AMS AS1302 Power Management Datasheet
إعلان
إعلان
austriamicrosystems AG is now ams AG
The technical content of this austriamicrosystems datasheet is still valid.
Contact information:
Headquarters:
ams AG
Tobelbaderstrasse 30
8141 Unterpremstaetten, Austria
Tel: +43 (0) 3136 500 0 e-Mail: [email protected]
Please visit our website at
www.ams.com
D a ta s h e e t
A S 1 3 0 2
5 V / 3 0 m A A d a p t i v e I n d u c t o r l e s s B o o s t C o n v e r t e r
1 General Description 2 Key Features
The AS1302 is a 30mA inductorless boost converter using a double H-bridge charge-pump topology with two external flying capacitors. The AS1302 charge pump features 1:2 and 2:3 operation modes as well as a 1:1 operation mode where the input is directly connected to the output.
! Up to 90% Efficiency
! 2.9V to 5.15V Input Voltage
! Regulated 5V Output
The AS1302 runs on a 1.2MHz fixed frequency and is utilized with a low noise regulation scheme to allow usage together with sensitive RF circuitry from the same battery supply. Additionally to increase efficiency the
AS1302 switches to 49kHz at light loads.
Designed to reside in portable and space limited equipment the 1.2MHz charge pump converts a 2.9V to
5.15V input to regulated 5V output with 3% accuracy.
The shutdown function reduces the supply current to
<1µA and disconnects the load from the output. The integrated soft-start circuitry prevents high inrush currents being drawn from the battery during start-up.
The AS1302 includes built-in under-voltage lockout, short circuit-, and thermal protection circuitry.
! Automatic Mode Switching
! <1µA Shutdown Current
! Startup with Full Load (within 1ms)
! Up to 30mA Load Current
! Short Circuit Protection
! Output Disconnected During Shutdown
! Soft-Start
! No Inductor Required
!
!
AG
FLY
=220nF)
still
- 1:1 Battery Feed Through Mode
- 2:3 Single Phase Mode
valid
!
Package Options:
The AS1302 is available in TDFN (3x3x0.8mm) 10-pin and an extremely small 1.2x1.2mm WL-CSP 8-bumps package with 0.4mm pitch.
ams
- 1:2 Single Phase Mode
- TDFN (3x3x0.8mm) 10-pin
- WL-CSP 8-bumps with 0.4mm Pitch portable instruments, microprocessor based systems and remote data-acquisition systems.
Figure 1. AS1302 - Typical Application Diagram
C
FLY1
220nF
C1+ C1-
V
BATT VBATT
2.9V to 5.15V
C
BAT
2.2µF
Technical
AS1302
C2+
C2-
C
FLY2
220nF
GND
VOUT
V
OUT
= 5V
C
OUT
2.2µF
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AS1302
Datasheet - P i n A s s i g n m e n t s
4 Pin Assignments
Figure 2. Pin Assignments (Through View)
C1-
GND EN
GND 1 10 EN
A1 A2 A3
C12 9 VBATT
NC 3 8 C2-
C1+ B1 B3 VBATT
C1+
VOUT
4
5
AS1302
Pin Descriptions
Table 1. Pin Descriptions
Pin Name
C1-
GND
EN
Pin Number
A1
A2
A3
7 NC
6 C2+
TDFN (3x3x0.8mm) 10-pin
C1
VOUT
C2
C2+
C3
C2-
WL-CSP 8-bumps
valid
Connector 1-.
Negative terminal of flying cap 1.
Ground.
AG
Description still
Enable.
(operating if EN = 1). Set this digital input to logic high for normal operation. For shutdown, set to logic low.
Connector 1+.
Positive terminal of flying cap 1.
C1+
B1
GND
VBATT
VOUT
C2+
C2-
B3
C1
C2
C3
+2.9V to 5.15V Input Voltage.
Bypass this pin to GND with a
≥
2.2µF low
ESR ceramic capacitor.
ams
Connector 2-.
This pin must be bypassed with a
Positive terminal of flying cap 2.
≥
2.2µF low ESR
Technical
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AS1302
Datasheet - A b s o l u t e M a x i m u m R a t i n g s
5 Absolute Maximum Ratings
Stresses beyond those listed in
may cause permanent damage to the device. These are stress ratings only,
affect device reliability.
Table 2. Absolute Maximum Ratings
All pins to GND
Parameter
Operating Temperature Range
Storage Temperature Range
ESD
Package Body Temperature
Max
+7.0
Units
V
Notes Min
-0.3
-40
-65
2
500
+260
+85
+125
ºC
ºC kV
V
HBM MIL-Std. 883E 3015.7
methods
CDM JESD22-C101C
methods
valid
The reflow peak soldering temperature
ºC
AG
(body temperature) specified is in accordance with
IPC/JEDEC J-STD-
Classification for Non-Hermetic Solid
State Surface Mount Devices”.
The lead finish for Pb-free leaded packages is matte tin (100% Sn).
Technical
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AS1302
Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s
6 Electrical Characteristics
V
BATT
= 2.9V to 5.15V, V
OUT
= 5V, C
OUT
= C
BAT
= 2.2µF, C
FLY1
= C
FLY2
=220nF, T
AMB
= -40 to +85ºC. Typical values are at T
AMB
= +25ºC and
V
IN
= 3.3V, unless otherwise specified.
Table 3. Electrical Characteristics
Symbol Parameter
V
BATT(on)
Undervoltage Lockout Rising V
BATT
Conditions Min Typ Max Units
2.8
2.9
V
Falling V
BATT
2.4
2.5
2.8
V V
BATT(off)
Undervoltage Lockout
V
BATT
Battery Supply Voltage
V
OUT
Output Voltage Accurracy
Δ
V
O
/
Δ
I
O11
Δ
V
O
/
Δ
I
O23
Δ
V
O
/
Δ
I
O12
Load Regulation in 1:1 Mode
Load Regulation in 2:3 Mode
Load Regulation in 1:2 Mode
V tgr11/23
I
OUT
= 0mA, 15mA
V
BATT
= 5.4V, I
OUT
= 10~30mA
V
BATT
= 4.3V, I
OUT
= 10~30mA
V
BATT
= 3.3V, I
OUT
= 10~30mA
1:1 / 2:3 mode, falling V
BATT
V tgr23/12
I
OUT
V ripple
I inr
I short
η
12
η
23
I
OP12
I
OP23
Mode Switching Voltage 2:3 / 1:2 mode, falling V
BATT
Load Current
1
Output Voltage Ripple
Mode switching voltage hysteresis
V
BATT
= 3.6V, I
OUT
AG
V
BATT
= 3.6V, I
OUT
= 2mA
Inrush Current
2
Short-Circuit Current
Efficiency in Switching Mode
Operating Quiescent Current
ams
I
OUT
BATT
BATT
= 2.9V,
= 3.8V,
V
BATT
= 3.4V (1:2 mode without load)
V
BATT
= 4.5V (2:3 mode without load)
V
BATT
= 5.3V (1:1 mode without load) I
OP11
I
OFF
Shutdown Current
Input Levels
EN = 0V
Input High Level
V
IH
V
IL
Timing
Input Low Level pin EN
1.1
0.0
2.9
4.85
5.0
2
3
3
5.15
5.15
5.1
still
22
V mV mA
V
V
valid
mV
PP
40
85
85
240
170
100
0.01
150
150
300
230
150
1
5.5
0.4
mV
PP mA mA
%
%
µA
µA
V
BATT
= 3.6V, I
OUT
= 30mA f
OSC t
START
Oscillator Frequency
Thermal Regulation
T
OFF
Startup Time
Temperature Shutdown
V
BATT
= 3.6V, I
OUT
= 2mA
Temperature rising
Hysteresis
1. The device is tested in a proprietary test mode.
2. The inrush current is limited by the internal soft-start circuitry.
0.9
40
1.2
49
0.5
145
10
1.5
65
1
MHz kHz ms
ºC
Note:
All limits are guaranteed. The parameters with min and max values are guaranteed with production tests or
SQC (Statistical Quality Control) methods.
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V
V
AS1302
Datasheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s
7 Typical Operating Characteristics
V
BATT
= 3.3V, V
OUT
= 5V, C
OUT
= C
BAT
= 2.2µF, C
FLY1
= C
FLY2
=220nF, T
AMB
= +25ºC, unless otherwise specified.
Figure 3. Efficiency vs. Input Voltage; I
LOAD
= 1mA
100
90
80
70
60
80
70
60
50
40
30
20
50
40
30
20
10
0
2.6
10
0
2.6
1:2 mode
3
1:2 mode
3
2:3 mode
3.4
3.8
4.2
4.6
Input Voltage (V)
2:3 mode
3.4
3.8
4.2
4.6
Input Voltage (V)
5
1:1 mode
5.4
Figure 5. Efficiency vs. Input Voltage; I
LOAD
= 20mA
100
90
Figure 4. Efficiency vs. Input Voltage; I
LOAD
= 10mA
100
90
80
70
60
50
40
30
20
1:2 mode
2:3 mode
1:1 mode
valid
10
3.4
3.8
4.2
still
5
0
100
2.6
AG
3
Figure 6. Efficiency vs. Input Voltage; I
LOAD
= 30m
A
90
5.4
80
70
60
5
50
40
1:2 mode mode
content
10
0 mode
2:3
5.4
2.6
3 3.4
3.8
4.2
4.6
Input Voltage (V)
5
1:1 mode
5.4
Figure 7. Quiescent Current vs. Input Voltage
300
275
250
225
200
175
150
125
100
75
Technical
50
2.4
2.9
3.4
3.9
4.4
Input Voltage (V)
4.9
5.4
Figure 8. Quiescent Current vs. Temperature
300
275
250
Vi n=3.4V (1:2 Mode)
Vi n=4.5V (2:3 Mode)
Vi n=5.3V (1:1 Mode)
225
200
175
150
125
100
75
50
-45 -30 -15 0 15 30 45 60 75 90
Temperature (°C)
Revision 1.03
5 - 18 www.austriamicrosystems.com/DC-DC_Step-Up/AS1302
AS1302
Datasheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s
Figure 9. Efficiency vs. Output Current; V
BATT
= 2.9V
100
90
80
70
60
49kHz 1.2MHz
50
40
Figure 10. Efficiency vs. Output Current; V
BATT
= 3.3V
100
90
80
70
60
49kHz 1.2MHz
50
40
30
20
10
0
0.1
1 10
Output Current (mA)
100
30
20
10
0
0.1
1 10
Output Current (mA)
Figure 11. Efficiency vs. Output Current; V
BATT
= 3.6V
100
90
80
70
60
50
40
30
20
10
0
0.1
1
49kHz 1.2MHz
ams
10 100
Figure 12. Efficiency vs. Output Current; V
BATT
= 4V
100
AG
70
60
49kHz
still
1.2MHz
50
40
30
20
content
10
Output Current (mA) Output Current (mA)
100
100
valid
Figure 13. Efficiency vs. Output Current; V
BATT
= 4.3V
100
90
80
70
60
49kHz 1.2MHz
50
40
30
20
10
0
Technical
0.1
100 1 10
Output Current (mA)
Figure 14. Efficiency vs. Output Current; V
BATT
= 5.4V
100
90
80
70
60
50
40
30
20
10
0
0.1
1 permanent 1:1 Mode
10
Output Current (mA)
100 www.austriamicrosystems.com/DC-DC_Step-Up/AS1302 Revision 1.03
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AS1302
Datasheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s
Figure 15. Output Voltage vs. Output Current
5.15
5.1
49kHz 1.2MHz
5.05
5
4.95
4.9
4.85
0.01
Vi n = 2.9V
Vi n = 3.3V
Vi n = 4.3V
0.1
1 10
Output Current (mA)
100
Figure 17. Output Voltage vs. Input Voltage
5.15
5.1
1:2 mode
2:3 mode
5.05
5
1:1 mode
Figure 16. Output Voltage vs. Output Current
5.15
5.1
49kHz 1.2MHz
5.05
5
4.95
4.9
4.85
5
0.01
Vi n = 3.0V
Vi n = 3.6V
Vi n = 4.0V
0.1
1 10
Output Current (mA)
Figure 18. Output Voltage vs. Temperature
5.15
AG
5.05
still
4.95
4.95
4.9
4.85
Iout = 10mA
Iout = 20mA
Iout = 30mA
2.9
3.2
3.5
3.8
4.1
4.4
4.7
5 5.3
Input Voltage (V)
4.9
Iout = 0.1mA
Iout = 10mA
Iout = 30mA
-45 -30 -15 0 15 30 45 60 75 90
Temperature (°C)
100
valid
Figure 19. Startup Time vs. Input Voltage; load=166
Ω
1
0.875
0.75
0.625
0.5
0.375
0.25
0.125
0
Technical
2.9 3.15 3.4 3.65 3.9 4.15 4.4 4.65 4.9
Input Voltage (V) www.austriamicrosystems.com/DC-DC_Step-Up/AS1302 Revision 1.03
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AS1302
Datasheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s
Figure 20. Turn-ON / Turn-OFF Time @ load = 166
Ω
Figure 21. Inrush Current; no load
60
55
50
45
200µs/Div
Figure 22. Switching Frequency vs. Input Voltage;
I
OUT
= 2mA
65
50µs/Div
Figure 23. Switching Frequency vs. Input Voltage;
1.5
1.4
1.3
I
OUT
= 20mA
AG still valid ams
1.2
1.1
1
40
2.9
3.2
3.5
3.8
4.1
4.4
Input Voltage (V)
4.7
2.9
3.2
3.5
3.8
4.1
4.4
4.7
Input Voltage (V)
5
Figure 24. Switching Frequency vs. Temperature;
I
OUT
= 2mA
65
Figure 25. Switching Frequency vs. Temperature;
I
OUT
= 20mA
1.5
1.4
60
1.3
55
50
45
Technical
40
-45 -30 -15 0 15 30 45 60 75 90
Temperature (°C) www.austriamicrosystems.com/DC-DC_Step-Up/AS1302
1.2
1.1
1
0.9
-45 -30 -15 0 15 30 45 60 75 90
Temperature (°C)
Revision 1.03
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AS1302
Datasheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s
Figure 26. Load Transient; Mode = 1:1,
I
OUT
= 30 to 10 to 30 mA
Figure 27. Load Transient; Mode = 2:3,
I
OUT
= 30 to 10 to 30 mA
500µs/Div
Figure 28. Load Transient; Mode = 1:2,
I
OUT
= 30 to 10 to 30 mA
500µs/Div
Figure 29. Load Transient; Mode = 1:2,
I
OUT
= 20 to 4 to 20 mA
AG still valid ams
500µs/Div 500µs/Div
Figure 30. Line Transient Figure 31. Output Ripple
Technical
5ms/Div www.austriamicrosystems.com/DC-DC_Step-Up/AS1302 Revision 1.03
10µs/Div
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AS1302
Datasheet - D e t a i l e d D e s c r i p t i o n
8 Detailed Description
Functional Description
The AS1302 is a high efficiency and low noise switched capacitor DC-DC converter that is capable of boost operation.
It is equipped with two built-in coupled H-bridge type switch configurations. Based on the value of the output voltage the system automatically initiates mode-switching to achieve the highest possible efficiency. The regulation of the output voltage is achieved by a regulation loop, which modulates the current drive capability of the power transistors so that the amount of charge transferred from the input to the output at each clock cycle is controlled and is equal to the charge needed by the load.
Regulation Loop
The AS1302 operates at a constant frequency. For the regulation loop power transistors, a resistor divider and an error amplifier are used to keep the output voltage within the allowed limits. The error amplifier takes the feedback and transistor controls the charge transferred from the input to the output and therefore the regulation of the output is
valid
realized. This regulation concept which is based on adjusting the amount of charge transferred, delivers the smallest voltage ripple possible.
Figure 32. AS1302 - Functional Block Diagram
C1+
C
FLY1
C1-
C2+
AG
Double-H Bridge
still
VBATT
VOUT
+
C
BAT
Vmode
ams
Topology
V ctrl
∫
i t d t
C
OUT start
Mode
Select
Temp
State Machine
&
Control Logic
Ref
Bias
POR
CLK
EN
On
Off
AS1302
GND
To detetect the output current in the 2:3 and in the 1:2 mode, a current sense is used. The device switches to a lower switching frequency (49kHz typ), due to a detected light-load condition. With this frequency an excellent light-load efficiency is achieved and no audible noise is generated. If the load is increasing (typically more than 3mA), the device operates at 1.2MHz.
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AS1302
Datasheet - D e t a i l e d D e s c r i p t i o n
Switch Configuration
The AS1302 has nine built-in power switches in the shape of two coupled H-bridge topologies. The system features
1:2 and 2:3 operation modes as well as a 1:1 operation where the input is directly connected to the output.
In 2:3 operation mode two flying capacitors are placed in series and each capacitor is charged to the half of the input voltage. In pumping phase the flying capacitors are placed in parallel. The bottom-plates of the parallel flying capacitors C
FLY1 and C
FLY2
are connected to the input voltage so that the voltage at the top-plates of the flying capacitors is boosted to a voltage equal to V
BATT
+ V
BATT
/2. By connecting the top-plates of the capacitors to the output, the output voltage in the 2:3 mode can be up to one and a half of V
BATT
. If the top-plate voltage is higher than
5V, the regulation loop adapts the power transistor’s on-resistance to drop some voltage.
Figure 33. 2:3 Operating Mode
Charging Phase
V
BATT
+2.9V to 5.15V
SW1
SW2
C
FLY1
SW4
C
FLY2
SW3
V
OUT
+5V
V
BATT
+2.9V to 5.15V
AG
Pumping Phase
SW1
SW2
C
FLY1
still
SW4
C
FLY2
V
OUT
+5V
valid
voltage. During pumping phase the input voltage is connected to the bottom of the charged flying capacitors. The voltage at the top-plates of the parallel capacitors is now boosted to 2V
BATT
. By connecting the top-plates of the capacitors
content
Figure 34. 1:2 Operating Mode
Charging Phase Pumping Phase
V
OUT
+5V
V
OUT
+5V
SW1
SW1
SW2
V
BATT
+2.9V to 5.15V
V
BATT
+2.9V to 5.15V
SW2
C
FLY1
C
FLY2
SW3
C
FLY1
C
FLY2
SW3
SW4
Technical
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AS1302
Datasheet - D e t a i l e d D e s c r i p t i o n
Soft-start
The soft-start circuit prevents the supply from high inrush currents caused by the converter’s power-up sequence.
During the soft-start (0.5ms typ) the device limits the inrush current. The device is capable to power-up at the minimum specified battery voltage and with the maximum load (ohmic equivalent) applied to the output.
Undervoltage Lockout, UVLO
The AS1302 is equipped with an undervoltage lockout functionality. If the battery voltage drops below 2.5V (typ) the device enters the undervoltage lockout condition. The device remains in this condition until the battery voltage is high enough to enter the soft start sequence. An internal hysteresis of 300mV prevents ringing during startup. If the input voltage increases to 2.8V (typ) again after such a condition the device turns-on automatically.
Shutdown Mode
The AS1302 enters low-power shutdown mode when EN is set to logic low. In shutdown the charge-pump action is halted, the output is completely disconnected from the input and V
OUT
will drop to 0V.
Note: valid
VBATT power-up.
Short-Circuit Protection
Short-circuit protection prevents damage to the device if the output is shorted to ground. Whenever the output voltage is pulled significantly below V
BATT
, short-circuit protection is triggered and limits the current. As soon as V the protection is released and the device enters soft-start mode.
Thermal Shutdown
AG still
recovers shutdown will be initiated if the junction temperature exceeds 145°C. If the temperature drops below this value, the thermal shutdown will be released automatically and the device resumes operation. A hysteresis prevents the thermal shutdown from oscillating.
Efficiency Consideration
charge pump the efficiency can be calculated by:
η
=
P
-------------
P
IN
=
-------------------------------------------
V
V
OUT
BATT
×
×
I
1 5
I
OUT
V
-------------------------
1 5
V
BATT
(EQ 1)
The same works for the 1:2 operation mode. The input current of the charge pump is approximately 2x the load current. The efficiency of a charge pump in 1:2 operation mode can be calculated by:
η
=
P
-------------
P
IN
=
V
V
BATT
×
×
I
2
I
OUT
=
V
-------------------
2
V
BATT
(EQ 2)
are valid. Hence, with the same input Voltage the 2:3 operation mode will result into a higher efficiency than the 1:2 operation mode.
Technical
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AS1302
Datasheet - A p p l i c a t i o n I n f o r m a t i o n
9 Application Information
External Component Selection
The high internal oscillator frequency of 1.2MHz permits the use of small capacitors for both, the flying capacitors and the output capacitors. For any given load the value of the flying- and output capacitors as well as their ESR are affecting the output voltage performance.
In general, the capacitor’s ESR is inversely proportional to its physical size. Larger capacitances and higher voltage ratings tend to reduce ESR. The ESR is a function of the frequency too, so it must be rated at the devices operating frequency. Another factor affecting capacitor ESR is temperature.
Note:
Many capacitors have a huge capacity variation over temperature. This can be compensated by choosing a capacitor with a better thermal coefficient or by choosing a larger nominal value to ensure proper operation over temperature.
It is not critical which type of input bypass capacitor C
BAT
and output filter capacitor C
OUT performance of the charge pump. Low ESR capacitors should be used to minimize V
OUT
ripple. Multi-layer ceramic
valid
capacitors are recommended since they have extremely low ESR and are available in small footprints.
Input Capacitor
transients. During startup and mode change it supplies a part of the peak input current drawn by the device.
Output Capacitor
The output capacitor is charged to V
OUT
AG
. These spikes contribute to the ripple voltage of V
OUT
. Therefore, ceramic or tantalum low ESR capacitors are recommended for C
OUT
to minimize the output voltage ripple.
Table 4. Recommended Input and Output Capacitors
Part Number
GRM188R61C225KE15
GRM21BR71E225KA73
C
2.2µF
2.2µF
ams
GRM188R60J475KE19 4.7µF X5R 6.3V
GRM188R60J106ME47 10µF X5R 6.3V
Dimensions
0603
0603
Manufacturer
Murata www.murata.com
Figure 35. Load Regulation Comparision with different
Capacitors
5.15
5.1
5.05
Figure 36. Output Ripple vs. Output Current
Comparision with different Capacitors
100
80
49kHz 1.2MHz
2.2µF 16V 0603
2.2µF 25V 0805
4.7µF 6.3V 0603
10µF 6.3V 0603
60
5
4.95
4.9
4.85
Technical
10µF 6.3V 0603
0 5 10 15 20 25 30
Load Current (mA)
40
20
0
0 5 10 15 20
Load Current (mA)
25 30
13 - 18 www.austriamicrosystems.com/DC-DC_Step-Up/AS1302 Revision 1.03
AS1302
Datasheet - A p p l i c a t i o n I n f o r m a t i o n
Flying Capacitor Selection
To ensure the required output current and avoid high peak currents the values of the flying capacitors C
FLY1
and C
FLY2 are very critical. A 220nF capacitor is sufficient for most applications. Dependent on the operation mode the AS1302 alternately charges and discharges the C
FLY1/2
. While the ESR of the output capacitor produces a part of the output voltage ripple, the ESR of the flying capacitors directly adds to the charge pump’s output source resistance. Therefore low ESR capacitors, e.g. tantalum or ceramic, are recommended for the flying capacitors as well.
Due to different materials for ceramic capacitors the on the material depending temperature and voltage coefficients have to be considered. The capacitance of a X7R ceramic capacitor is more stable than a Z5U or Y5V ceramic capacitor over the whole temperature range from -40°C to +85°C. As an additional effect a Z5U or Y5V ceramic capacitor will loose about the half of his nominal capacitance when the rated voltage is applied.
It is important to choose the ceramic capacitor according to the minimum available capacitance over the operating voltage and the bias voltage. This information is stated in the datasheets of the capacitor manufacturer.
Table 5. Recommended Flying Capacitors
Manufacturer valid
Part Number C TC Code Rated Voltage Dimensions
GRM188R71E224KA88
GRM155R61A224KE19
Layout Consideration
220nF
220nF
X7R
X5R
25V
10V
0603
0402
Murata www.murata.com
still
To achieve the best performance of the AS1302 a careful board layout is necessary to reduce the impact of the high switching frequency and the high transient currents which are produced by the device. For a proper regulation under all conditions a true ground plane and short connections to all external capacitors are needed.
Technical
www.austriamicrosystems.com/DC-DC_Step-Up/AS1302 Revision 1.03
14 - 18
AS1302
Datasheet - P a c k a g e D r a w i n g s a n d M a r k i n g s
10 Package Drawings and Markings
The device is available in a TDFN (3x3x0.8mm) 10-pin and
WL-CSP 8-bumps
package.
Figure 37. TDFN (3x3x0.8mm) 10-pin Package Diagram
D
SEE
DETAIL B
D2
D2/2
B
PIN 1 INDEX AREA
(D/2 xE/2)
DETAIL B aaa C 2x
TOP VIEW e
Terminal Tip
L
PIN 1 INDEX AREA
(D/2 xE/2) ccc C
0.08 C
AG
e
N N-1
(ND-1) X e
BTM VIEW
b ddd bbb
C
C A B
still
K
valid
C
SIDE VIEW
SEATING
PLANE
ODD TERMINAL SIDE
ams
Table 6. TDFN (3x3x0.8mm) 10-pin Package Dimensions
Symbol
A
Min
0.70
Typ
0.75
0.05
Max
0.80
content
E BSC A1 0.00
0.02
A3 0.20 REF D2 2.20
0.03
L1
L2 aaa bbb ccc ddd eee ggg
0.15
0.10
0.10
0.05
0.08
0.10
0.15
0.13
E2
L
θ
k b e
N
ND
1.40
0.30
0º
0.20
0.18
Note:
Technical
4. Dimensioning and tolerancing conform to
ASME Y14.5M-1994
.
Typ
3.00
3.00
0.40
0.25
0.50
10
5
Max
2.70
1.75
0.50
0.30
www.austriamicrosystems.com/DC-DC_Step-Up/AS1302 Revision 1.03
15 - 18
AS1302
Datasheet - P a c k a g e D r a w i n g s a n d M a r k i n g s
Figure 38. WL-CSP 8-bumps Package Diagram
Top through view
1210±20.00
Bottom view
Ball side
205±20
AG
200 typ.
40 typ.
270±1
0
350 typ.
600±30
still
All dimensions in µm
20
valid
Technical
www.austriamicrosystems.com/DC-DC_Step-Up/AS1302 Revision 1.03
16 - 18
AS1302
Datasheet - O r d e r i n g I n f o r m a t i o n
11 Ordering Information
The device is available as the standard products shown in
.
Table 7. Ordering Information
Ordering Code Marking
AS1302-BWLT
AS1302-BTDT
ASQ7
ASQ7
Description
5V/30mA Adaptive Inductorless Boost
Converter
5V/30mA Adaptive Inductorless Boost
Converter
Delivery Form
Tape and Reel
Tape and Reel
Package
WL-CSP 8-bumps
TDFN (3x3x0.8mm)
10-pin
Note:
All products are RoHS compliant and Pb-free.
Buy our products or get free samples online at ICdirect: http://www.austriamicrosystems.com/ICdirect
For further information and requests, please contact us mailto:[email protected]
or find your local distributor at http://www.austriamicrosystems.com/distributor
AG still valid
Technical
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17 - 18
AS1302
Datasheet
Copyrights
Copyright © 1997-2010, austriamicrosystems AG, Tobelbaderstrasse 30, 8141 Unterpremstaetten, Austria-Europe.
Trademarks Registered ®. All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner.
All products and companies mentioned are trademarks or registered trademarks of their respective companies.
Disclaimer
Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. austriamicrosystems AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. austriamicrosystems AG reserves the right to change specifications and prices at any time and without notice.
Therefore, prior to designing this product into a system, it is necessary to check with austriamicrosystems AG for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by
valid
austriamicrosystems AG for each application. For shipments of less than 100 parts the manufacturing flow might show deviations from the standard production flow, such as test flow or test location.
The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However, austriamicrosystems AG shall not be liable to recipient or any third party for any damages, including but not limited to austriamicrosystems AG rendering of technical or other services.
AG still
consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of
Contact Information
Headquarters austriamicrosystems AG
Tobelbaderstrasse 30
A-8141 Unterpremstaetten, Austria
Tel: +43 (0) 3136 500 0
Technical
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18 - 18
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