AMS AS1105 Datasheet

AMS AS1105 Datasheet

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AS1105 Serially interfaced 4-digit LED driver datasheet

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AS1105

Serially Interfaced, 4-Digit LED Driver

1 General Description

The AS1105 is an LED driver for 7-segment numeric displays of up to 4 digits. The AS1105 can be programmed via a conventional 4wire serial interface.

The device includes a BCD code-B decoder, a multiplex scan circuitry, segment and display drivers, and a 32-bit memory. The memory is used to store the LED settings, so that continuous reprogramming is not necessary.

Every individual segment can be addressed and updated separately.

Only one external resistor is required to set the current through the

LED display.

Brightness can be controlled either in an analog or digital way. The user can choose the internal code-B decoder to display numeric digits or to address each segment directly.

The AS1105 features an extremely low shutdown current of only

20µA and an operational current of less than 500µA. The number of visible digits can be programmed as well.

The AS1105 can be reset by software and an external clock can be used. Several test modes support easy debugging.

AS1105 is offered in a 20-pin SOIC package.

2 Key Features



Cost effective version of AS1100 functionality for applications up to 4-Digits



10MHz Serial Interface



Individual LED Segment Control



Decode/No-Decode Digit Selection



20µA Low-Power Shutdown (Data Retained)



Extremely low Operating Current 0.5mA in open loop



Digital and Analog Brightness Control



Display Blanked on Power-Up



Drive Common-Cathode LED Display



Software Reset



Optional External clock



20-pin SOIC Package

3 Applications

The AS1105 is an ideal solution for Bar-Graph Displays, Industrial

Controllers, Panel Meters, LED Matrix Displays and White Goods such as washing machines, dishwasher, etc.

Figure 1. AS1105 - Typical Application Circuit

www.ams.com/LED-Driver-ICs/AS1105

9.53k

MOSI

µP I/O

SCK

+5V

ISET

VDD

DIFG0-DIG3

4 Digits

DIN

LOAD

AS1105

CLK

GND

GND

SEG A-G

SEP DP

8 Segments

4-Digit µP Display

Revision 1.36

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AS1105

Datasheet - P i n A s s i g n m e n t s

4 Pin Assignments

Figure 2. Pin Configuration (Top View)

DOUT

DIN

DIG0

GND

DIG2

DIG3

GND

DIG1

LOAD

CLK

9

10

7

8

5

6

3

4

1

2

AS1105

17

16

15

14

20

19

18

13

12

11

SEG D

SEG DP

SEG E

SEG C

VDD

I

SET

SEG G

SEG B

SEG F

SEG A

SO

4.1 Pin Descriptions

Table 1. Pin Descriptions

Pin Number Pin Name

1

2

DOUT

DIN

3,8,5,6

4,7

DIG0 : DIG3

GND

9

LOAD

10

11:14, 17:20

15

16

CLK

SEGA:G, DP

ISET

VDD

Description

Serial data output for cascading drivers.

The output is valid after 16.5 clock cycles. The output is never set to high impedance.

Data input.

Data is programmed into the 16-bit shift register on the rising CLK edge.

4-digit driver lines that sink the current from the common cathode of the display. In shutdown mode the AS1105 switches the outputs to V

DD

.

Both GND pins must be connected.

Strobe input.

With the rising edge of the LOAD signal the 16-bit of serial data is latched into the register.

Clock input.

The interface is capable to support clock frequencies up to 10MHz. The serial data is clocked into the internal shift register with the rising edge of the CLK signal. On the DOUT pin the data is applied with the falling edge of CLK.

Seven segment driver lines including the decimal point.

When a segment is turned off the output is connected to GND.

The current into I

SET

determines the peak current through the segments and therefore the brightness.

Positive Supply Voltage

(+5V) www.ams.com/LED-Driver-ICs/AS1105 Revision 1.36

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AS1105

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

Table 2. Absolute Maximum Ratings

Parameter

VDD to GND

DIN, CLK, LOAD to GND

All Other pins to GND

Current

DIG0–DIG3 Sink Current

SEGA–G, DP Source Current

Continuous Power Dissipation (TA = +85°C)

Wide SO

Operating Temperature Range

Storage Temperature Range

Min

-0.3

-0.3

-0.3

-40

-65

500

100

941

Max

+6

+6

V

DD

+ 0.3

+85

+150

Units

V

V

V mA mA mW

ºC

ºC

Package body temperature

+260 ºC

Moisture Sensitivity Level

3

Notes

Derate 11.8mW/ºC above +70ºC

The reflow peak soldering temperature (body temperature) is specified according IPC/JEDEC

J-STD-020D “Moisture/Reflow Sensitivity

Classification for non-hermetic Solid State

Surface Mount Devices”.

Represents a maximum floor life of 168h www.ams.com/LED-Driver-ICs/AS1105 Revision 1.36

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AS1105

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

DD

= 5V, R

SET

= 9.53k

Ω ±1%, T

A

= T

MIN

to T

MAX

, unless otherwise noted

.

Table 3. Electrical Characteristics

Symbol

V

DD

Parameter

Operating Supply Voltage

Conditions

I

DDSD

I

DD

Shutdown Supply Current

Operating Supply Current

All digital inputs at V

DD

T

A

= +25ºC

or GND,

R

SET

= open circuit

All segments and decimal point on,

I

SEG

= -40mA f

OSC

I

DIGIT

Display Scan Rate

Digit Drive Sink Current

I

SEG

Δ I

SEG

I

DIGIT

Segment Drive Source Current

Segment Drive Current Matching

Digit Drive Source Current

I

SEG

Logic Inputs

I

IH

, I

IL

V

IH

V

IL

V

OH

V

OL t

LDCK

Segment Drive Sink Current

Input Current DIN, CLK, LOAD

Logic High Input Voltage

Logic Low Input Voltage

Output High Voltage

Output Low Voltage

Timing Characteristics

Hysteresis Voltage t

CP t

CH t

CL

CLK Clock Period

CLK Pulse Width High

CLK Pulse Width Low

CLK Rise to LOAD Rise Hold Time t

CSH t

DS t

DH t

DO

DIN Setup Time

DIN Hold Time

Output Data Propagation Delay

LOAD Rising Edge to Next Clock

Rising Edge t

CSW t

DSPD

Minimum LOAD Pulse High

Data-to-Segment Delay

T

A

V

V

= +25ºC, V

Digit off, V

IN

DOUT, I

SOURCE

DOUT, I

SINK

= -1mA

= 1.6mA

DIN, CLK, LOAD

C

OUT

= 0.65V

OUT

DIGIT

= 0V or V

LOAD

= (V

= (V

Segment off, V

SEG

DD

-0.3V)

= 0.3V

DD

= 50pF

DD

-1V)

Min

4.0

-1

3.5

-2

5

V

DD

- 1

100

50

50

0

25

0

500

320

-30

50

50

Typ

5.0

20

330

800

-40

3.0

1

Max

5.5

50

500

1300

-45

Units

V

µA

µA mA

Hz mA mA

% mA mA

1

0.8

0.4

25

2.25

V

V

µA

V

V

V ns ns ms ns ns ns ns ns ns ns www.ams.com/LED-Driver-ICs/AS1105 Revision 1.36

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AS1105

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

Figure 3. Segment Driver Capability,

V

DD

= 5V, Logic Level = High

50

45

40

35

30

25

20

15

10

5

0

0 0.5

1 1.5

2 2.5

3 3.5

4

Voltage below VDD at output (V)

4.5

Figure 4. Segment Current versa R

SET

50

45

40

35

30

25

20

15

10

5

0

10

RSET (kOhm)

100 www.ams.com/LED-Driver-ICs/AS1105 Revision 1.36

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AS1105

Datasheet - D e t a i l e d D e s c r i p t i o n

8 Detailed Description

8.1 Serial-Addressing Modes

The programming of the AS1105 is done via the 4-wire serial interface. A programming sequence consists of 16-bit packages. The data is shifted into the internal 16-Bit register with the rising edge of the CLK signal. With the rising edge of the LOAD signal, the data is latched into a digital or control register depending on the address. The LOAD signal must go to high after the 16th rising clock edge. The LOAD signal can also come later but just before the next rising edge of CLK, otherwise data would be lost. The content of the internal shift register is applied 16.5 clock cycles later to the DOUT pin. The data is clocked out at the falling edge of CLK. The Bits of the 16Bit-programming package are described in

Table 4 . The first 4 Bits D15-D12 are ”don’t care, D11-D8 contain the address and D7-D0 contain the data. The first bit is D15, the most

significant bit (MSB). The exact timing is given in

Figure 5

.

Figure 5. Timing Diagram

LOAD t

CL t

C t

C t

C t

CSW t

LDCK

CLK

DIN t

D t

D

D15 D14 D1 t

DO

D0

DOUT

Table 4. Serial Data Format (16 Bits)

D15

X

D14

X

D13

X

D12

X

D11 D10 D9

Address

D8 D7 D6 D5 D4 D3 D2 D1

MSB Data LSB

D0

8.2 Digit and Control Registers

The AS1105 incorporates 12 registers, which are listed in

Table 5

. The digit and control registers are selected via the 4Bit address word. The 4 digit registers are realized with a 32bit memory. Each digit can be controlled directly without rewriting the whole contents. The control registers consist of decode mode, display intensity, number of scanned digits, shutdown, display test and reset/external clock register.

8.3 Shutdown Mode

The AS1105 features a shutdown mode, where it consumes only 20µA current. The shutdown mode is entered via a write to register 0Ch. Then all segment current sources are pulled to ground and all digit drivers are connected to V

DD

, so that nothing is displayed. All internal digit registers keep the programmed values. The shutdown mode can either be used for power saving or for generating a flashing display by repeatedly entering and leaving the shutdown mode. The AS1105 needs typically 250µs to exit the shutdown mode. During shutdown, the

AS1105 is fully programmable. Only the display test function overrides the shutdown mode.

www.ams.com/LED-Driver-ICs/AS1105 Revision 1.36

6 - 15

AS1105

Datasheet - D e t a i l e d D e s c r i p t i o n

8.4 Initial Power-up

After powering up the system, all register are reset, so that the display is blank. The AS1105 starts the shutdown mode. All registers should be programmed for normal operation. The default settings enable only scan of one digit, the internal decoder is disabled, data register and intensity register are set to the minimum value.

8.5 Decode-Mode Register

In the AS1105, a BCD decoder is included. Every digit can be selected via register 09h to be decoded. The BCD code consists of the numbers 0-

9, E,H, L,P and -.

In register 09h, a logic high enables the decoder for the appropriate digit. In case that the decoder is bypassed (logic low), the

data Bits D7-D0 correspond to the segment lines of the AS1105. In Table 7 some possible settings for register 09h are shown. Bit D7, which corresponds to the decimal point, is not affected by the settings of the decoder. Logic high means that the decimal point is displayed. In Table 8

the font of the Code B decoder is shown. In Table 10 the correspondence of the register to the appropriate segments of a 7 segment display is shown (see Figure 6) .

8.6 Intensity Control and Interdigit Blanking

Brightness of the display can be controlled in an analog way by changing the external resistor (R

SET

). The current, which flows between V

DD and I

SET

, defines the current that flows through the LEDs. The LED current is 100 times the I

SET

current. The minimum value of R

SET

should be

9.53k

Ω , which corresponds to 40mA segment current. The brightness of the display can also be controlled digitally via register 0Ah. The brightness can be programmed in 16 steps and is shown in

Table 10 . An internal pulse width modulator controls the intensity of the display.

8.7 Scan-Limit Register

The scan limit register 0Bh selects the number of digits displayed. When all 4 digits are displayed the update frequency is typically 800Hz. If the number of digits displayed is reduced, the update frequency is reduced as well. The frequency can be calculated using 8fOSC/N, where N is the number of digits. Since the number of displayed digits influences the brightness, the resistor R

SET

should be adjusted accordingly. Table 12

shows the maximum allowed current, when fewer than 4 digits are used. To avoid differences in brightness the scan limit register should not be used to blank portions of the display (leading zeros).

Table 5. Register Address Map

Register

No-Op

Digit 0

Digit 1

Digit 2

Digit 3

Decode Mode

Intensity

Scan Limit

Shutdown

Not used

Reset and ext. Clock

Display Test

X

X

X

X

D15-D12

X

X

X

X

X

X

X

X

1

1

1

1

1

1

0

1

0

0

Register

D11 D10

0

0

0

0

1

0

0

0

1

1

0

0

1

1

1

0

1

0

1

0

D8

0

1

0

1

0

1

0

1

1

0

0

1

D9

0

0

1

1

0

1

Hex Code

0xX4

0xX9

0xXA

0xXB

0xX0

0xX1

0xX2

0xX3

0xXC

0xXD

0xXE

0xXF www.ams.com/LED-Driver-ICs/AS1105 Revision 1.36

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AS1105

Datasheet - D e t a i l e d D e s c r i p t i o n

Table 6. Shutdown Register Format (address (hex) = 0xXC)

Mode

Shutdown Mode

Normal Operation

Address Code

(Hex)

0xXC

0xXC

D7

X

X

Table 7. Decode-mode Register Examples (address (hex) = 0xX9)

D6

X

X

D5

X

X

Decode Mode

No decode for digits 4–0

Code B decode for digit 0

No decode for digits 4–1

Code B decode for digits 3–0

Code B decode for digits 4–0

Table 8. Code B Font

7-Segment

Character

H

L

P blank

--

E

8

9

6

7

4

5

2

3

0

1

D7

D7

0

0

0

1

X

X

X

X

X

X

X

X

X

X

X

X

X

X

D6-D4

Register Data

D3 D2

X

X

0

0

0

0

0

0

0

0

1

1

0

0

1

1

1

1

1

1

1

1

0

0

1

1

0

0

1

1

0

0

1

1

0

0

1

D6

0

0

1

1

0

1

0

1

1

0

0

1

1

0

0

1

D1

0

0

0

1

D5

0

1

0

1

0

1

1

0

1

0

1

0

1

0

1

0

D0

0

0

0

1

Register Data

D4 D3

0 0

0

1

1

DP

0

1

1

0

0

1

0

1

1

1

1

1

0

0

1

A

1

0

1

0

1

0

1

0

1

1

0

0

1

1

1

1

B

1

X

X

Register Data

D4 D3

X

X

D2

0

0

1

1

D1

0

0

1

1

D2

X

X

1

1

1

1

0

0

0

0

1

0

1

0

0

0

1

E

1

1

0

0

0

0

0

1

1

1

1

1

1

0

1

On Segments = 1

C D

1

1

1

0

1

1

0

1

0

1

0

1

0

0

1

1

1

0

1

1

1

D0

0

Note:

In the above table, the decimal point (DP) is set by bit D7 = 1

Table 9. No-decode Mode Data Bits and Corresponding Segment Lines

Corresponding Segment Line

D7

DP

D6

A

Register Data

D5

B

D4

C

D3

D

D2

E

D1

F

D1

X

X

1

1

1

1

0

1

0

0

1

1

1

0

1

0

0

F

1

Hex Code

0x00

0x01

0x0F

0xFF

D0

G

D0

0

1

0

1

1

1

0

1

1

0

1

1

1

1

1

0

1

G

0 www.ams.com/LED-Driver-ICs/AS1105 Revision 1.36

8 - 15

AS1105

Datasheet - D e t a i l e d D e s c r i p t i o n

Figure 6.

Standard 7-segment LED

E

A

F

G

B

D

C

DP

Table 10. Intensity Register Format (address (hex) = 0xXA)

Duty Cycle

1/32 (min on)

3/32

5/32

7/32

9/32

11/32

13/32

15/32

17/32

19/32

21/32

23/32

25/32

27/32

29/32

31/32 (max on)

D7

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

D6

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

D5

X

Table 11. Scan-limit Register Format (address (hex) = 0xXB)

Scan Limit

Display digit 0 only

Display digits 0 & 1

Display digits 0 1 2

Display digits 0 1 2 3

D7

X

X

X

X

D6

X

X

X

X

X

X

D5

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

D4

X

X

X

X

X

Register Data

D4 D3

X

X

X

X

1

1

1

1

1

1

1

0

1

0

0

0

0

0

0

D3

0

0

0

D2

0

0

1

1

0

1

1

0

0

1

0

1

1

0

1

0

0

D2

0

0

1

D1

0

1

0

1

1

0

1

0

1

1

0

0

1

1

0

0

1

D1

0

1

0

D0

0

1

0xXB

0xXC

0xXD

0xXE

0xXF

0xX7

0xX8

0xX9

0xXA

Hex Code

0xX0

0xX1

0xX2

0xX3

0xX4

0xX5

0xX6

1

0

1

0

1

1

0

1

0

1

0

1

0

1

0

D0

0

Hex Code

0xX0

0xX1

0xX2

0xX3 www.ams.com/LED-Driver-ICs/AS1105 Revision 1.36

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AS1105

Datasheet - D e t a i l e d D e s c r i p t i o n

8.8 Display Test Register

With the display test register 0Fh all LED can be tested. In the test mode all LEDs are switched on at maximum brightness (duty cycle 31/32). All programming of digit and control registers is maintained. The format of the register is given in

Table 13 .

Table 12. Maximum Segment Current for 1-, 2-, or 3-digit Displays

Number of Digits Displayed

1

2

3

Maximum Segment Current (mA)

10

20

30

Table 13. Display-test Register Format (address (hex) = 0xXF)

Mode

Normal Operation

Display Test Mode

D7

X

X

D6

X

X

D5

X

X

X

X

Register Data

D4 D3

X

X

D2

X

X

D1

X

X

D0

0

1

Note:

The AS1105 remains in display-test mode until the display-test register is reconfigured for normal operation.

8.9 No-Op Register (Cascading of AS1105)

The no-operation register 00h is used when AS1105s are cascaded in order to support more than 4 digit displays. The cascading must be done in a way that all DOUT are connected to DIN of the following AS1105. The LOAD and CLK signals are connected to all devices. For a write operation for example to the fifth device the command must be followed by four no-operation commands. When the LOAD signal finally goes to high all shift registers are latched. The first four devices have got no-operation commands and only the fifth device sees the intended command and updates its register.

8.10 Reset and External Clock Register

This register is addressed via the serial interface. It allows to switch the device to external clock mode (If D0=1 the CLK pin of the serial interface operates as system clock input.) and to apply an external reset (D1). This brings all registers (except reg. E) to default state. For standard operation the register contents should be "00h".

Table 14. Reset and external Clock register (address (hex) = 0xXE)

Mode

Normal Operation, internal clock

Normal Operation, external clock

Reset state, internal clock

Reset state, external clock

Address Code

(hex)

0xXE

0xXE

0xXE

0xXE

X

X

D7

X

X

X

X

D6

X

X

X

X

D5

X

X

Register Data

D4 D3

X

X

X

X

X

X

X

X

X

X

D2

X

X

0

1

D1

0

1

1

0

D0

0

1

Table 15. R

SET

vs. segment current and LED forward voltage

I

SEG

(mA)

40

30

20

10

1.5

12.2k

Ω

17.8k

Ω

29.8k

Ω

66.7k

Ω

2.0

11.8k

Ω

17.1k

Ω

28.0k

Ω

63.7k

Ω

V

LED

(V)

2.5

11.0k

Ω

15.8k

Ω

25.9k

Ω

59.3k

Ω

3.0

10.6k

Ω

15.0k

Ω

24.5k

Ω

55.4k

Ω

3.5

9.69k

Ω

14.0k

Ω

22.6k

Ω

51.2k

Ω www.ams.com/LED-Driver-ICs/AS1105 Revision 1.36

10 - 15

AS1105

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

9.1 Supply Bypassing and Wiring

In order to achieve optimal performance the AS1105 shall be placed very close to the LED display to minimize effects of electromagnetic interference and wiring inductance. Furthermore, it is recommended to connect a 10µF electrolytic and a 0.1µF ceramic capacitor between V

DD and GND to avoid power supply ripple. Also, both GNDs must be connected to ground.

9.2 Selecting R

SET

Resistor and Using External Drivers

The current through the segments is controlled via the external resistor R

SET

. Segment current is about 100 times the current in I

SET

. The right values for I

SET

are given in

Table 12

. The maximum current the AS1105 can drive is 40mA. If higher currents are needed, external drivers must be used. In that case it is no longer necessary that the AS1105 drives high currents. A recommended value for R

SET

is 47k Ω . In cases that the

AS1105 only drives few digits Table 10 specifies the maximum currents and R

SET

must be set accordingly. Refer to Absolute Maximum Ratings

to calculate acceptable limits for ambient temperature, segment current, and the LED forward-voltage drop.

9.3 4x8 LED Dot Matrix Driver

The example in

Figure 7

uses the AS1105 to drive an 4x8 LED dot matrix. The LED columns have common cathode and are connected to the

DIG0-3 outputs. The rows are connected to the segment drivers. Each of the 32 LEDs can be addressed separately. The columns are selected

via the digits as shown in Table 5 . The decode mode register (0xX9) has to be programmed to ‘00000000’ as stated in

Table 7

. The single LEDs in a column can be addressed as stated in

Table 10

, where D0 corresponds to segment G and D7 to segment DP. For a multiple digit dot matrix several AS1105 have to be cascaded.

Figure 7. Application Example as LED Dot Matrix Driver

Diode Arrangement

µP

SEG G

SEG F

SEG E

SEG D

SEG C

SEG B

SEG A

SEG DP

DIG 0

4x8 LED Dot

DIG 3

1

12

1

9

SEG A-G DIG 0-3

DOUT

VDD

DIN

LOA

CLK

GND

AS1105

ISET

GND

19

18

VBAT

9.53k

SEG G

SEG F

SEG E

SEG D

SEG C

SEG B

SEG A

SEG DP

DIG 0

4x8 LED Dot

DIG 3

12

1

1

9

SEG A-G DIG 0-3

DOUT

VDD

DIN

LOA

CLK

GND

AS1105

ISET

GND

19

18

VBAT

9.53k

www.ams.com/LED-Driver-ICs/AS1105 Revision 1.36

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AS1105

Datasheet - A p p l i c a t i o n I n f o r m a t i o n

9.4 Cascading Drivers

The AS1105 can be cascaded as well. The DOUT pin must be connected to the DIN pin of the following AS1105.

Table 16. Package Thermal Resistance Data

Package

20 Wide SO

Thermal Resistance (

θ

JA

)

+85°C/W

Maximum Junction Temperature (TJ) = +150°C

Maximum Ambient Temperature (TA) = +85°C

9.5 Computing Power Dissipation

The upper limit for power dissipation (PD) for the AS1105 is determined from the following equation:

PD = (V

DD

x 0.5mA) + (V

DD

- V

LED

)(DUTY x I

SEG

x N)

Where:

V

DD

= supply voltage

DUTY = duty cycle set by intensity register

N = number of segments driven (worst case is 4)

I

V

LED

= LED forward voltage

SEG

= segment current set by R

SET

Dissipation Example:

I

SEG

= 40mA, N = 4, DUTY = 31/32, V

LED

= 1.8V at 40mA, V

DD

= 5.25V

PD = 5.25V(0.5mA) + (5.25V - 1.8V)(31/32 x 40mA x 4) = 0.54W

Thus, for a SO package θ

JA = +85ºC/W (see Table 13), the maximum allowed ambient temperature T

A

is given by:

T

J,MAX

= T

A

+ PD x

θ

JA = 150ºC = T

A

+0.54W x 85ºC/W

Where: T

A

= +104ºC

(EQ 1)

(EQ 2)

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AS1105

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 20-pin SOIC package.

Figure 8. SOIC-20 Package Drawings & Dimensions

Symbol

A

A1

A2

D

E

B

C e

Min

2.44

0.10

2.24

0.36

0.23

12.65

7.40

1.27 BSC

Max

2.64

0.30

2.44

0.46

0.32

12.85

7.60

Symbol

H h

J

K

L

R

ZD

α

Min

10.11

0.31

0.53

7° BSC

0.51

0.63

0.66 REF

Max

10.51

0.71

0.73

1.01

0.89

8° www.ams.com/LED-Driver-ICs/AS1105 Revision 1.36

13 - 15

AS1105

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 listed in Table 17

.

Table 17. Ordering Information

Part

AS1105WL

AS1105WL-T

Temp Range

-40ºC to +85ºC

-40ºC to +85ºC

Note:

All products are RoHS compliant.

Buy our products or get free samples online at www.ams.com/ICdirect

Technical Support is available at www.ams.com/Technical-Support

For further information and requests, email us at [email protected]

(or) find your local distributor at www.ams.com/distributor

Package

20-pin SOIC

20-pin SOIC

Delivery Form

Tubes

T&R www.ams.com/LED-Driver-ICs/AS1105 Revision 1.36

14 - 15

AS1105

Datasheet - O r d e r i n g I n f o r m a t i o n

Copyrights

Copyright © 1997-2012, ams 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 ams AG are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. ams 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. ams 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 ams 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 ams 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 ams AG is believed to be correct and accurate. However, ams AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or 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 ams AG rendering of technical or other services.

Contact Information

Headquarters

ams AG

Tobelbaderstrasse 30

A-8141 Unterpremstaetten, Austria

Tel : +43 (0) 3136 500 0

Fax : +43 (0) 3136 525 01

For Sales Offices, Distributors and Representatives, please visit: http://www.ams.com/contact www.ams.com/LED-Driver-ICs/AS1105 Revision 1.36

15 - 15

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