STMicroelectronics TSC200 Datasheet
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TSC200
Datasheet
High voltage, current sense amplifier with open drain comparator and ref
Maturity status link
TSC200
Features
• Wide common mode voltage: -16 to 80 V
• 2.7 to 18 V supply voltage
• Amplification gain: 20 V/V
• 0.6 V internal reference
• Internal open-drain comparator
• Latching capability on comparator
• High accuracy: 3.5 % max. error overtemperature
• Bandwidth: 1 MHz
• Quiescent current: 1.8 mA maximum
• SO8 and MiniSO8 package
Applications
• High-side current sensing
• Low-side current sensing
• Overcurrent protection
• Telecom equipment
• Test and measurement equipment
• Industrial process control
Description
The TSC200 is a high-side current sense amplifier which delivers an analog voltage output. It can sense current via a shunt resistor over a wide range of common mode voltages, from -16 to +80 V, whatever the supply voltage is. It is available with an amplification gain of 20 V/V.
The TSC200 integrates an open-drain comparator with output latch function and an internal 0.6 V voltage reference connected to its input. External resistor divider can then set the switching threshold.
This device fully operates over the broad supply voltage range of 2.7 to 18 V and over the industrial temperature range of -40 to +125 °C.
DS13882 - Rev 1 - January 2022
For further information contact your local STMicroelectronics sales office.
www.st.com
1 Block diagram and pin description
Figure 1. Block diagram
TSC200
Block diagram and pin description
Figure 2. Pin connections (top view)
DS13882 - Rev 1
Pin
1
2
3
4
5
6
7
8
Pin name
V
CC
OUT
CMP
IN
GND
RESET
CMP
OUT
V
IN-
V
IN+
Table 1. Pin description
Description
Supply voltage
Current sense amplifier, output
Comparator input
Ground
Comparator reset pin, active low
Comparator output
Current sense amplifier, negative input
Current sense amplifier, positive input page 2/18
2
TSC200
Absolute maximum ratings and operating conditions
Absolute maximum ratings and operating conditions
Symbol
V
CC
V
IN
+, V
IN-
CMP
IN
,
RESET
OUT
CMP
OUT
I
IN
T
J
T
STG
ESD
R
THJA
Table 2. Absolute maximum ratings
Parameter
Supply voltage
Differential voltage (V
IN+
) – (V
IN-
)
Common mode voltage on input pins
Voltage present on pins V
IN+
, V
IN-
, CMP
IN
, RESET
Analog output
Voltage present on pin CMP
OUT
Input current on V
IN+
, V
IN-
Junction temperature
Storage temperature
Human Body Model (HBM)
Charged Device Model (CDM)
Thermal resistance junction to ambient
SO8
MiniSO8
1. For V
CC
≥ 12 V, Vdiff must not exceed 3 V.
Symbol
V
CC
V
ICM
T
Table 3. Operating conditions
Parameter
Supply voltage
Common mode voltage on input pins
Operating free-air temperature range
Value
-0.3 to 18.3
25% V
CC
-18 to +82
Gnd -0.3 to Vcc +0.3
Gnd -0.3 to Vcc +0.3
Gnd -0.3 to 18.3
5
150
-65 to 150
4000
1000
125
190
Value
2.7 to 18
-16 to +80
-40 to 125
Unit
V
V mA
°C
°C
V
°C/W
Unit
V
V
°C
DS13882 - Rev 1 page 3/18
TSC200
Electrical characteristics
3 Electrical characteristics
Table 4. Electrical characteristics of the Current sense amplifier at V
CC
= 12 V, V
ICM
= 12 V, V
Sense
= 100 mV, R
L
= 10 kΩ to GND, R pull-up
= 5.1 kΩ connected from CMP
OUT
to V
CC
, CMP
IN
= GND, T = 25 °C (unless otherwise specified)
Symbol
Input
Parameter Conditions Min.
Typ.
Max.
Unit
V
Sense
Full scale sense input voltage
-16
80
0.15
110
VCC − 0.25
Gain
80
V
V V
ICM
Common mode input range Tmin < T < Tmax
CMR Common mode rejection
V
IN
+ = -16 to 80 V,
V
IN
+ = 12 to 80 V,
Tmin < T < Tmax
Vos
T = 25 °C
25 °C < T < Tmax
I
IB
Input bias current, V
IN-
pin
Output (V
Sense
≥ 20 mV)
G Gain
Tmin < T < 25 °C
|ΔVos/ΔT| Offset drift (RTI) vs. temperature Tmin < T < Tmax
SVR Supply voltage rejection, RTI
V
OUT
= 2 V,
V
IN
+ = 18 V,
V
CC
= 2.7 to 18 V,
Tmin < T < Tmax
Tmin < T < Tmax
E
G
Gain error
TSC200
V
Sense
= 20 to 100 mV
Tmin < T < Tmax
TE
G
Total output error
V
Sense
= 120 mV, V
CC
= 16 V
Tmin < T < Tmax
V
Sense
= 20 to 100 mV NLE Non linearity error
R
O
C
Load
Output impedance
Maximum capacitive load
Output (V
Sense
< 20 mV)
No sustained oscillation
Output TSC200
-16 ≤ V
ICM
< 0 V
0 ≤ V
ICM
≤ Vcc,
V
CC
= 5 V
Vcc < V
ICM
≤ 80 V
Voltage output
V
V
OH
OL
Output swing to the positive rail
Output swing to GND
V
IN
- = 11 V,
V
IN
+ = 12 V,
Tmin < T < Tmax
V
IN
- = 0 V, V
IN
+ = -50 mV,
Tmin < T < Tmax
100
-2.5
-3
-3.5
120
±0.1
0.5
3
±0.5
20
±0.05
±0.1
±0.002
1.5
10
300
300
4
+2.5
+3
+3.5
100
±16
±1
±2
±2.2
±3.5
400
V
CC
- 0.15
V
CC
- 0.25
50 dB mV
µV/°C
µV/V
µA
V/V
%
%
%
Ω nF mV mV mV
DS13882 - Rev 1 page 4/18
TSC200
Electrical characteristics
Symbol
Dynamic performances
BW
SR
Parameter
C
Load
= 5 pF
Slew rate
TSC200
Conditions Min.
Typ.
1
7
Max.
Unit
MHz
V/µs
Ts Settling time
V
Sense
= 10 to 100 mVpp
Up to 1 % final value,
C
Load
= 5 pF
2 µs
Noise, RTI
E
N
Power supply
Voltage noise density f = 100 kHz 55 nV/√Hz
I
CC
Current consumption
V
OUT
= 2 V
V
Sense
= 0 mV,
Tmin < T < Tmax
0.84
1.8
1.85
mA
C_POR
1.5
V
1. RTI stands for “Related to input”.
2. Offset is extrapolated from measurements of the output at V
Sense
of 20 mV and 100 mV.
3. Total output error considers effects of gain error and V
OS
inaccuracy.
4. The TSC200 is designed to power up with the comparator in a defined reset state as long as RESET is open or grounded. The comparator is in reset as long as the power supply is below the voltage shown here. The comparator assumes a state based on the comparator input above this supply voltage. If RESET is high at power-up, the comparator output comes up high and requires a reset to assume a low state, if appropriate.
DS13882 - Rev 1 page 5/18
TSC200
Electrical characteristics
Table 5. Electrical characteristics of the Comparator at V
CC
= 12 V, V
ICM
= 12 V, V
Sense
= 100 mV, R
L
= 10 kΩ to GND,
R pull-up
= 5.1 kΩ connected from CMP
OUT
to V
CC
, T = 25 °C (unless otherwise specified)
Unit Symbol
Input
Parameter Conditions
V
TH
Threshold
T = 25 °C
Tmin < T < Tmax
Hyst
I
IB
Input bias current, CMP
Input impedance
IN
V
IN
Input voltage range, CMP
Output (open-drain)
IN
pin
Av
I
OH
V
OL
Large signal differential voltage gain
Response time
CMP
OUT
R
L
from 1 to 4 V
≥ 15 kΩ connected to 5 V
V
ID
= 0.4 V, V
OH
= V
CC
V
ID
= -0.6 V, I
OL
= 2.35 mA
T
P
R
L
to 5 V, C
Load
= 15 pF,
100 mV input step with 5 mV overdrive
RESET
V
T
R
I
T
DW
T
D
Minimum Reset pulse width
Propagation delay
Tmin < T < Tmax
T = 25 °C
Tmin < T < Tmax
Min.
590
586
0
Typ.
608
-9
0.005
200
0.0001
140
0.3
1.1
2
0.1
0.1
V
Max.
620
625
10
15
CC
1
-1.5
300
1. See
Figure 3 for details, Hysteresis=V
TRIP
- - V
TRIP
+.
2. Specified by design.
3. V
ID
is the differential voltage present at the comparator inputs.
4. Open-drain output can be pulled up to 2.7~18 V range, regardless of V
CC
.
5. The comparator response time specified is the time interval between the input step and the instant when the output crosses 1.4 V.
6. The RESET input has an internal 2 MΩ (typical) pull-down. In case RESET pin is left open, the output shows a LOW state, with transparent comparator operation.
mV nA
V
V/mV
µA mV
µs
V
MΩ
µs
µs
Figure 3. Typical comparator hysteresis
DS13882 - Rev 1 page 6/18
4
TSC200
Typical performance characteristics
Typical performance characteristics
T = 25 °C, V
CC
= 12 V, V
IN+
= 12 V and V
Sense
= 100 mV (unless otherwise specified).
Figure 4. Gain vs. frequency (C
L
= 1000 pF) Figure 5. Gain vs. frequency (C
L
= 100 pF)
Figure 6. Gain plot Figure 7. CMRR and PSRR vs. frequency
DS13882 - Rev 1 page 7/18
Figure 8. Output error vs. V sense
TSC200
Typical performance characteristics
Figure 9. Output error vs. common mode voltage
Figure 10. Output current vs. output voltage at V
CC
= 2.7 V
Figure 11. Output current vs. output voltage at V
CC
= 12 V
Figure 12. Quiescent current vs. output voltage Figure 13. Quiescent current vs. common mode voltage
DS13882 - Rev 1 page 8/18
TSC200
Typical performance characteristics
Figure 14. Output short-circuit current vs. supply voltage
Figure 15. Step response for 20 to 30 mV V sense
Figure 16. Step response for 20 to 110 mV V sense
Figure 17. Step response for 90 to 100 mV V sense
Figure 18. Comparator V
OL
vs. I
SINK
Figure 19. Comparator trip points vs. V
CC
DS13882 - Rev 1 page 9/18
Figure 20. Comparator trip points vs. temperature
TSC200
Typical performance characteristics
Figure 21. Comparator reset voltage vs. V
CC
Figure 22. Comparator propagation delay vs. overdrive voltage
Figure 23. Comparator propagation delay vs. temperature
Figure 24. Comparator propagation delay
DS13882 - Rev 1 page 10/18
5
5.1
TSC200
Package information
Package information
In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com
. ECOPACK is an ST trademark.
SO8 package information
Figure 25. SO8 package outline
DS13882 - Rev 1
Ref.
c
D
E
E1 e
A
A1
A2 b h
L
L1 k ccc
Min.
0.10
1.25
0.28
0.17
4.80
5.80
3.80
0.25
0.40
1°
Table 6. SO8 package mechanical data
Dimensions
Millimeters
Typ.
Min.
Max.
1.75
0.25
0.40
4.90
6.00
3.90
1.27
0.48
0.23
5.00
6.20
4.00
0.04
0.049
0.011
0.007
0.189
0.228
0.150
0.635
1.04
0.50
1.27
0.010
0.016
8°
0.10
1°
Inches
Typ.
0.040
0.016
0.193
0.236
0.154
0.050
Max.
0.069
0.010
0.019
0.010
0.197
0.244
0.157
0.020
0.050
8°
0.004
page 11/18
5.2
MiniSO8 package information
Figure 26. MiniSO8 package outline
TSC200
MiniSO8 package information
DS13882 - Rev 1
Dim.
L1
L2 k ccc
E1 e
L
A
A1
A2 b c
D
E
0
0.75
0.22
0.08
2.8
4.65
2.8
Min.
Millimeters
Typ.
0.4
Table 7. MiniSO8 mechanical data
Inches
Min.
0.85
3
4.9
3
0.65
0.6
0.95
0.25
Max.
1.1
0.15
0.95
0.4
0.23
3.2
5.15
3.1
0.8
0.016
0
0.03
0.009
0.003
0.11
0.183
0.11
0° 8°
0.1
0°
Typ.
0.033
0.118
0.193
0.118
0.026
0.024
0.037
0.01
Max.
0.043
0.006
0.037
0.016
0.009
0.126
0.203
0.122
0.031
8°
0.004
page 12/18
6 Ordering information
Order code
TSC200IDT
TSC200IST
Gain (V/V)
20
20
Table 8. Ordering information
Package
SO8
MiniSO8
Packing
Tape and reel
TSC200
Ordering information
Marking
TSC200I
O123
DS13882 - Rev 1 page 13/18
Revision history
Date
24-Jan-2022
Table 9. Document revision history
Version
1
Changes
First release.
TSC200
DS13882 - Rev 1 page 14/18
TSC200
Contents
Contents
DS13882 - Rev 1 page 15/18
TSC200
List of tables
List of tables
Table 4. Electrical characteristics of the Current sense amplifier at V
= GND, T = 25 °C (unless otherwise specified) . . 4
Table 5. Electrical characteristics of the Comparator at V
, T = 25 °C (unless otherwise specified) . . . . . . . . . . . . . . . . . . . . . 6
DS13882 - Rev 1 page 16/18
TSC200
List of figures
List of figures
Figure 4. Gain vs. frequency (C
Figure 5. Gain vs. frequency (C
Figure 8. Output error vs. V sense
Figure 10. Output current vs. output voltage at V
= 2.7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 11. Output current vs. output voltage at V
= 12 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 15. Step response for 20 to 30 mV V sense
Figure 16. Step response for 20 to 110 mV V sense
Figure 17. Step response for 90 to 100 mV V sense
Figure 19. Comparator trip points vs. V
Figure 21. Comparator reset voltage vs. V
DS13882 - Rev 1 page 17/18
TSC200
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DS13882 - Rev 1 page 18/18
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