CS70 Datasheet, PDF (1/24 Pages) STMicroelectronics – High side current sense high voltage op amp

CS70
High side current sense high voltage op amp
TSSOP8
(Plastic package)
Vm 1
SEL1 2
SEL2 3
Out 4
8 Vp
7 Vcc-
6 Gnd
5 Vcc+
Pin connections
(top view)
Features
 Independent supply and input common-mode
voltages
 Wide common-mode operating range: 2.9 V to
70 V in single-supply configuration, -2.1 V to
65 V in dual-supply configuration
 Wide common-mode surviving range: -16 V to
75 V (reversed battery and load-dump
conditions)
 Supply voltage range: 2.7 to 5.5 V in single-
supply configuration
 Low current consumption: I_CC max = 360 µA
Datasheet - production data
 Pin selectable gain: 20 V/V, 25 V/V, 50 V/V or
100 V/V
 Buffered output
Applications
 Wireless battery chargers
 Chargers for portable equipment
 Precision current sources
 Wearable
Description
The CS70 measures a small differential voltage
on a high-side shunt resistor and translates it into
a ground-referenced output voltage. The gain is
adjustable to four different values from 20 V/V up
to 100 V/V by two selection pins.
Wide input common-mode voltage range, low
quiescent current, and tiny TSSOP8 packaging
enable use in a wide variety of applications.
The input common-mode and power-supply
voltages are independent. The common-mode
voltage can range from 2.9 V to 70 V in the single-
supply configuration or be offset by an adjustable
voltage supplied on the Vcc- pin in the dual-
supply configuration.
With a current consumption lower than 360 µA
and a virtually null input leakage current in
standby mode, the power consumption in the
applications is minimized.
Part number
CS70P
Table 1. Device summary
Temperature range
Package
Packaging
- 40° C to +125 °C
TSSOP8
Tape and reel
Marking
103I
March 2014
This is information on a product in full production.
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