CS70P

Overview

The CS70P is a high-side current sense amplifier from STMicroelectronics, designed to measure differential voltage across a shunt resistor and provide a ground-referenced output. It features an adjustable gain selectable via pins at 20 V/V, 25 V/V, 50 V/V, or 100 V/V. The device operates with a common-mode voltage range of 2.9 V to 70 V in single-supply mode and supports supply voltages between 2.7 V and 5.5 V. Key electrical parameters include a gain-bandwidth product of 700 kHz, input offset voltage of 500 uV, and maximum quiescent current of 360 uA. It is housed in an 8-pin TSSOP package.

Feature Summary

• Provides independent control over supply voltage and input common-mode voltage for flexible high-side sensing configurations.
• Features pin-selectable gain options allowing adaptation to various signal amplification requirements without external components.
• Includes wide common-mode surviving range capability to withstand reversed battery connections and load-dump conditions.

Applications

• High-side current monitoring in automotive power distribution systems
• Battery management systems requiring precise current measurement
• Industrial motor control applications with high-voltage inputs

Procurement Notes

Verify the specific gain configuration required for your application, as the CS70P offers multiple gain options (20, 25, 50, or 100 V/V) determined by external pin selection. Ensure the selected variant matches the desired amplification factor before ordering. Confirm that the TSSOP-8 package is compatible with your PCB layout constraints. Check RoHS compliance status if environmental regulations apply to your manufacturing process.

Selection Notes

Select the CS70P when high-side sensing with a wide common-mode voltage range up to 70 V is required. Consider this component for designs needing low quiescent current consumption below 360 uA to minimize power loss. The adjustable gain feature allows optimization for different shunt resistor values and signal levels. Ensure the operating temperature range of -40 C to +125 C meets your environmental specifications.

Part Context

The CS70P belongs to the CS70 series of current sense amplifiers from STMicroelectronics. This series is engineered for high-voltage applications where accurate current monitoring is critical. The device integrates a buffered output stage and utilizes a TSSOP-8 package for compact implementation. It is part of ST's portfolio of analog signal conditioning solutions for industrial and automotive markets.

Replacement Considerations

No verified public substitute part numbers are available in the provided documentation. Consult official STMicroelectronics resources for potential cross-reference options if alternative sourcing is necessary.