TPA132Q

Automotive Current-Sense Amplifier with PWM Rejection

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Overview
Development Resources
Application
Ordering Detail

Overview

The TPA132Q is a current-sense amplifier with a very wide input common-mode voltage range from −4 V to 80 V with a small-signal bandwidth of 1 MHz. The enhanced PWM rejection allows the TPA132Q to accommodate the solenoids and motors applications. The device features high precision accuracy specifications of Vos and the gain error, which makes it ideal for the small signal conditioning interfacing with a high accuracy ADC.

Fixed gains are optional: 20 V/V, 50 V/V, 100 V/V, 200 V/V, and 500 V/V. The device offers breakthrough performance throughout the temperature range of −40°C to +125°C. The device is offered SOP8 and TSSOP8 packages.

Many systems, including motors and solenoids, employ PWM signals for modulation or control purposes. However, these PWM signals generate fast common-mode voltage transitions that oscillate between high voltage and ground potential. This can pose a challenge for the current measurement circuitry, as it may result in undesirable output voltage fluctuations. To address this issue, the device incorporates an advanced PWM rejection feature. This feature minimizes the impact of common-mode voltage transitions and ensures stable and reliable output voltage.

Status

Production
Rating

Automotive
Feature

Automotive Bi-Directional Current-Sense Amplifier with PWM Rejection
VCM Min

-4
VCM Max

80
Vos drift Typ (μV/c)

0.15
Input Direction

Bi-dir
CMRR Min (dB)

130
BW (kHz)

1000
Gain Option

G = 20, 50
GE Max at full temp range (%)

0.5
GE Drift, max (ppm/c)

12
Vos max (μV)

100
Ib Typ (nA)

1000
PWM Rejection

YES
VS Min

3
VS Max

5.5
Iq Max (μA)

4000
Channel

1
Comparator

0
Package

SOP8, TSSOP8

Development Resources

Documentation

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Documentation
- Data Sheet
- Selection Guide
- Application Note
- Technical Note
- User Guide
- Test Report
- Document Name
- Type
- Language
- Date
- 3PEAK Automotive Products Selection Guide
  
  Selection Guide
  
  English
  
  03/20/2024
- Datasheet_TPA132Q
  
  Data Sheet
  
  English
  
  11/05/2024
  
  Automotive Current-Sense Amplifier with PWM Rejection
- Introduction to Latch-up and the Preventive Measures
  
  Technical Note
  
  English
  
  01/19/2024
- Application Tips on ESD-EOS
  
  Technical Note
  
  English
  
  01/19/2024
- 3PEAK Analog Products Selection Guide
  
  Selection Guide
  
  English
  
  01/19/2024

Application

• Motor Controls

• Current Sensing (High-Side and Low-Side)

• Solenoid and Valve Control

• Power Management

Ordering Detail

Order Part Number	Buy	Samples	Rating	Feature	Status	1ku Price	Release Date	Package	Lead time (week)	MSL	Packing	MPQ	CPQ
TPA132A2Q-TS1R-S	Buy now	Request	/	/	2024-12-09	Production	TSSOP8	24	MSL1	T&R	3000	15000	3030000835
TPA132A2Q-TS1R-S	Buy now	Request	/	/	2024-12-09	Production	TSSOP8	24	MSL1	T&R	3000	15000	3030000835
TPA132A1Q-SO1R-S	Buy now	Request	Automotive Grade	/	Production	/	2024-09-30	SOP8	11	MSL1	T&R	4000	20000