1 Features

• AEC-Q100 qualified for automotive applications:

– Temperature grade 1: –40°C to +125°C, TA

• Functional-Safety Capable

– Documentation available to aid functional safety

system design

• Low offset voltage: 1 mV (typical)

• High output current drive: 400 mA, continuous (per

channel)

– Replaces discrete op amps and transistors

• Wide supply range for both supplies (up to 16 V)

• Overtemperature shutdown

• Current limit

• Shutdown pin for low IQ applications

• Stable with large capacitive loads

• 2-MHz gain bandwidth with 3.4-V/μs slew rate

• Internal RF/EMI filter

• Package: 14-pin HTSSOP (PWP)

2 Applications

• Resolver-based automotive applications

• Inverter and motor control

• Brake system

• Electric power steering (EPS)

• Rearview mirror module

• Automotive eMirrors

• Servo drive power stage module

3 Description

The ALM2402F-Q1 is a dual-power op amp with

features and performance that make this device

preferable for resolver-based automotive applications.

The high gain bandwidth and slew rate of the device,

along with a continuous high-output current-drive

capability, make this device an excellent choice to

provide a low distortion and differential high amplitude

excitation required for modern resolvers. Current

limiting and overtemperature detection enhance

overall system robustness when driving analog

signals over wires that are susceptible to faults.

The ALM2402F-Q1 rail-to-rail output, enabled by the

low Rds(on) PMOS and NMOS transistors, keeps the

power dissipation low. The small HTSSOP package

with thermal pad and low RθJA allows users to

deliver high currents to loads while minimizing board

space. This minimized board space is one of the key

advantages offered by the ALM2402F-Q1 when used

in modern hybrid and electric vehicles.

The ALM2402F-Q1 maximum output voltage is

determined using the Maximum Output Voltage vs

Frequency plot at the bottom of this page.