AP74502HQ

Description

The AP74502Q, AP74502HQ is an automotive AEC-Q100 qualified reverse battery polarity and overvoltage protection controller, which operates with 2 of external N-channel MOSFETs.

The AP74502Q, AP74502HQ is for input protection of 12V/24V/48V automotive systems. The input voltage support as low as 3.2V is particularly for severe cold crank requirements in automotive systems and up to 75V.

The AP74502Q, AP74502HQ controller provides a charge pump gate drive for an external Back to Back N-channel MOSFETs with the enable pin low, the controller is off and draws approximately 1μA of current.

The AP74502Q, AP74502HQ is available in SOT28 package.  

Feature(s)

• Input Voltage Ranges from 3.2V to 80V (3.9V Start-Up)
• -80V Reverse Battery Voltage
• Charge Pump for External N-ch Power MOSFETs
• Drives External Back to Back N-ch MOSFETs
• Gate Driver Strength Option
• AP74502Q: 60μA Peak Gate Source
• AP74502HQ: 11mA Peak Gate Source
• Low Shutdown Current of 0.9µA When Disabled
• Low Quiescent Current of 62µA When Enabled
• 3A Peak Gate Turn-Off Current
• ESD Protection: 2kV of HBM and 750V of CDM
• AEC-Q100 Qualification Compliance with Device Temperature Grade 1 (-40°C to +125°C Ambient Operating Temperature Range)
• 8-Pin SOT28 Package
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
• The AP74502Q, AP74502HQ are suitable for automotive applications requiring specific change control; these parts are AEC-Q100 qualified, PPAP capable, and manufactured in IATF16949 certified facilities. https://www.diodes.com/quality/product-definitions/

Application(s)

• Automotive body control units
• Automotive infotainment systems – head units, telematics control units
• Automotive ADAS systems – cameras
• Power of industrial automation such as PLC
• Enterprise power supplies