MAX25432

RECOMMENDED FOR NEW DESIGNS

Automotive, 100W, USB PD, PPS, Buck-Boost Port Controller and Protector Industry's First Single-IC, 100W, Automotive USB-PD PPS Power, Charger and Protector

Analog Devices MAX25432 Product Info

10 February 2026 11

Features

Integrated I²C Buck-Boost Controller with PPS
- 4.5V to 36V Input Operating Range
- 3.3V to 21V Constant Voltage, 10mV LSB
- 1A to 6.35A Current Limit, 25mA LSB
- 220kHz, 300kHz, and 400kHz SwitchingFrequency
- V_BUS Cable Compensation up to 516mΩ
- External Frequency Synchronization and SpreadSpectrum for Reduced EMI
USB PD 3.1 Type-C Port Controller
- USB-IF Compliant - TID 9154
- Up to 800mV Ground Offset
- Pairs with ADI TCPM for Turn-Key Solution
MAX25432BATLP Enables:
- ADI TCPM Alternate Mode and Dual-Role Port
- Improved CC Detection
- Advanced Monitoring Algorithms (V, T)
- Dynamic Loop Control

Highest Performance, Safest, and Lowest Cost Passenger Cable-Shield Short-to-Battery Protection
- Minimizes Short-Circuit Currents with a Small,Single-FET Solution
Integrated Current-Sense Amplifiers, ADC and DAC
- Integrated 3.3V to 5.0V, 1.5W, Smart, Reliable V_CONN Switches and Protection, 50mA to 500mA OCP
Integrated 24V DC Protection on Protected HVD+, HVD-, HVCC1, HVCC2 Outputs
Integrated Legacy USB 2.0 Charging Support Including BC1.2, Apple CarPlay, OTG, and Apple MFi Rev 3x
Integrated ±15kV Air-Gap/±8kV Contact Discharge ISO 10605 and IEC 61000-4-2 ESD Protection
-40°C to +125°C Operating Temperature Range
40-Pin, 6mm x 6mm, TQFN Package with EP
A

Part details & applications

The MAX25432 combines an automotive-grade buck-boost controller capable of full-range 3.3V to 21V programmable power supply (PPS) at up to 6.35A, a USB Power Delivery (USB PD) analog front-end (AFE), legacy USB charging support, and USB Type-C^® protection switches for automotive USB host or downstream-facing (DFP) applications. The USB Type-C protection switches provide automotive system-level ESD protection and 24V short-circuit protection for D+, D-, CC1, CC2, and V_CONN. The device can optionally support legacy charging modes for older passenger phones including BC1.2, Apple^® Charge, Apple CarPlay^®, Apple MFi, and USB On-The-Go (OTG).

The MAX25432B integrates a USB PD AFE, which supports the USB-IF Type-C Port Controller Interface (TCPCI) specification and can interface with any I²C master in the application. The MAX25432A provides configuration channel (CC) signal pass-through protection for an external USB PD controller.

P-suffix and G-suffix devices include intelligent detection and protection to avoid high short-circuit currents flowing from the car battery through the cable shield to ground during fault events, thus preventing car module damage.

The MAX25432 is available in a small, 6mm x 6mm, 40-pin TQFN-EP package and requires very few external components. The MAX25432 evaluation (EV) kit and collateral provide a convenient platform to the design engineer for rapid evaluation with reduced test and firmware development time.

Applications

Dedicated Charging Modules
Head Unit, Radio, Navigation
Rear-Seat Entertainment Modules
USB Hubs, Breakout Boxes, and Multimedia Hubs

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