MAXIM MAX25432BATLG/V+

The MAX25432 combines an automotive-grade buckboost 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 VCONN. 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. 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.

• USB PD PHY That Is TCPCI-Standard for Use with Any Low-Cost I2C Master (Hub IC, MCU, SoC)
• Ground Offset Adjusted BMC PHY for Maximum Signal-to-Noise Ratio
• Non-TCPC Versions Available for Protecting External USB PD Controller (MAX25432A)
• Integrated Buck-Boost Controller for External H-Bridge
• 4.5V to 36V Input Operating Range
• 220kHz, 300kHz, and 400kHz Switching Frequency
• External Frequency Synchronization and Spread Spectrum for Reduced EMI
• USB PD PPS APDO Support – TID 5821
• 10mV Programmable Voltage Step Size
• 25mA Programmable Current Step Size
• Integrated Cable Compensation up to 516mΩ
• Highest Performance, Safest, and Lowest Cost Passenger Cable-Shield Short-to-Battery Protection
• Minimizes Short-Circuit Currents with a Small, Single-FET Solution
• Integrated High-Side Current-Sense Amplifiers, ADC and DAC
• Integrated 3.3V to 5.0V, 1.5W, Smart, Reliable VCONN Switches and Protection
• 50mA Programmable Overcurrent Step Size
• 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℃ to +125℃ Operating Temperature Range
• 40-Pin, 6mm x 6mm, TQFN Package with EP
• AEC-Q100 and AEC-Q006 Qualified

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