TPS92830EVM: 3x 300mA @ 16V Max, High-Side N-Ch, Automotive LED Controller

The TPS92830-Q1 evaluation module (EVM) helps designers evaluate the operation and performance of the TPS92830-Q1, a 3-channel high-current linear LED controller for automotive lighting applications. It features precision current regulation with external MOSFET. It also has full diagnostics for LED-string open circuit and short circuit with auto recovery.

The TPS92830-Q1 device is an advanced automotive-grade high-side constant-current linear LED controller for delivering high current using external N-channel MOSFETs. The device has a full set of features for automotive applications. Each channel of the TPS92830-Q1 device sets the channel current independently by the sense resistor value. An internal precision constant-current regulation loop senses the channel current by the voltage across the sense resistor and controls the gate voltage of the N-channel MOSFET accordingly. The device also integrates a two-stage charge pump for low-dropout operation.

The charge-pump voltage is high enough to support a wide selection of N-channel MOSFETs. PWM dimming allows multiple sources for flexibility—internal PWM generator, external PWM inputs, or power-supply dimming. Various diagnostics and protection features specially designed for automotive applications help improve system robustness and ease of use. A one-fails–all fail fault bus supports TPS92830-Q1 operation together with the TPS92630-Q1, TPS92638-Q1, and TPS9261xQ1 family to fulfill various fault-handling requirements.