Texas Instruments TPS92682-Q1 Dual-Channel Peak Current-Mode Controller is programmable to operate in constant-voltage (CV) or constant-current (CC) modes. In CV mode, the TPS92682-Q1 can be programmed to operate as two independent or dual-phase Boost voltage regulators. The output voltage can be programmed using an external resistor voltage divider, and a SPI-programmable 8-bit DAC. In CC mode, the device is designed to support dual channel step-up or step-down LED driver topologies. LED current can be independently modulated using analog or PWM dimming techniques. Analog dimming with over 28:1 range is obtained using a programmable 8-bit DAC. PWM dimming of LED current is achieved either by directly modulating the PWM input pins with the desired duty cycle, or using a SPI-programmable 10-bit PWM counter. The optional PDRV gate driver output can be used to drive an external P-Channel series MOSFET.
Features
AEC-Q100 grade 1 qualifiedWide input voltage range: 4.5V to 65V±4% LED current accuracy over –40°C to 150°C junction temperature RangeSPI communication interfaceSPI programmable featuresSpread spectrum for Improved EMISoft-start timingILED current and output voltage settingsCurrent limit, overvoltage, fault-timerSingle vs dual phaseCV and CC mode configuration
Applications
Automotive forward lightingEmergency vehicles
