TPS92682-Q1 Series

Dual channel constant-Voltage and constant current controller with SPI

Catalog

Dual channel constant-Voltage and constant current controller with SPI

Part	Operating Temperature [Min]	Operating Temperature [Max]	Applications	Number of Outputs	Qualification	Frequency [Min]	Frequency [Max]	Voltage - Output	Grade	Mounting Type	Supplier Device Package	Topology	Type	Voltage - Supply (Max) [Max]	Dimming	Voltage - Supply (Min) [Min]	Package / Case
Texas Instruments TPS92682EVM-070
Texas Instruments TPS92682QRHBRQ1	-40 °C	125 °C	Lighting	2	AEC-Q100	100 kHz	700 kHz	8.8 V	Automotive	Surface Mount Wettable Flank	32-VQFN (5x5)	Flyback SEPIC Step-Down (Buck) Step-Up (Boost)	DC DC Controller	65 V	Analog PWM SPI	6.5 V	32-VFQFN Exposed Pad
Texas Instruments TPS92682QRHMRQ1	-40 °C	125 °C	Lighting	2	AEC-Q100	100 kHz	700 kHz		Automotive	Surface Mount Wettable Flank	32-VQFN (5x5)	Flyback SEPIC Step-Down (Buck) Step-Up (Boost)	DC DC Controller	65 V	Analog PWM	6.5 V	32-VFQFN Exposed Pad

Catalog

Dual channel constant-Voltage and constant current controller with SPI

Key Features

• AEC-Q100 grade 1 qualifiedFunctional Safety-CapableDocumentation available to aid functional safety system designWide input voltage range: 4.5 V to 65 V± 4% LED current accuracy over –40°C to 150°C junction temperature rangeSPI communication interfaceSPI programmable features:Spread spectrum for improved EMISoft-start timingILED current and output voltage settingsCurrent limit, overvoltage, fault-timerSingle versus dual phaseCV and CC mode configurationDual channel peak-current-mode (PCM) controllerLow input offset rail-to-rail current sense amplifierAnalog dimmingExternal series FET PWM dimming with integrated P-channel driver interfaceOver 1000:1 PWM dimming rangeOpen-drain fault flag indicator per channelUp to 1-MHz programmable switching frequency with external clock synchronization capabilityComprehensive programmable fault protection circuitryWettable flank with VQFN packageAEC-Q100 grade 1 qualifiedFunctional Safety-CapableDocumentation available to aid functional safety system designWide input voltage range: 4.5 V to 65 V± 4% LED current accuracy over –40°C to 150°C junction temperature rangeSPI communication interfaceSPI programmable features:Spread spectrum for improved EMISoft-start timingILED current and output voltage settingsCurrent limit, overvoltage, fault-timerSingle versus dual phaseCV and CC mode configurationDual channel peak-current-mode (PCM) controllerLow input offset rail-to-rail current sense amplifierAnalog dimmingExternal series FET PWM dimming with integrated P-channel driver interfaceOver 1000:1 PWM dimming rangeOpen-drain fault flag indicator per channelUp to 1-MHz programmable switching frequency with external clock synchronization capabilityComprehensive programmable fault protection circuitryWettable flank with VQFN package

Description

The TPS92682-Q1 is a dual-channel, peak current-mode controller with SPI communication interface. The device is programmable to operate in constant-voltage (CV) or constant-current (CC) modes. In CV mode, 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. The TPS92682-Q1 incorporates an advanced SPI-programmable diagnostic and fault protection mechanism including: cycle-by-cycle current limit, output overvoltage and undervoltage protection, ILED overcurrent protection, and thermal warning. The device also includes an open-drain fault indicator output per channel. The TPS92682-Q1 includes an LH pin, when pulled high, initiates the limp home (LH) condition. In LH mode, the device uses a separate set of SPI-programmed registers. The TPS92682-Q1 is a dual-channel, peak current-mode controller with SPI communication interface. The device is programmable to operate in constant-voltage (CV) or constant-current (CC) modes. In CV mode, 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. The TPS92682-Q1 incorporates an advanced SPI-programmable diagnostic and fault protection mechanism including: cycle-by-cycle current limit, output overvoltage and undervoltage protection, ILED overcurrent protection, and thermal warning. The device also includes an open-drain fault indicator output per channel. The TPS92682-Q1 includes an LH pin, when pulled high, initiates the limp home (LH) condition. In LH mode, the device uses a separate set of SPI-programmed registers.