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The TPS92391RHBR is a dual-channel peak current mode controller with an SPI communication interface controller that is programmable to operate in constant voltage (CV) or constant current (CC) mode. In CV mode, the TPS92391RHBR can be programmed to operate as two independent or dual channel controllers. as two independent or dual-phase boost regulators. The output voltage is programmable via an external resistor divider and an SPI programmable 8-bit DAC. In CC mode, the device can support dual-channel boost or buck LED driver topologies.LED currents can be dimmed using analogue or PWM dimming techniques. The analogue dimming range exceeds 28:1. 8-bit DAC is programmable. PWM dimming of the LED current can be achieved by direct modulation of the PWM input pin or by using the SPI programmable 10-bit PWM counter. The optional PDRV gate driver output can be used to drive an external P-channel family of MOSFETs.The TPS92391RHBR integrates advanced SPI-programmable diagnostics and failsafe mechanisms including: cycle-by-cycle current limiting, output over- and under-voltage protection, ILED overcurrent protection, and thermal warning. The device also includes an open-drain fault indicator output.

Product Attributes

Type: DC DC Controller

Topology: SEPIC, Boost

Internal Switch: None

Number of Outputs: 6

Voltage - Supply (minimum): 3V

Voltage - Supply (Max): 5.5V

Voltage - Output: 0V ~ 48V

Current - Outputs/Channels: -

Frequency: 100kHz ~ 2.2MHz

Dimming: Analogue, I²C, PWM

Applications: Backlighting

Operating Temperature: -40°C ~ 125°C (TA)

Mounting Type: Surface Mount

Package/Housing: 32-VFQFN Exposed Pad

Supplier Device Package: 32-VQFN (5x5)

Applications

• Industrial backlighting systems in control panels

• Industrial computers

• Test and measurement equipment

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