The TPS92691QPWPTQ1 is a general-purpose LED controller that supports a range of boost or buck driver topologies. The device implements a fixed-frequency peak-current-mode control technique with programmable switching frequency, slope compensation, and soft-start timing. It incorporates a high voltage (65V) rail-to-rail current sense amplifier, allowing direct measurement of LED current using a high-side or low-side series sense resistor. The amplifier can be used to achieve low input offset voltage with better than ±3% LED current accuracy over the 25°C to 140°C junction temperature range and 0 to 60V output common-mode voltage range.

The TPS92691QPWPTQ1 can individually modulate the LED current using analog or PWM dimming techniques. A linear analog dimming response with a 15:1 range is obtained by varying the voltage from 140mV to 2.25V over the high impedance analog adjust input (IADJ) range. PWM dimming of the LED current is achieved by modulating the PWM input pin to the desired duty cycle and frequency. Contrast ratios greater than 1000:1 can be achieved with series FET dimming using the optional DDRV gate driver output.

The TPS92691QPWPTQ1 supports continuous checking of LED status through a current monitor output. This enables short or open LED detection and protection. Additional fault protection features include VCC UVLO, output overvoltage protection (OVP), switch cycle-by-cycle current limit, and thermal protection.

Product Specifications:

Product Category: LED Lighting Drivers

RoHS: Details

Series: TPS92691-Q1

Installation style: SMD/SMT

Package / Box: HTSSOP-16

Number of outputs: 1 Output

Output current: 5A

Input voltage (min): 4.5 V

Input voltage (maximum): 65 V

Topology: Boost, Buck, Buck-Boost, Cuk, Flyback, SEPIC

Operating Frequency: 80kHz to 700kHz

Output voltage: 65V

Minimum working temperature: - 40 C

Maximum working temperature: + 125 C

Qualification: AEC-Q100

Package: Reel

Features: Adjustable Switch Frequency, Synchronization Pin, Thermal Shutdown

Trademark: Texas Instruments

Input voltage: 4.5V to 65V

Humidity Sensitivity: Yes

Number of channels: 1 Channel

Operating temperature range: - 40 C to + 125 C

Product Type: LED Lighting Drivers

Subcategory: Driver ICs

Supply Current—Maximum: 46 mA

Unit weight: 88 mg