TPS92070 LED Lighting Controller

Texas Instruments' high-efficiency integrated dimming LED lighting controller

Texas Instruments' TPS92070 is an advanced PWM controller ideal for use in low-power, offline, LED lighting applications. The integrated dimming interface circuit of the TPS92070 features a non‐dissipative dimmer trigger control circuit. The TPS92070 controller provides DC LED current with no photometric ripple effects. The DC current also results in higher efficacy of the LEDs. The TPS92070 provides exponentially controlled light output based on the external dimmer position. High power factor is achieved with a valley fill circuit. Once a leading-edge dimmer is detected, the TPS92070 sets an output to disable the PFC circuit and thus optimizes driver operation. The LED current sense precision error amplifier implements deep dimming. TPS92070 Datasheet

Product Training Module - TPS92070 LED Controller

Features and Applications

Advanced integrated dimming interface
Non-dissipative TRIAC dimmer management
Lamp-to-lamp uniformity during dimming
No low-frequency photometric ripple
Exponential dimming profile
Innovative secondary-side feedback eliminates optocoupler devices
LED current regulation better than 5%
Programmable minimum LED current
Valley switching and DCM operation for reduced EMI and improved efficiency
Leading edge dimmer detection

Power factor > 0.8
Cycle-by-cycle current limit protection
Low start-up and standby currents
Integrated PWM MOSFET driver
Thermal shutdown
16-pin, TSSOP package

Applications

LED light bulb replacement
LED luminaires
LED downlights
LED wall washers

Buy Now

Texas Instruments Part Number	Digi-Key Part Number	Packaging	Voltage - Supply	Package
TPS92070PWR	296-29546-2-ND	Tape & Reel	9 V ~ 21.5 V	16-TSSOP (0.173", 4.40 mm width)
	296-29546-1-ND	Cut Tape
	296-29546-6-ND	Digi-Reel®

Evaluation Module

Texas Instruments Part Number	Digi-Key Part Number	Description
TPS92070EVM-648	296-29683-ND	This evaluation module uses the TPS92070 high efficiency integrated dimming LED lighting driver controller in a low power offline flyback converter to provide 370 mA to the on-board LED load. The input accepts a nominal 50 Hz, 230 VAC input voltage. The TPS92070EVM-648 is designed to be used with a leading edge triac dimmer switch in series with the input voltage to control the lumen output of the LEDs. The integrated dimming interface circuit on the TPS92070 provides exponentially controlled light output based on the external dimmer position.

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