TPS92690 Texas instruments

TPS92690

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TPS92690

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Описание

The TPS92690 device is a high-voltage, low-side NFET controller with an adjustable output current sense resistor voltage. Ideal for LED drivers, it contains all of the features needed to implement current regulators based on boost, SEPIC, flyback, and Cuk topologies. Output current regulation is based on peak current-mode control supervised by a control loop. This methodology eases the design of loop compensation while providing inherent input voltage feed-forward compensation. The TPS92690 device includes a high-voltage start-up regulator that operates over a wide input range between 4.5 and 75 V. The PWM controller is designed for high-speed capability including an oscillator frequency range up to 2 MHz. The TPS92690 device includes an error amplifier, precision reference, cycle-by-cycle current limit, and thermal shutdown.

Input Voltage Range from 4.5 to 75 V
Adjustable Current Sense (50 to 500 mV)
Low-Side Current Sensing
2-Ω MOSFET Gate Driver
Input Undervoltage Protection
Output Overvoltage Protection
Cycle-by-Cycle Current Limit
PWM Dimming Input
Programmable Oscillator Frequency
External Synchronization Capability
Slope Compensation
Programmable Soft-Start Function
HTSSOP (PWP), 16-Pin, Exposed Pad Package

Input voltage type	DC/DC
Topology	Boost, Boost Controller, Cuk, Flyback, SEPIC
Vin (min) (V)	4.5
Vin (max) (V)	75
Vout (max) (V)	72
Vout (min) (V)	3
Iout (max) (A)	5
Iq (typ) (mA)	2
Features	Adjustable Switch Frequency, Enable/Shutdown, Soft Start, Synchronization Pin, Thermal shutdown
Operating temperature range (°C)	-40 to 125
Dimming method	Analog, PWM
Number of channels	1
Rating	Catalog