CAT4109 Series

LED Driver, RGB, 3-Channel

Catalog

LED Driver, RGB, 3-Channel

Part	Supplier Device Package	Package / Case	Package / Case [x]	Package / Case [y]	Dimming	Qualification	Type	Number of Outputs	Applications	Voltage - Supply (Max)	Mounting Type	Internal Switch(s)	Voltage - Supply (Min) [Min]	Voltage - Output	Current - Output / Channel [custom]	Operating Temperature [Max]	Operating Temperature [Min]	Grade
ON Semiconductor CAV4109V-GT2	16-SOIC	16-SOIC	0.154 in	3.9 mm	PWM	AEC-Q100	Linear	3	Backlight Lighting Signage	5.5 V	Surface Mount		3 V	25 V	175 mA	105 °C	-40 °C	Automotive

Catalog

LED Driver, RGB, 3-Channel

Key Features

• 3 independent current sinks up to 175 mA rated 25 V

• LED current set by external low power control resistors

• Individual PWM control per channel

• Low dropout current source (0.4 V at 175 mA)

• Output Enable input for dimming

• 'Zero' current shutdown mode

• 3 V to 5.5 V logic supply

• Thermal shutdown protection

Description

The CAT4109 is a 3-channel constant-current LED driver, requiring no inductor. LED channel currents up to 175 mA are programmed independently via separate external resistors. Low output voltage operation of 0.4 V at 175 mA allows for more power efficient designs across wider supply voltage range. The three LED pins are compatible with high voltage up to 25 V supporting applications with long strings of LEDs.Three independent control inputs PWM1, PWM2, PWM3, control respectivelly LED1, LED2, LED3 channels. The device also includes an output enable (OE) control pin to disable all three channels independently of the PWMx input states.Thermal shutdown protection is incorporated in the device to disable the LED outputs whenever the die temperature exceeds 150°C.