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CAT3626HV4-GT2

LED Driver IC 6 Output DC DC Regulator Switched Capacitor (Charge Pump) I2C Dimming 32mA 16-TQFN (4x4)

Manufacturer:

ON Semiconductor, LLC
Mfr.Part #:

CAT3626HV4-GT2
Datasheet:

CAT3626HV4-GT2 Datasheet (PDF)
Case Outline:

510AE
MSL Temp (°C):

260
Container Type:

REEL
Series:

CAT3626
EDA/CAD Models:

Request Free CAD Models for CAT3626HV4-GT2

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CAT3626HV4-GT2 General Description

The CAT3626 is a high efficiency 1x/1.5x fractional charge pump with programmable dimming current in six LED channels. To ensure uniform brightness in LCD backlight applications, each LED channel delivers an accurate regulated current.

Low noise and input ripple is achieved by operating at a constant switching frequency of 1MHz which allows the use of small external ceramic capacitors. The 1x/1.5x fractional charge pump supports a wide range of input voltages from 3V to 5.5V with efficiency up to 91%, and is ideal for Li-Ion battery powered devices.

The LED channels are configured into three independent pairs, each containing 2 matched channels. Each pair can be separately programmed from zero to 32 mA, in 0.5 mA resolution steps, using the I2C serial interface. Any individual channel can be disabled while others remain active. When the enable input (EN) is low, the device is in shutdown mode drawing zero current.

Key Features

Drives 6 LED channels
Independent current on 3 pairs of LEDs
I²C serial interface programming
Adjustable current to 32 mA in 0.5 mA steps
Power efficiency up to 91%
Fractional pump 1x/1.5x
Low noise input ripple
Fixed High Frequency Operation 1MHz
“Zero” Current Shutdown Mode
Soft start and current limiting
Short circuit protection
Thermal shutdown protection

Application

RGB LEDs
LCD and keypad Backlighting

Specifications

Status	Active	Case Outline	510AE
MSL Temp (°C)	260	Container Type	REEL
Product Category	LED Lighting Drivers	Series	CAT3626
Mounting Style	SMD/SMT	Number of Outputs	6 Output
Output Current	32 mA	Input Voltage, Min	3 V
Input Voltage, Max	5.5 V	Topology	Charge Pump
Operating Frequency	1.2 MHz	Output Voltage	7 V
Minimum Operating Temperature	- 40 C	Maximum Operating Temperature	+ 85 C
Features	Charge Pump	Input Voltage	3 V to 5.5 V
Number of Channels	6 Channel	Product Type	LED Lighting Drivers
Factory Pack Quantity	2000	Subcategory	Driver ICs
Supply Current - Max	3.5 mA	Unit Weight	0.001352 oz