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CAT3626HV4-GT2

LED Driver, Charge Pump, 3V to 5.5V input, 6 Outputs, 1 MHz switch-freq., 32 mA out, TQFN-16

ON SEMICONDUCTOR CAT3626HV4-GT2

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Manufacturer Part No:
CAT3626HV4-GT2
Newark Part No.:
29X5992
Technical Datasheet:
CAT3626HV4-GT2   Datasheet
See all Technical Docs

Product Information

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:
Charge Pump

:
3V

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5.5V

:
4.2V

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32mA

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1MHz

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6Outputs

:
SMD

:
TQFN

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16Pins

:
-40°C

:
85°C

:
-

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-

:
-
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Technical Docs (1)

Product Overview

The CAT3626HV4-GT2 is a 6-channel LED Driver with I²C serial interface programming. The 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 3 to 5.5V with efficiency up to 91% and is ideal for Li-ion battery-powered device. The LED channels are configured into three independent pairs, each containing 2 matched channels. Each pair can be separately programmed from zero to 32mA, in 0.5mA 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.
  • Independent current on 3 pairs of LEDs
  • Power efficiency up to 91%
  • Fractional pump 1x/1.5x
  • Low noise input ripple
  • Zero current shutdown mode
  • Soft start and current limiting
  • Short-circuit protection
  • Thermal shutdown protection

Applications

Consumer Electronics, Automotive, Industrial, Power Management

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