| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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926 pcs
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926 pcs | On Request | 1 | On Request | On Request | 1409+ | On Request | On Request |
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| Halogen Free | |
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The CAT3644HV3-GT2 from ON Semiconductor is a high-efficiency, 4-channel LED driver that utilizes a fractional charge pump architecture. This device is designed to drive up to four LEDs, each capable of handling 25mA. It supports a wide input voltage range from 2.5V to 5.5V and offers multiple charge pump modes including 1x, 1.33x, 1.5x, and 2x, enhancing efficiency.
The driver features a 1-wire EZDim interface for digital current programming, allowing for flexible LED current setting with six different current ratios. It operates at a constant switching frequency between 1MHz and 1.3MHz, which helps in achieving low input ripple with small external ceramic capacitors. The device includes protection features such as soft start, current limiting, short circuit protection, and thermal shutdown protection.
Packaged in a compact 16-TQFN (3x3 mm) with an exposed pad, the CAT3644HV3-GT2 is suitable for space-constrained applications. Its primary application is in LCD display backlights for cellular phones, digital still cameras, and other handheld devices. The device is Pb-Free, Halogen Free/BFR Free, and RoHS Compliant.
Key electrical specifications include an input voltage range of 2.5V to 5.5V, an output current of 25mA per channel, and a switching frequency of 1MHz to 1.3MHz. The operating temperature range is -40°C to 85°C. The 16-WFQFN exposed pad package and surface mount type make it easy to integrate into various designs.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.17 | $0.17 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input voltage range is 2.5 V to 5.5 V.
It can drive up to 4 LEDs, each at 25 mA.
It supports 1x, 1.33x, 1.5x, and 2x charge pump modes.
The operating temperature range is -40°C to 85°C.
It is supplied in a 16-TQFN (3x3mm) package, also described as 16-WFQFN Exposed Pad.
Yes, the device is RoHS3 Compliant.
The Moisture Sensitivity Level is 1.