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CAT3643HV3-T2 from CATALYST

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CAT3643HV3-T2

Manufacturer: CATALYST

3-Channel Ultra High Efficiency Quad-Mode TM LED Driver

Partnumber Manufacturer Quantity Availability
CAT3643HV3-T2,CAT3643HV3T2 CATALYST 3141 In Stock

Description and Introduction

3-Channel Ultra High Efficiency Quad-Mode TM LED Driver The CAT3643HV3-T2 is a high-efficiency, quad-mode LED charge pump manufactured by CATALYST SEMICONDUCTOR (now part of ON Semiconductor). Here are its key specifications:

1. **Input Voltage Range**: 2.7V to 5.5V  
2. **Output Current**: Up to 120mA (adjustable per LED)  
3. **LED Configuration**: Drives up to 4 LEDs in parallel  
4. **Efficiency**: Up to 92% (depending on mode)  
5. **Operating Modes**: 1x, 1.5x, 2x, and fractional charge pump modes for optimal efficiency  
6. **PWM Dimming**: Supports up to 50kHz for brightness control  
7. **Package**: 12-pin TDFN (3mm x 3mm)  
8. **Features**: Over-voltage protection, thermal shutdown, and low-noise operation  
9. **Applications**: Mobile phones, portable devices, backlighting  

For exact details, refer to the official datasheet from ON Semiconductor.

Partnumber Manufacturer Quantity Availability
CAT3643HV3-T2,CAT3643HV3T2 ON 3278 In Stock

Description and Introduction

3-Channel Ultra High Efficiency Quad-Mode TM LED Driver The CAT3643HV3-T2 is a high-efficiency, quad-mode LED charge pump from ON Semiconductor. Here are its key specifications:

- **Manufacturer**: ON Semiconductor  
- **Type**: LED Driver (Charge Pump)  
- **Input Voltage Range**: 2.5V to 5.5V  
- **Output Current**: Up to 30mA per LED (4 LEDs supported)  
- **Efficiency**: Up to 92%  
- **Switching Frequency**: 1MHz (typical)  
- **Modes of Operation**: 1x, 1.5x, 2x, and fractional charge pump modes for optimized efficiency  
- **Dimming Control**: I²C interface for precise brightness control  
- **Package**: 16-pin TQFN  
- **Operating Temperature Range**: -40°C to +85°C  
- **Features**: Soft-start, thermal shutdown, LED open/short protection  

This device is designed for backlighting in portable electronics such as smartphones and tablets.  

(Source: ON Semiconductor datasheet for CAT3643HV3-T2.)

Partnumber Manufacturer Quantity Availability
CAT3643HV3-T2,CAT3643HV3T2 CAT 176 In Stock

Description and Introduction

3-Channel Ultra High Efficiency Quad-Mode TM LED Driver The CAT3643HV3-T2 is a high-efficiency, quad-mode LED charge pump manufactured by ON Semiconductor. Here are its key specifications:

- **Manufacturer**: ON Semiconductor  
- **Type**: Quad-Mode LED Charge Pump  
- **Input Voltage Range**: 2.7V to 5.5V  
- **Output Current**: Up to 30mA per LED (4 channels)  
- **Efficiency**: Up to 92%  
- **Switching Frequency**: 1MHz (typical)  
- **Package**: 12-lead TDFN (3mm x 3mm)  
- **Features**:  
  - Automatic mode switching (1x, 1.5x, 2x, fractional modes)  
  - I²C-compatible interface for brightness control  
  - Low-noise operation  
  - Thermal shutdown protection  
  - Open/short LED protection  

- **Applications**:  
  - Backlighting for LCD displays  
  - Portable electronics  
  - Keypad illumination  

This device is designed for space-constrained, battery-powered applications requiring efficient LED driving.  

(Source: ON Semiconductor datasheet for CAT3643HV3-T2.)

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