CAT3649: LED Driver, 6-Channel, with 32 Dimming Levels and PWM
The CAT3649 is a high efficiency fractional charge pump that can drive up to six LEDs. The inclusion of a 1.33x fractional charge pump mode increases the device efficiency by up to 10% over traditional 1.5x charge pumps with no added external capacitors.Low noise input ripple is achieved by operating at a constant switching frequency which allows the use of small external ceramic capacitors. The multi-fractional charge pump supports a wide range of input voltages from 2.4 V to 5.5 V.The LED current can be adjusted in different ways. The full-scale LED current is set to 25 mA once the device is enabled. Analog dimming in 32 linear steps is achieved via a 1-wire pulse-dimming input (ADIM). Further adjustment of the LED current can be done by applying a pulse width modulation (PWM) signal on the PWM input. The PWM dimming control is compatible with content adaptive brightness control (CABC) for a wide range of PWM signal frequency up to 200 kHz.The CAT3649 can be shut down by holding the ADIM or PWM input in a logic low condition for greater than 30 ms.
特性
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应用
| 终端产品
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软件 (1)
| Document Title | Document ID/Size | Revision | Revision Date |
|---|---|---|---|
| CAT3649AGEVB Software | CAT3649AGEVB_SOFTWARE.ZIP (2888.0kB) | 0 |
封装图纸 (1)
| Document Title | Document ID/Size | Revision |
|---|---|---|
| TQFN16, 3x3 | 510AD (55.6kB) | A |
数据表 (1)
| Document Title | Document ID/Size | Revision | Revision Date |
|---|---|---|---|
| LED Driver , 6-Channel, with 32 Dimming Levels and PWM | CAT3649/D (303kB) | 3 | Aug, 2014 |
评估板文档 (5)
| Document Title | Document ID/Size | Revision | Revision Date |
|---|---|---|---|
| CAT3649AGEVB Bill of Materials ROHS Compliant | CAT3649AGEVB_BOM_ROHS.PDF (150.0kB) | 0 | |
| CAT3649AGEVB Gerber Layout Files (Zip Format) | CAT3649AGEVB_GERBER.ZIP (79.0kB) | 2 | |
| CAT3649AGEVB Manual | EVBUM2164/D (521.0kB) | 1 | |
| CAT3649AGEVB Schematic | CAT3649AGEVB_SCHEMATIC.PDF (251.0kB) | 0 | |
| CAT3649AGEVB Test Procedure | CAT3649AGEVB_TEST_PROCEDURE.PDF (116.0kB) | 0 |
评估板与开发工具
| 产品 | 状况 | Compliance | 简短说明 |
|---|---|---|---|
| CAT3649AGEVB | Active | Pb-free | High Efficiency Quad-Mode Fractional Charge Pump Evaluation Board |
产品订购型号
| 产品 | 状况 | Compliance | 封装 | MSL* | 容器 | 预算价格 (1千个数量的单价） | ||
|---|---|---|---|---|---|---|---|---|
| CAT3649HV3-GT2 | Active | Pb-free Halide free | TQFN-16 | 510AD | 1 | Tape and Reel | 2000 | $0.6667 |
订购产品技术参数
| Product | Topology | VIN Min (V) | VIN Max (V) | VO Max (V) | IO Max (mA) | fSW Typ (kHz) |
|---|---|---|---|---|---|---|
| CAT3649HV3-GT2 | Charge Pump | 2.4 | 5.5 | 6 | 25 | 1000 |
- CAT3649AGEVB SOFTWARE CAT3649AGEVB
- CAT3649AGEVB BOM ROHS CAT3649AGEVB
- CAT3649AGEVB GERBER CAT3649AGEVB
- EVBUM2164/D - 521 CAT3649AGEVB
- CAT3649AGEVB SCHEMATIC CAT3649AGEVB
- CAT3649AGEVB TEST PROCEDURE CAT3649AGEVB
- TQFN16, 3x3 CAT3661
- CAT3649
