LT3484-0 - Photoflash Capacitor Charger
The devices feature a VBAT pin, which allows the use of 2 alkaline cells to charge the capacitor. The LT3484-0, -2 and -1 have primary current limits of 1.4A, 1A and 0.7A respectively, resulting in tightly controlled average input current of 500mA, 350mA and 225mA respectively. The three versions are otherwise identical.
The CHARGE pin gives full control of the part to the user. Driving CHARGE low puts the part in shutdown. The DONE pin indicates when the part has completed charging. The LT3484 series of parts are housed in a tiny low profile 2mm × 3mm DFN package.
特点- Highly Integrated IC in 2mm × 3mm DFN Package Reduces Solution Size
- Uses Small Transformers:
- 5.8mm × 5.8mm × 3mm
- Fast Photoflash Charge Times: 4.6s for LT3484-0 (0V to 320V, 100µF, VIN = 3.6V) 5.7s for LT3484-2 (0V to 320V, 100µF, VIN = 3.6V) 5.5s for LT3484-1 (0V to 320V, 50µF, VIN = 3.6V)
- Operates from Two AA Batteries, or Any Supply from 1.8V up to 16V
- Controlled Average Input Current 500mA (LT3484-0) 350mA (LT3484-2) 225mA (LT3484-1)
- No Output Voltage Divider Needed
- No External Schottky Diode Required
- Charges Any Size Photoflash Capacitor
- Available in 6-Lead 2mm × 3mm DFN Package
典型应用
 | 应用- Digital Camera and Cell Phone Flash Charger
封装信息 |
Order Information 订购型号| 器件型号 | 封装 | 温度 | 价格 (以 1 ~ 99 片为批量) | 价格 (以 1000 片为批量) * |
|---|
| LT3484EDCB-0#PBF | 2x3 DFN-6 | E | $3.14 | |
| LT3484EDCB-0#TRMPBF | 2x3 DFN-6 | E | $3.14 | $2.22 |
| LT3484EDCB-0#TRPBF | 2x3 DFN-6 | E | $3.14 | $2.20 |
| LT3484EDCB-1#PBF | 2x3 DFN-6 | E | $3.14 | |
| LT3484EDCB-1#TRMPBF | 2x3 DFN-6 | E | $3.14 | $2.22 |
| LT3484EDCB-1#TRPBF | 2x3 DFN-6 | E | $3.14 | $2.20 |
| LT3484EDCB-2#PBF | 2x3 DFN-6 | E | $3.14 | |
| LT3484EDCB-2#TRMPBF | 2x3 DFN-6 | E | $3.14 | $2.22 |
| LT3484EDCB-2#TRPBF | 2x3 DFN-6 | E | $3.14 | $2.20 |
演示电路板
| 器件型号 | 描述 | 价格 |
|---|
| DC855A-A | LT3484EDCB-0 | Photoflash Charger, Vin=2.8V-4.2V, Vbat=1.8V-4.2V, 5V Max | $100.00 |
| DC855A-B | LT3484EDCB-1 | Photoflash Charger, Vin=2.8V-4.2V, Vbat=1.8V-4.2V, 5V Max | 联系凌力尔特 |
| DC855A-C | LT3484EDCB-2 | Photoflash Charger, Vin=2.8V-4.2V, Vbat=1.8V-4.2V, 5V Max | $100.00 |
数据表可靠性数据LT Journal产品新闻发布CAD 符号LTspice | 相关产品 |
