LT3484-2 - LT3484-2是Photoflash Capacitor Charger
LT3484-2是Linear公司的一款照相机闪光灯电容器充电器产品，LT3484-2是Photoflash Capacitor Charger，本站介绍了LT3484-2的封装应用图解、特点和优点、功能等，并给出了与LT3484-2相关的凌力尔特元器件型号供参考。
LT3484-2 - Photoflash Capacitor Charger
LT3484-0 - Photoflash Capacitor Charger - Linear Technology（凌力尔特）
功能描述
The LT3484 family of photoflash capacitor charger ICs is designed for use in digital camera and mobile phone applications where space is at a premium. The LT3484's patented control technique allows it to use extremely small transformers, and the improved NPN power switch requires no external Schottky diode clamp, reducing solution size. Output voltage detection requires no external circuitry as the transformer turns ratio determines final charge voltage.
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应用
Digital Camera and Cell Phone Flash Charger以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）
| 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 | 2x3 DFN-6 | E | $3.14 | |
| LT3484EDCB-0#PBF | 2x3 DFN-6 | E | $3.14 | |
| LT3484EDCB-0#TR | 2x3 DFN-6 | E | $3.14 | $2.20 |
| LT3484EDCB-0#TRM | 2x3 DFN-6 | E | $3.14 | $2.22 |
| LT3484EDCB-0#TRMPBF | 2x3 DFN-6 | E | $3.14 | $2.22 |
| LT3484EDCB-0#TRPBF | 2x3 DFN-6 | E | $3.14 | $2.20 |
| LT3484EDCB-1 | 2x3 DFN-6 | E | $3.14 | |
| LT3484EDCB-1#PBF | 2x3 DFN-6 | E | $3.14 | |
| LT3484EDCB-1#TR | 2x3 DFN-6 | E | $3.14 | $2.20 |
| LT3484EDCB-1#TRM | 2x3 DFN-6 | E | $3.14 | $2.22 |
| LT3484EDCB-1#TRMPBF | 2x3 DFN-6 | E | $3.14 | $2.22 |
| LT3484EDCB-1#TRPBF | 2x3 DFN-6 | E | $3.14 | $2.20 |
| LT3484EDCB-2 | 2x3 DFN-6 | E | $3.14 | |
| LT3484EDCB-2#PBF | 2x3 DFN-6 | E | $3.14 | |
| LT3484EDCB-2#TR | 2x3 DFN-6 | E | $3.14 | $2.20 |
| LT3484EDCB-2#TRM | 2x3 DFN-6 | E | $3.14 | $2.22 |
| LT3484EDCB-2#TRMPBF | 2x3 DFN-6 | E | $3.14 | $2.22 |
| LT3484EDCB-2#TRPBF | 2x3 DFN-6 | E | $3.14 | $2.20 |
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