具有 1.5A 高侧电流源的 LM3648 同步升压 LED 闪光灯驱动器 12-DSBGA -40 to 85
The LM3648 is an LED flash driver that provides a high level of adjustability within a small solution size. The LM3648 utilizes a 2-MHz or 4-MHz fixed-frequency synchronous boost converter to provide power to the 1.5-A constant current LED source. An adaptive regulation method ensures the current source remains in regulation and maximizes efficiency.
Features of the LM3648 are controlled via an I2C-compatible interface. These features include: hardware flash and hardware torch pins STROBE and TORCH/TEMP, a TX interrupt, and an NTC thermistor monitor. The device offers 64 programmable currents in Flash and 128 levels in Movie Mode Torch condition.
The 2-MHz or 4-MHz switching frequency options, overvoltage protection OVP, and adjustable current limit allow for the use of tiny, low-profile inductors and 10-µF ceramic capacitors. The device operates over a –40°C to +85°C ambient temperature range.
型号 | 品牌 | 下载 |
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LM3648YFFR | TI 德州仪器 | 下载 |
LM3674MF-ADJ | National Semiconductor 美国国家半导体 | 下载 |
LM3671MF-ADJ | National Semiconductor 美国国家半导体 | 下载 |
LM3671MF-1.5EV | TI 德州仪器 | 下载 |
LM3677TL-1.8EV | TI 德州仪器 | 下载 |
LM3668SD-4550EV | TI 德州仪器 | 下载 |
LM3677LE-1.8EV | TI 德州仪器 | 下载 |
LM3678SD-1.2EV | TI 德州仪器 | 下载 |
LM3671MF-1.8EV | TI 德州仪器 | 下载 |
LM3673TL-1.5EV | TI 德州仪器 | 下载 |
LM3671LC-1.6EV | TI 德州仪器 | 下载 |