16通道, 12位PWM LED驱动器, 6位点校正和预充电FET 16-Channel, 12-Bit PWM LED Driver with 6-Bit Dot Correction and Pre-Charge FET
The TLC5944 is a 16-channel, constant current sink driver. Each channel is individually adjustable with 4096 pulse-width modulated PWM steps and 64 constant sink current dot correction steps. The dot correction DC adjusts for brightness variations between LEDs. Both grayscale GS control and DC are accessible via a common serial interface port. The maximum current value of all 16 channels can be set by a single external resistor.
The TLC5944 has an internal pre-charge FET to prevent the ghost-lighting phenomenon that occurs on multiplexed LED systems. The TLC5944 has three error detection circuits for LED open detection LOD, a thermal error flag TEF, and a pre-thermal warning PTW. The LOD detects a broken or disconnected LED, and a shorted LED to GND during the display period. The TEF indicates a too-high temperature condition; when the TEF is set, all output drivers are turned off by the thermal shutdown TSD protection. Additionally, when the TEF is cleared, all output drivers are restarted. The PTW indicates that the IC is operating in a high temperature condition. The output drivers remain on when PTW is set.
频率 30 MHz
输出接口数 16
输入电压DC 3.00V ~ 5.50V
输出电压 3V ~ 15V
输出电流 60 mA
供电电流 60000 mA
耗散功率 3958 W
开关频率 30 MHz
输入电压Max 5.5 V
输入电压Min 3 V
工作温度Max 85 ℃
工作温度Min -40 ℃
耗散功率Max 3958 mW
电源电压 3V ~ 5.5V
安装方式 Surface Mount
引脚数 28
封装 HTSSOP-28
封装 HTSSOP-28
工作温度 -40℃ ~ 85℃ TA
产品生命周期 Active
包装方式 Cut Tape CT
制造应用 标牌
RoHS标准 RoHS Compliant
含铅标准 Lead Free
REACH SVHC版本 2015/06/15
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
TLC5944PWPR TI 德州仪器 | 当前型号 | 当前型号 |
TLC5944PWPRG4 德州仪器 | 完全替代 | TLC5944PWPR和TLC5944PWPRG4的区别 |
TLC5944PWP 德州仪器 | 类似代替 | TLC5944PWPR和TLC5944PWP的区别 |