TLC5947DAPR 供应商
-
TLC5947DAPR
品牌：TI 封装/批号：HTSSOP-32/21+
TLC5947DAPR 属性参数
- 标准包装：2,000
- 类别：集成电路 (IC)
- 家庭：PMIC - LED 驱动器
- 系列：-
- 恒定电流：是
- 恒定电压：-
- 拓扑：PWM
- 输出数：24
- 内部驱动器：是
- 类型 - 主要：背光
- 类型 - 次要：-
- 频率：4MHz
- 电源电压：3 V ~ 5.5 V
- 输出电压：30V
- 安装类型：表面贴装
- 封装/外壳：32-TSSOP（0.240"，6.10mm 宽）裸露焊盘
- 供应商设备封装：32-HTSSOP
- 包装：带卷 (TR)
- 工作温度：-40°C ~ 85°C
产品特性
- 24 Channels, Constant-Current Sink Output
- 30-mA Capability (Constant-Current Sink)
- 12-Bit (4096 Steps) PWM Grayscale Control
- LED Power-Supply Voltage Up to 30 V
- VCC = 3.0 V to 5.5 V
- Constant-Current Accuracy: Channel-to-Channel = ±2% (Typical) Device-to-Device = ±2% (Typical)
- Channel-to-Channel = ±2% (Typical)
- Device-to-Device = ±2% (Typical)
- CMOS Logic Level I/O
- 30-MHz Data Transfer Rate (Standalone)
- 15-MHz Data Transfer Rate (Cascaded Devices, SCLK Duty = 50%)
- Shift Out Data Changes With Falling Edge to Avoid Data Shift Errors
- Auto Display Repeat
- 4-MHz Internal Oscillator
- Thermal Shutdown (TSD): Automatic Shutdown at OverTemperature Conditions Restart Under Normal Temperature
- Automatic Shutdown at OverTemperature Conditions
- Restart Under Normal Temperature
- Noise Reduction: 4-Channel Grouped Delay to Prevent Inrush Current
- 4-Channel Grouped Delay to Prevent Inrush Current
- Operating Temperature: –40°C to 85°C
产品概述
The TLC5947 is a 24-channel, constant-current sink LED driver. Each channel is
individually adjustable with 4096 pulse-width modulated (PWM) steps. PWM control is repeated
automatically with the programmed grayscale (GS) data. GS data are written via a serial interface
port. The current value of all 24 channels is set by a single external resistor.The TLC5947 has a thermal shutdown (TSD) function that turns off all output drivers
during an over-temperature condition. All of the output drivers automatically restart when the
temperature returns to normal conditions.
TLC5947DAPR 电路图
