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器件3D模型￥ 32.328
TLC5947DAPR 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
LED驱动器
封装:
HTSSOP-32
描述:
24通道，12位PWM LED驱动器，内部振荡器 24-Channel, 12-Bit PWM LED Driver with Internal Oscillator
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P3P4Hot
典型应用电路图在P18
原理图在P11P12P20
封装尺寸在P23P25P26
标记信息在P23P24
封装信息在P22P23P24P25P26
技术参数、封装参数在P4
应用领域在P1P33
电气规格在P6
导航目录
TLC5947DAPR数据手册
Page:
of 33 Go
若手册格式错乱，请下载阅览PDF原文件
P =(V I )+(V I )´
D CC CC OUT
OLC
´ ´ ´N d
PWM
TLC5947
www.ti.com
SBVS114B –JULY 2008–REVISED JANUARY 2015
11.3 Power Dissipation
The device power dissipation must be below the power dissipation rate of the device package (illustrated in
Figure 5) to ensure correct operation. Equation 4 calculates the power dissipation of the device:
where
• V
CC
= device supply voltage
• I
CC
= device supply current
• V
OUT
= OUTn voltage when driving LED current
• I
OLC
= LED current adjusted by R
IREF
resistor
• N = number of OUTn driving LED at the same time
• d
PWM
= duty ratio defined by GS value (4)
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