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TLC5973 数据手册 - TI（德州仪器）
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TI（德州仪器）
描述:
三通道 12 位 PWM 恒流 LED 驱动器
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3D模型
符号图
焊盘图
引脚图
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页面导航:
引脚图在P3Hot
典型应用电路图在P22P24P26
原理图在P7P11
封装尺寸在P1P31P33P34
标记信息在P31
封装信息在P31P32P33P34
功能描述在P3P10P11P12
技术参数、封装参数在P3
应用领域在P11P22
电气规格在P5
导航目录
TLC5973数据手册
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TLC5973
ZHCSAX3B –MARCH 2013–REVISED MAY 2014
www.ti.com.cn
6.3 Recommended Operating Conditions
PARAMETER TEST CONDITIONS MIN NOM MAX UNIT
DC CHARACTERISTICS
No internal shunt regulator mode 3.0 5.0 5.5 V
V
CC
Supply voltage
Internal shunt regulator mode 6.0 V
V
O
Voltage applied to output OUT0 to OUT2 21 V
V
IH
High-level input voltage SDI 0.7 × V
CC
V
CC
V
V
IL
Low-level input voltage SDI GND 0.3 × V
CC
V
V
IHYST
Input voltage hysteresis SDI 0.2 × V
CC
V
I
OH
High-level output current SDO –2 mA
SDO 2 mA
I
OL
Low-level output current OUT0 to OUT2 (VCC ≤ 4.0 V) 2 35 mA
OUT0 to OUT2 (VCC > 4.0 V) 2 50 mA
I
REG
Shunt regulator sink current VCC 20 mA
T
A
Operating free-air temperature range –40 85 °C
T
J
Operating junction temperature range –40 125 °C
AC CHARACTERISTICS
f
CLK (SDI)
Data transfer rate SDI 100 3000 kHz
t
SDI
SDI input pulse duration SDI 60 0.5 / f
CLK
ns
t
WH
Pulse duration, high SDI 14 ns
t
WL
Pulse duration, low SDI 14 ns
t
H0
Hold time: end of sequence (EOS) SDI↑ to SDI↑ 3.5 / f
CLK
5.5 / f
CLK
ns
t
H1
Hold time: data latch (GSLAT) SDI↑ to SDI↑ 8 / f
CLK
ns
6.4 Thermal Information
TLC5973
THERMAL METRIC
(1)
D (SO) UNIT
8 PINS
R
θJA
Junction-to-ambient thermal resistance 134.6
R
θJC(top)
Junction-to-case (top) thermal resistance 88.6
R
θJB
Junction-to-board thermal resistance 75.3
°C/W
ψ
JT
Junction-to-top characterization parameter 37.7
ψ
JB
Junction-to-board characterization parameter 74.8
R
θJC(bot)
Junction-to-case (bottom) thermal resistance N/A
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
4 Copyright © 2013–2014, Texas Instruments Incorporated
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