Datasheet 搜索 > 音频放大器 > TI（德州仪器） > LM4940TSX/NOPB 数据手册 > LM4940TSX/NOPB 其他数据使用手册 5/22 页
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LM4940TSX/NOPB 其他数据使用手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
音频放大器
封装:
TO-263-9
描述:
6W立体声音频功率放大器 6W Stereo Audio Power Amplifier
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P2Hot
典型应用电路图在P1
原理图在P9
封装尺寸在P2P21
型号编码规则在P2P21
封装信息在P2
功能描述在P1P10
技术参数、封装参数在P4P6
应用领域在P1
电气规格在P3P4P6P7
导航目录
LM4940TSX/NOPB数据手册
Page:
of 22 Go
若手册格式错乱，请下载阅览PDF原文件
Symbol Parameter Conditions
Min(Note 7) Typ(Note 8) Max(Note 7)
Units
R
DPOL
DPOL Pullup Resistance
500 1200
KΩ
FAULT TIMER
V
FLTTH
Fault Threshold
1.185 1.240 1.285 V
I
FLT
Fault Pin Source Current
10 11.5 13 µA
ERROR AMPLIFIER
V
REF
CSH Reference Voltage With Respect to AGND 1.210
1.235 1.260 V
Error Amplifier Input Bias
Current
-0.6 0 0.6
µA
COMP Sink / Source Current 22 30 35
Transconductance 100 µA/V
Linear Input Range (Note 9) ±125 mV
Transconductance Bandwidth
(Note 9)
-6dB Unloaded Response
0.5 1.0
MHz
OFF TIMER
Minimum Off-time
RCT = 1V through 1kΩ
35 75
ns
R
RCT
RCT Reset Pull-down
Resistance
36 120
Ω
V
RCT
V
IN
/25 Reference Voltage V
IN
= 14V 540
565 585 mV
f Continuous Conduction
Switching Frequency
2.2nF > C
T
> 470pF
25/(C
T
R
T
)
Hz
PWM COMPARATOR
COMP to PWM Offset 700 800 900 mV
CURRENT LIMIT (IS)
I
LIM
Current Limit Threshold 200
245 300 mV
I
LIM
Delay to Output
35 75
ns
Leading Edge Blanking Time 115 210 325
HIGH SIDE TRANSCONDUCTANCE AMPLIFIER
Input Bias Current 11.5 µA
Transconductance 20 119 mA/V
Input Offset Current -1.5 0 1.5 µA
Input Offset Voltage -7 0 7 mV
Transconductance Bandwidth
(Note 9)
I
CSH
= 100µA
250 500 kHz
GATE DRIVER (GATE)
R
SRC(GATE)
GATE Sourcing Resistance GATE = High
2.0 6.0
Ω
R
SNK(GATE)
GATE Sinking Resistance GATE = Low
1.3 4.5
DIM DRIVER (DIM, DDRV)
nDIM
VTH
nDIM / UVLO Threshold 1.185
1.240 1.285 V
nDIM
HYS
nDIM Hysteresis Current 20
23 25 µA
R
SRC(DDRV)
DDRV Sourcing Resistance DDRV = High
13.5 30.0
Ω
R
SNK(DDRV)
DDRV Sinking Resistance DDRV = Low
3.5 10.0
PULL-DOWN N-CHANNEL MOSFETS
R
RPD
RPD Pull-down Resistance
145 300
Ω
R
FLT
FLT Pull-down Resistance
145 300
R
LRDY
LRDY Pull-down Resistance
135 300
THERMAL SHUTDOWN
T
SD
Thermal Shutdown Threshold
165
°C
T
HYS
Thermal Shutdown Hysteresis
25
THERMAL RESISTANCE
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