参数资料
型号: TPS40077PWPRG4
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
封装: GREEN, PLASTIC, HTSSOP-16
文件页数: 43/43页
文件大小: 847K
代理商: TPS40077PWPRG4
100
1.5
0.5
200
300
400 500
600
700
800
900 1000
1.0
3.0
2.0
2.5
3.5
5.0
4.0
4.5
VIN = 28 V
VIN = 24 V
VIN = 18 V
VIN = 15 V
VIN = 12 V
VIN = 10 V
VIN = 8 V
VIN = 5 V
fOSC Oscillator Frequency kHz
V
O
U
T
Output
V
oltage
V
TJ Junction Temperature °C
I B
IA
S
Error
Amplifier
Input
Bias
Current
nA
50
25
50
100
125
0
25
75
0
90
80
70
10
30
60
20
40
50
RKFF Feedforward Impedance k
100
150
250
300
350
450
200
400
4
2
8
6
10
14
12
18
16
20
V
U
V
L
O
Programmable
UVLO
Threshold
V
UVLOVON
fSW = 300 kHz
UVLOVOFF
fSW Switching Frequency kHz
0
100
0
200
400
600
800
1000
200
300
400
500
600
R
T
T
iming
Resistance
k
G017
www.ti.com ..................................................................................................................................................... SLUS714D – JANUARY 2007 – REVISED APRIL 2009
TYPICAL CHARACTERISTICS (continued)
ERROR AMPLIFIER INPUT BIAS CURRENT
MINIMUM OUTPUT VOLTAGE
vs
JUNCTION TEMPERATURE
FREQUENCY
Figure 13.
Figure 14.
SWITCHING FREQUENCY
UNDERVOLTAGE LOCKOUT THRESHOLD
vs
TIMING RESISTANCE
FEED-FORWARD IMPEDANCE
Figure 15.
Figure 16.
Copyright 2007–2009, Texas Instruments Incorporated
9
Product Folder Link(s) :TPS40077
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