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: 42/43页
文件大小: 847K
代理商: TPS40077PWPRG4
50
25
50
100
125
0
25
75
4.35
3.90
4.20
3.95
4.30
4.15
4.05
4.00
4.25
4.10
TJ Junction Temperature °C
V
U
V
L
O
Undervoltage
Lockout
Threshold
V
VUVLO(on)
VUVLO(off)
TJ Junction Temperature °C
D
M
A
X
Maximum
Duty
Cycle
%
50
25
50
100
125
0
25
75
93
83
90
84
86
92
89
87
85
91
88
fSW = 100 kHZ
fSW = 500 kHZ
fSW = 1 MHZ
50
25
50
100
125
0
25
75
1.10
0.90
1.04
0.92
0.96
1.08
1.02
0.98
0.94
1.06
1.00
TJ Junction Temperature °C
V
U
V
L
O
Relative
Programmable
UVLO
Threshold
%
VUVLO(on)
VUVLO(off)
TJ Junction Temperature °C
I S
S
SoftStart
Charging
Current
A
50
25
50
100
125
0
25
75
14.0
10.0
10.5
11.0
13.5
12.5
11.5
13.0
12.0
SLUS714D – JANUARY 2007 – REVISED APRIL 2009 ..................................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS (continued)
MAXIMUM DUTY CYCLE
UNDERVOLTAGE LOCKOUT
vs
JUNCTION TEMPERATURE
Figure 9.
Figure 10.
PROGRAMMABLE UVLO THRESHOLD
SOFT-START CHARGING CURRENT
vs
JUNCTION TEMPERATURE
Figure 11.
Figure 12.
8
Copyright 2007–2009, Texas Instruments Incorporated
Product Folder Link(s) :TPS40077
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