參數(shù)資料
型號: TPS40075RHLTG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC20
封裝: PLASTIC, QFN-20
文件頁數(shù): 44/44頁
文件大小: 806K
代理商: TPS40075RHLTG4
www.ti.com
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
SLUS676A – MAY 2006 – REVISED SEPTEMBER 2007
TYPICAL CHARACTERISTICS (continued)
MAXIMUM DUTY CYCLE
UNDERVOLTAGE LOCKOUT
vs
JUNCTION TEMPERATURE
Figure 11.
Figure 12.
PROGRAMMABLE UVLO THRESHOLD
SOFTSTART CHARGING CURRENT
vs
JUNCTION TEMPERATURE
Figure 13.
Figure 14.
Copyright 2006–2007, Texas Instruments Incorporated
9
Product Folder Link(s) :TPS40075
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