參數(shù)資料
型號(hào): TPS55383PWPRG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 7 A DUAL SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, PDSO16
封裝: PLASTIC, HTSSOP-26
文件頁(yè)數(shù): 4/45頁(yè)
文件大?。?/td> 1318K
代理商: TPS55383PWPRG4
BLOCK DIAGRAM
10
FB1
+
Soft Start
1
+
S
Q
R
+
Current
Comparator
BP
f(I
DRAIN1
) + DC(ofst)
2
1
3
Anti-Cross
Conduction
1.2 MHz
Oscilator
Divide
by 2/4
Ramp
Gen 1
Ramp
Gen 2
CLK1
CLK2
BP
CLK1
Weak
Pull-Down
MOSFET
5
EN1
6
EN2
6 mA
VDD2
Internal
Control
12
SEQ
150 kW
Output
Undervoltage
Detect
BP
FB1
FB2
CLK1
4
GND
8
FB2
+
Soft Start
2
+
S
Q
R
+
Current
Comparator
BP
15
16
14
Anti-Cross
Conduction
BP
CLK2
Weak
Pull-Down
MOSFET
13
BP
11
ILIM2
150 kW
BP
CLK2
9
COMP2
Level
Select
5.25-V
Regulator
References
BOOT1
PVDD1
SW1
BOOT2
PVDD2
SW2
f(I
DRAIN2
) + DC(ofst)
0.8 V
REF
I
MAX2
(Set to one of three limits)
f(I
DRAIN1
)
f(I
MAX1
)
Overcurrent Comp
f(I
SLOPE1
)
Level
Shift
Level
Shift
f(I
DRAIN2
)
f(I
MAX2
)
f(I
SLOPE2
)
FET
Switch
TSD
PVDD2
f(I
SLOPE1
)
f(I
SLOPE2
)
SD1
SD2
UVLO
0.8 V
REF
SD2
0.8 V
REF
SD1
UDG-08044
Overcurrent Comp
8
COMP1
SLUS818 – SEPTEMBER 2008 ......................................................................................................................................................................................... www.ti.com
12
Copyright 2008, Texas Instruments Incorporated
Product Folder Link(s): TPS55383 TPS55386
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