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P2172 PDF даташит

Спецификация P2172 изготовлена ​​​​«Unisonic Technologies» и имеет функцию, называемую «1.25A HIGH EFFICIENCY SWITCHING REGULATORS».

Детали детали

Номер произв P2172
Описание 1.25A HIGH EFFICIENCY SWITCHING REGULATORS
Производители Unisonic Technologies
логотип Unisonic Technologies логотип 

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P2172 Даташит, Описание, Даташиты
UNISONIC TECHNOLOGIES CO., LTD
P2172
Preliminary
LINEAR INTEGRATED CIRCUIT
100KHZ, 1.25A HIGH
EFFICIENCY SWITCHING
REGULATORS
„ DESCRIPTION
The UTC P2172 is monolithic high power switching regulators.
It can be operated in all standard switching configurations
including boost, buck, fly-back, forward, inverting and “Cuk.”
By utilizing current-mode switching techniques, they provide
excellent AC and DC load and line regulation.
„ FEATURES
* Wide Input Voltage Range: 3V~60V
* Low Quiescent Current: 6mA
* Very Few External Parts Required
* Self-Protected Against Overloads
* Operates in Nearly All Switching Topologies
* Flyback-Regulated Mode Has Fully Floating Outputs
* Can Be Externally Synchronized
„ ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
P2172L-D08-T
P2172G-D08-T
Package
DIP-8
P2172G-D08-T
(1)Packing Type
(2)Package Type
(3)Halogen Free
(1) T: Tube
(2) D08: DIP-8
(3) L: Lead Free, G: Halogen Free
DIP-8
Packing
Tube
www.unisonic.com.tw
Copyright © 2013 Unisonic Technologies Co., Ltd
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P2172 Даташит, Описание, Даташиты
P2172
„ PIN CONFIGURATION
Preliminary
LINEAR INTEGRATED CIRCUIT
„ PIN DESCRIPTION
PIN NO.
1
2
3
4
5
6
7
8
PIN NAME
GND
VC
FB
NC
VIN
E1
VSW
E2
DESCRIPTION
Signal ground. Keep separate from power grounds (E1 and E2).
Output of transconductance error amplifier.
Error amplifier inverting input.
Not connect
Input supply voltage
Power return of first transistor (Q1). This pin must be connected to ground
Collector of output transistors.
Grounding this pin sets the current limit point to the maximum value. If pin is left open, the
current limit is set to half its maximum value
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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P2172 Даташит, Описание, Даташиты
P2172
Preliminary
LINEAR INTEGRATED CIRCUIT
„ BLOCK DIAGRAM
VIN VSW
5 16V 7
2.3V
REG
2.3V
UVLO
FLY-BACK
EA
OSC
LOGIC
DRIVER
Q1
Q2
FB 3
MODE
SELECT
PWM
1.24V
-
EA
+
S.D.
COMP
0.15V
ANTISAT
+
SENSE
-
0.16Ω
0.16Ω
1
GND
2
VC
68
E1 E2
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R103-067.a










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Номер в каталогеОписаниеПроизводители
P21721.25A HIGH EFFICIENCY SWITCHING REGULATORSUnisonic Technologies
Unisonic Technologies

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