參數(shù)資料
型號: KA1M0680B
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 穩(wěn)壓器
英文描述: Fairchild Power Switch(SPS)(Fairchild 電源開關(guān))
中文描述: SWITCHING REGULATOR, 70 kHz SWITCHING FREQ-MAX, PSFM5
封裝: TO-3P, 5 PIN
文件頁數(shù): 1/14頁
文件大?。?/td> 87K
代理商: KA1M0680B
2000 Fairchild Semiconductor International
www.fairchildsemi.com
Rev. .5.0
Features
Precision fixed operating frequency
KA1M0680B,KA1M0680RB (67KHz)
KA1H0680B,KA1H0680RFB (100KHz)
Pulse by pulse over current limiting
Over load protection
Over voltage protection (Min. 23V)
Internal thermal shutdown function
Under voltage lockout
Internal high voltage sense FET
Latch up mode (KA1M0680B,KA1H0680B)
Auto restart (KA1M0680RB,KA1H0680RFB)
Soft start
Description
The SPS product family is specially designed for an off-line
SMPS with minimal external components. The SPS consist of
high voltage power SenseFET and current mode PWM Control-
ler IC. PWM controller features integrated fixed oscillator,
under voltage lock out, leading edge blanking, optimized gate
turn-on/turn-off driver, thermal shut down protection, over volt-
age protection, temperature compensated precision current
sources for loop compensation and fault protection circuit.
Compared to discrete MOSFET and controller or RCC switch-
ing converter solution, a SPS can reduce total component count,
design size, weight and at the same time increase & efficiency,
productivity, and system reliability. It has a basic platform well
suited for cost effective design in either a flyback converter or a
forward converter.
TO-3PF-5L
1.DRAIN 2.GND 3.V
CC
4.FB 5.Soft Start
TO-3P-5L
1
1
Internal Block Diagram
#3 V
CC
32V
5
μ
A
5V
2.5R
1R
1mA
9V
0.1V
+
OVER VOLTAGE S/D
+
7.5V
25V
Thermal S/D
S
R
Q
Power on reset
+
L.E.B
S
R
Q
OSC
5V
Vref
Internal
bias
Good
logic
SFET
#1 DRAIN
#2 GND
#4 FB
#5 Soft Start
KA1M0680B/KA1M0680RB/KA1H0680B/
KA1H0680RFB
Fairchild Power Switch(SPS)
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