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KA1M0880 데이터시트 PDF




Fairchild에서 제조한 전자 부품 KA1M0880은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 KA1M0880 기능
기능 SPS
제조업체 Fairchild
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KA1M0880 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




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KA1M0880 데이터시트, 핀배열, 회로
KA1L0880B/KA1M0880B
Fairchild Power Switch(FPS)
www.fairchildsemi.com
Features
• Precision fixed operating frequency
• KA1L0880B(50KHz),KA1M0880B(67KHz)
• 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
• Soft start
Description
The Fairchild Power Switch(FPS) product family is specially
designed for an off-line SMPS with minimal external
components. The Fairchild Power Switch(FPS) consist of high
voltage power SenseFET and current mode PWM controller 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 voltage
protection, temperature compensated precision current sources
for loop compensation and fault protection circuit. compared to
discrete MOSFET and controller or RCC switching converter
solution, a Fairchild Power Switch(FPS) 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-3P-5L
Internal Block Diagram
1
1. DRAIN 2. GND 3. VCC 4. FB 5. S/S
#3 VCC
#5 Soft Start
#4 FB
32V 5V Internal
Vref bias
Good
logic
5V
5µA
7.5V
25V
1mA 2.5R
9V 1R
+
OSC
+
S
Q
R
L.E.B
0.1V
+ Thermal S/D
OVER VOLTAGE S/D
S
Q
R
Power on reset
©2001 Fairchild Semiconductor Corporation
SFET
#1 DRAIN
#2 GND
Rev.1.0.2




KA1M0880 pdf, 반도체, 판매, 대치품
KA1L0880B/KA1M0880B
Electrical Characteristics (CONTROL part)
(Ta=25°C unless otherwise specified)
Parameter
Symbol
Condition
Min.
UVLO SECTION
Start threshold voltage
VSTART - 14
Stop threshold voltage
VSTOP After turn on
9
OSCILLATOR SECTION
Initial accuracy
Frequency change with temperature (2)
FOSC
F/T
KA1L0880B
KA1M0880B
25°C Ta +85°C
45
61
-
Maximum duty cycle
Dmax
74
FEEDBACK SECTION
Feedback source current
IFB Ta=25°C, 0V Vfb 3V 0.7
Shutdown Feedback voltage
VSD
- 6.9
Shutdown delay current
Idelay Ta=25°C, 5V Vfb VSD 4.0
SOFT START SECTION
Soft Start Voltage
VSS
VFB =2V
4.7
Soft Start Current
ISS Sync & S/S=GND
0.8
REFERENCE SECTION
Output voltage (1)
Temperature Stability (1)(2)
Vref
Vref/T
Ta=25°C
25°C Ta +85°C
4.80
-
CURRENT LIMIT (SELF-PROTECTION) SECTION
Peak Current Limit
IOVER Max. inductor current
4.40
PROTECTION SECTION
Thermal shutdown temperature (Tj) (1)
TSD
- 140
Over voltage protection voltage
VOVP
- 23
TOTAL DEVICE SECTION
Start Up current
ISTART VCC=14V
0.1
Operating supply current
(control part only)
IOP Ta=25°C
6
VCC zener voltage
VZ ICC=20mA
30
Typ.
15
10
50
67
±5
77
0.9
7.5
5.0
5.0
1.0
5.00
0.3
5.00
160
25
0.3
12
32.5
Max. Unit
16 V
11 V
55
kHz
73
±10 %
80 %
1.1 mA
8.1 V
6.0 µA
5.3 V
1.2 mA
5.20 V
0.6 mV/°C
5.60 A
- °C
28 V
0.45 mA
18 mA
35 V
Note:
1. These parameters, although guaranteed, are not 100% tested in production
2. These parameters, although guaranteed, are tested in EDS (wafer test) process
4

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KA1M0880 전자부품, 판매, 대치품
Typical Performance Characteristics (Continued)
(These characteristic grahps are normalized at Ta=25°C)
KA1L0880B/KA1M0880B
1.15
1.1
1.05
Vss 1
0.95
0.9
0.85
-25
Fig.13 Soft Start Voltage
0 25 50 75 100 125 150
Temperature [°C]
Figure 13. Soft Start Voltage
Fig.14 Drain Source Turn-on
Res is tance
2.5
2
1.5
Rds(on)1
0.5
0
-25 0 25 50 75 100 125 150
Temperature [°C]
Figure 14. Static Drain Source on Resistance
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관련 데이터시트

부품번호상세설명 및 기능제조사
KA1M0880

Fairchild Power Switch(FPS)

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KA1M0880

SPS

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