KA1M0880D-TU FAIRCHILD [Fairchild Semiconductor], KA1M0880D-TU Datasheet

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KA1M0880D-TU

Manufacturer Part Number
KA1M0880D-TU
Description
Power Switch(FPS)
Manufacturer
FAIRCHILD [Fairchild Semiconductor]
Datasheet
Features
• Precision fixed operating frequency
• KA1M0880D(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
Internal Block Diagram
©2001 Fairchild Semiconductor Corporation
KA1M0880D
Fairchild Power Switch(FPS)
#5 Soft Start
#3 V
#4 FB
CC
5V
5 A
7.5V
25V
32V
1mA
+
+
9V
2.5R
OVER VOLTAGE S/D
1R
Thermal S/D
+
OSC
Vref
5V
0.1V
L.E.B
Good
logic
Description
The Faiechild Power Switch(FPS) product family is specially
designed for an off line SMPS with minimal external
components. The Faiechild 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 R
solution, a Faiechild 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.
S
R
1. DRAIN 2. GND 3. V
Q
TO-3P-5L
Power on reset
Internal
bias
1
S
R
Q
CC
4. FB 5. S/S
SFET
www.fairchildsemi.com
CC
switching converter
#1 DRAIN
#2 GND
Rev.1.0.2

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KA1M0880D-TU Summary of contents

Page 1

... KA1M0880D Fairchild Power Switch(FPS) Features • Precision fixed operating frequency • KA1M0880D(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 • ...

Page 2

... KA1M0880D Absolute Maximum Ratings Parameter (1) Maximum Drain voltage Drain-Gate voltage (R = Gate-source (GND) voltage (2) Drain current pulsed Single pulsed avalanche energy (4) Avalanche current Continuous drain current (T = Continuous drain current (T =100 C) C Maximum Supply voltage Input voltage range Total power dissipation ...

Page 3

... GS DS Coss f=1MHz Crss t V =0.5BV d(on) DD DSS (MOSFET switching tr time are essentially t d(off) independent of tf operating temperature) V =10V, I =8.0A =0.5BV DS DSS switching time are Qgs essentially independent of Qgd operating temperature) 2% KA1M0880D Min. Typ. Max. 800 - - - - 200 - 1.2 1.5 1.5 2 2460 - - 210 - - =8. ...

Page 4

... Shutdown Feedback voltage Notes: 1. These parameters, although guaranteed, are not 100% tested in production 2. These parameters, although guaranteed, are tested in EDS (wafer test) process 4 Symbol Condition V - START V After turn on STOP F KA1M0880D OSC ( +85 C Dmax - I Ta= Vfb FB Idelay Ta= Vfb V ...

Page 5

... C 1.15 1.1 1.05 V th(H) Vstart 1 0.95 0.9 0.85 100 125 150 ] C Figure 6. Start Threshold Voltage KA1M0880D Fig.2 Feedback Source Current 100 125 150 Temperature [ ] C Fig.4 Max Inductor Current 100 125 150 Temperature [ ] C Figure 4. Peak Current Limit Fig.6 Start Threshold Voltage ...

Page 6

... KA1M0880D Typical Performance Characteristics (These characteristic graphs are normalized at Ta=25 C) Fig.7 Stop Threshold Voltage 1.15 1.1 1.05 V Vstop th(L) 1 0.95 0.9 0.85 - Temperature [ Figure 7. Stop Threshold Voltage Fig.9 Vcc Zener Voltage 1.2 1.15 1.1 1. 0.95 0.9 0.85 0.8 - Temperature [ Figure 9. V Zener Voltage CC Fig.11 Shutdown Delay Current 1.2 1.15 1.1 1.05 Idelay 1 0.95 0.9 0.85 0.8 -25 ...

Page 7

... Ta=25 C) Fig.13 Soft Start Voltage 1.15 1.1 1.05 Vss 1 0.95 0.9 0.85 - Temperature [ Figure 13. Soft Start Voltage (Continued) 2.5 2 1.5 Rdson 0.5 0 100 125 150 ] C Figure 14. Static Drain-Source on Resistance KA1M0880D Fig.14 Drain Source Turn-on Resistance - 100 125 150 Temperature [ ] C 7 ...

Page 8

... KA1M0880D Package Dimensions 8 TO-3P-5L ...

Page 9

... Package Dimensions (Continued) TO-3P-5L (Forming) KA1M0880D 9 ...

Page 10

... KA1M0880D Ordering Information Product Number Package KA1M0880D-TU TO-3P-5L KA1M0880D-YDTU TO-3P-5L(Forming Non Forming Type YDTU : Forming type DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS ...

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