KA1M0380RB-TU FAIRCHILD [Fairchild Semiconductor], KA1M0380RB-TU Datasheet

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KA1M0380RB-TU

Manufacturer Part Number
KA1M0380RB-TU
Description
Fairchild Power Switch(SPS)
Manufacturer
FAIRCHILD [Fairchild Semiconductor]
Datasheet
Features
• Precision fixed operating frequency
• 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
• Auto restart (
Internal Block Diagram
©2000 Fairchild Semiconductor International
KA1L0380B/KA1L0380RB/KA1M0380RB/
KA1H0380RB
Fairchild Power Switch(SPS)
KA1L0380B/KA1L0380RB
KA1M0380RB
KA1H0380RB
#3 V
KA1L0380RB/KA1M0380RB/KA1H0380RB)
#4 FB
(100KHz)
(67KHz)
CC
(50KHz)
5 A
7.5V
25V
32V
+
+
1mA
OVER VOLTAGE S/D
2.5R
1R
9V
Thermal S/D
+
OSC
Vref
5V
0.1V
L.E.B
Good
logic
S
R
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.
Q
1. GND 2. DRAIN 3. V
Power on reset
TO-220F-4L
Internal
bias
1
S
R
Q
SFET
CC
4. FB
www.fairchildsemi.com
#2 DRAIN
#1 GND
Rev. .5.0

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KA1M0380RB-TU Summary of contents

Page 1

... 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 • Auto restart ( KA1L0380RB/KA1M0380RB/KA1H0380RB) Internal Block Diagram # 32V ...

Page 2

... KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB Absolute Maximum Ratings Parameter (1) Drain-source (GND) 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 Supply voltage Analog input voltage range Total power dissipation ...

Page 3

... Turn on delay time Rise time Turn off delay time Fall time Total gate charge (gate-source+gate-drain) Gate-source charge Gate-drain (Miller) charge Note: Pulse test: Pulse width 300 S, duty cycle --- - R KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB Symbol Condition BV V =0V, I =50 A DSS =Max., Rating =0V GS ...

Page 4

... These parameters, although guaranteed, are tested in EDS (wafer test) process 4 Symbol Condition Vref Ta=25 C Vref +85 C KA1L0380B KA1L0380RB F OSC KA1M0380RB KA1H0380RB ( +85 C KA1L0380B KA1L0380RB Dmax KA1M0380RB KA1H0380RB I Ta= Vfb 3V FB Idelay Ta= Vfb V I Max. inductor current L(max) Vth(H) - Vth(L) After turn =14V ...

Page 5

... Figure 1. Operating Frequency Fig.3 Operating Current 1.2 1.15 1.1 1.05 I Iop OPR 1 0.95 0.9 0.85 0.8 - Temperature [ Figure 3. Operating Current Fig.5 Start up Current 1.5 1.3 1 Istart 0.9 0.7 0.5 - Temperature [ Figure 5. Start up Current KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB 1.2 1.15 1.1 1.05 Ifb 1 0.95 0.9 0.85 0.8 -25 75 100 125 150 ] C Figure 2. Feedback Source Current 1.1 1.05 I Ipeak L(MAX) 1 0.95 0.9 0.85 0.8 100 125 150 - 1.15 1.1 1.05 V Vstart th(H) 1 ...

Page 6

... KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB 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

... Typical Performance Characteristics (These characteristic grahps are normalized at Ta=25 C) Fig.14 Drain Source Turn-on Resistance 2.5 2 1.5 Rdson 1 0 Temperature [ Figure 13. Drain Source Turn-on Resistance KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB (Continued) 75 100 125 150 ] C 7 ...

Page 8

... KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB Package Dimensions 8 TO-220F-4L ...

Page 9

... Package Dimensions (Continued) KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB TO-220F-4L (Forming) 9 ...

Page 10

... KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB Ordering Information Product Number Package KA1L0380B-TU TO-220F-4L KA1L0380B-YDTU TO-220F-4L(Forming) KA1L0380RB-TU TO-220F-4L KA1L0380RB-YDTU TO-220F-4L(Forming) KA1M0380RB-TU TO-220F-4L KA1M0380RB-YDTU TO-220F-4L(Forming) KA1H0380RB-TU TO-220F-4L KA1H0380RB-YDTU TO-220F-4L(Forming Non Forming Type YDTU : Forming Type 10 Rating Fosc 800V, 3A 50kHz 800V, 3A 50kHz 800V, 3A 67kHz 800V, 3A ...

Page 11

... KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB 11 ...

Page 12

... KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB 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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