ka5s0965tu Fairchild Semiconductor, ka5s0965tu Datasheet

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ka5s0965tu

Manufacturer Part Number
ka5s0965tu
Description
Power Switch Fps
Manufacturer
Fairchild Semiconductor
Datasheet
Features
• Wide Operating Frequency Range Up to 150kHz
• Lowest Cost SMPS Solution
• Lowest External Components
• Low Start-up Current (Max:170 A)
• Low Operating Current (Max:12mA)
• Internal High Voltage SenseFET
• Over Voltage Protection With Latch Mode (Min23V)
• Over Load Protection With Latch Mode
• Over Current Protection With Latch Mode
• Internal Thermal Protection With Latch Mode
• Pulse By Pulse Over Current Limiting
• Under Voltage Lockout With Hysteresis
• External Sync. Terminal
Internal Block Diagram
©2003 Fairchild Semiconductor Corporation
KA5S-SERIES
K A 5 S 0 7 6 5 C /KA5S0 9 6 5 / K A 5 S 1 2 6 5 6 / K A5 S 1 2 6 5
Fai r c h i l d Pow e r Sw i t c h (FPS)
Soft Start
Feedback
& Sync
4
5
VREF
V
0.95mA
CC
3
(V
(Vfb=7.5V)
(Tj=160 C)
4 A
CC
OVP
OLP
TSD
15/9V
=25V)
Vth.sy
V
+
-
CC
VREF
V
UVLO
2.5V
CC
(V
+
-
S
OCP
=1.1V)
7V
6V
R
Vref
Open Circuit
1 s Window
OSC
+
-
2.5V
Power-on Reset
Voffset
(VCC=6.5V)
CLK
+
-
Shutdown Latch
1. Drain 2. Gnd 3. V
S
R
R
S
VREF UVLO
Q
Bias
Q
TO-220-5L
TO-3P-5L
1
1
CC
4. FeedBack 5. Sync.
www.fairchildsemi.com
SenseFET
Rsense
V
S
Drain
1
2
Rev.1.0.5
GND

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ka5s0965tu Summary of contents

Page 1

... Soft Start 5 & Sync Vth.sy + VREF Feedback 4 2.5V 0.95mA VREF OLP (Vfb=7.5V) TSD (Tj=160 C) OVP (V =25V ©2003 Fairchild Semiconductor Corporation TO-220-5L TO-3P-5L 1. Drain 2. Gnd 3. V Bias Vref VREF UVLO + - 2.5V - CLK OSC Voffset Window Shutdown Latch ...

Page 2

KA5S-SERIES Absolute Maximum Ratings (Ta=25 C, unless otherwise specified) Characteristic KA5S0765C Drain-Gate Voltage(R =1M GS Gate-Source(GND) Voltage (1) Drain Current Pulsed Continuous Drain Current ( Continuous Drain Current (Tc = 100 C) (3) Single Pulsed Avalanch Current ...

Page 3

Absolute Maximum Ratings (Ta=25 C, unless otherwise specified) Characteristic KA5S12656 Drain-Gate Voltage(R =1M GS Gate-Source(GND) Voltage (1) Drain Current Pulsed Continuous Drain Current ( Continuous Drain Current (Tc = 100 C) (3) Single Pulsed Avalanch Current Maximum ...

Page 4

... Ciss V =0V, V =25V Coss f = 1MHz Crss td(on) V =0. DSS tr (MOSFET switching time is essentially independent of td(off) operating temperature =10V, I =9.0A =0.5B V (MOSFET DS DSS switching time is essentially Qgs independent of operating Qgd temperature) Min. Typ. Max. 650 - - = 200 - 1.25 1.6 3 1600 - - 310 - - ...

Page 5

... Reverse Transfer Capacitance 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: 1. Pulse Test : Pulse width 300uS, Duty Cycle 2.MOSFET switching time is essentially independent of operating temperature --- - R (Continued) Symbol Conditions BV V ...

Page 6

KA5S-SERIES Electrical Characteristics (Control Part) (V =16V, Tamb = 25 C unless otherwise specified) CC Parameter UVLO SECTION Start Threshold Voltage Stop Threshold Voltage OSCILLATOR SECTION Initial Frequency Voltage Stability Temperature Stability (Note2) Maximum Duty Cycle Minimum Duty Cycle FEEDBACK ...

Page 7

Typical Performance Characteristics Istart(mA) 0.12 0.09 0.06 0.03 0.00 - Figure 1. Start Up Current vs. Temp. V Vstop(V) STOP 9.30 9.00 8.70 8.40 8.10 - Figure 3. Stop Threshold Voltage vs. Temp Fosc(kHz) ...

Page 8

KA5S-SERIES Typical Performance Characteristics Dmax(%) 98.0 96.5 95.0 93.5 92.0 - Figure 6. Maximum Duty vs. Temp. Vsd(V) 7.55 7.50 7.45 7.40 7.35 - Figure 8. Shutdown Feedback Voltage vs. Temp. Vovp(V) 26.6 25.9 ...

Page 9

Typical Performance Characteristics Iss(mA) 1.0 1.0 0.9 0.8 - Figure 12. Soft Start Current vs. Temp. (Continued) Vss(V) 5.10 5.05 5.00 4.95 4.90 100 125 150 -25 0 Temp Figure 13. Soft Start Voltage ...

Page 10

KA5S-SERIES Package Dimensions 10 TO-3P-5L ...

Page 11

Package Dimensions (Continued) TO-3P-5L(Forming) KA5S-SERIES 11 ...

Page 12

KA5S-SERIES Package Dimensions (Continued) 12 TO-220-5L ...

Page 13

Package Dimensions (Continued) TO-220-5L(Forming) KA5S-SERIES 13 ...

Page 14

... Device KA5S0765C KA5S0965 KA5S12656 KA5S1265 Notes ; ( Fairchild Semiconductor (2) 5S0765C, 5S0965, 5S12656, 5S1265; Device Marking Name (3) YY: Last Two Digit of Calender Year (4) WW: Patweek Based on Fairchild Semiconductor Work Month Calender 14 Pin No. Symbol 1 Drain 2 GND ...

Page 15

... Ordering Information Product Number Package KA5S0765CTU TO-220-5L KA5S0765CYDTU TO-220-5L(Forming) KA5S0965TU TO-3P-5L KA5S0965YDTU TO-3P-5L(Forming) KA5S12656TU TO-3P-5L KA5S12656YDTU TO-3P-5L(Forming) KA5S1265TU TO-3P-5L KA5S1265YDTU TO-3P-5L(Forming Non Forming Type YDTU : Forming Type Marking Code BVdss Rds(on) 5S0765C 650V 5S0965 650V 5S12656 650V 5S1265 650V KA5S-SERIES 1.6 1.2 0.9 0.9 15 ...

Page 16

... KA5S-SERIES 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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