©2001 Fairchild Semiconductor Corporation
www.fairchildsemi
Rev.1.0.1
Features
•Precision fixed operating frequency (100 / 67 / 50KHz )•Pulse by pulse current limiting •Over current protection
•Over voltage protection (Min. 25V) -KA5x0165R/RN/RI •Internal thermal shutdown function •Under voltage lockout
•Internal high voltage sense FET •
Auto-restart mode
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 IC. Included 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, and temperature compensated precision current sources for loop compensation and fault protection circuitry. 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-220F-4L
8-DIP
I2-PAK-5L
1
1
1
1. GND
2. Drain
3. Vcc
4. FB
5. S/S
1.6.7.8. Drain
2. GND
3. Vcc
4. FB
5. NC
1. GND
2. Drain
3. Vcc
4. FB
uA
Internal Block Diagram
V CC
32V
5µA
五轴深孔钻
5V
2.5R
1R 1mA 0.1V
+
−OVER VOLTAGE S/D
+
7.5V 27V Thermal S/D S R
Q
Power on reset
+
−L.E.B S R Q
OSC
5V Vref
Internal bias
Good logic
SFET
DRAIN
GND
FB
Soft Start
9V KA5x0165Rxx-SERIES
KA5H0165R/RN, KA5M0165R/RN/RI, KA5L0165R/RN/RI KA5H0165RV/RVN, KA5M0165RV/RVN, KA5L0165RV/RVN Fairchild Power Switch(SPS)
KA5X0165RXX-SERIES
2
Absolute Maximum Ratings
(Ta=25°C, unless otherwise specified)
Notes:
1.Repetitive rating: Pulse width limited by maximum junction temperature
2.L=24mH, starting Tj=25°C
Characteristic
Symbol Value Unit Maximum Drain Voltage V D,MAX 650V Drain-Gate Voltage (R GS =1M Ω)V DGR 650V Gate-Source (GND) Voltage V GS ±30V Drain Current Pulsed (1)
软件自动化测试技术I DM 4.0A DC Continuous Drain Current (T C =25°C)I D 1.0A DC Continuous Drain Current (T C =100°C)I D 0.7A DC Single Pulsed Avalanche Energy (2)E AS 95mJ Maximum Supply Voltage V CC,MAX 30V Analog Input Voltage Range V FB −0.3 to V SD V Total Power Dissipation
足球加工P D 40W Derating 0.32W/°C Operating Junction Temperature.T J +160°C Operating Ambient Temperature.T A −25 to +85°C Storage Temperature Range.
T STG
−55 to +150
°C
KA5X0165RXX-SERIES
3
Electrical Characteristics (SFET part)
(Ta=25°C unless otherwise specified)
Note:
Pulse test: Pulse width ≤ 300µS, duty cycle ≤ 2%
Parameter
Symbol Condition
Min.Typ.Max.Unit D rain-source breakdown voltage BV DSS V GS =0V, I D =50µA 650--V Z ero gate voltage drain current
I DSS V DS =Max. Rating, V GS =0V --50µA V DS =0.8Max. Rating,V GS =0V, T C =125°C --200µA Static drain-source on resistance (note)R DS(ON)V GS =10V, I D =0.5A -810ΩForward transconductance (note)gfs V DS =50V, I D =0.5A 0.5--S Input capacitance Ciss V GS =0V, V DS =25V,f=1MHz
-250-pF
Output capacitance
Coss -25-Reverse transfer capacitance Crss -10-Turn on delay time td(on)V DD =0.5BV DSS , I D =1.0A (MOSFET switching time are essentially independent of
operating temperature)-12-nS
Rise time
夹抱机tr -4-Turn off delay time td(off)-30-Fall time
tf -10-Total gate charge
感温元件(gate-source+gate-drain)Qg V GS =10V, I D =1.0A,
V DS =0.5BV DSS (MOSFET switching time are
essentially independent of operating temperature)
--21nC
Gate-source charge Qgs -3-Gate-drain (Miller) charge
Qgd
-
9
-
S 1R
---=
KA5X0165RXX-SERIES
4
Electrical Characteristics (CONTROL part)
(Ta=25°C unless otherwise specified)
Notes:
1.These parameters, although guaranteed, are not 100% tested in production
2.These parameters, although guaranteed, are tested in EDS (wafer test) process
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
UVLO SECTION Start Threshold Voltage V START V FB =GND 141516V Stop Threshold Voltage V STOP
V FB =GND
8.4
9
9.6
V
OSCILLATOR SECTION Initial accuracy F OSC KA5H0165Rxx 90100110kHz Initial accuracy F OSC KA5M0165Rxx 616773kHz Initial accuracy
F OSC KA5L0165Rxx 455055kHz Frequency change with temperature (2)∆F/∆T −25°C ≤Ta ≤+85°C -±5±10%Maximum duty cycle Dmax KA5H0165Rxx 626772%Maximum duty cycle Dmax
KA5M0165Rxx KA5L0165Rxx
72
77
82
%
FEEDBACK SECTION Feedback source current I FB Ta=25°C, 0V<Vfb<3V 0.70.9 1.1mA Shutdown feedback voltage V SD Vfb>6.5V
6.9
7.5
8.1V Shutdown delay current Idelay
Ta=25°C, 3V ≤Vfb ≤V SD
4
5
6
µA
SOFT START SECTION Soft Start Voltage V SS KA5x0165RI
4.7
5.0 5.3V Soft Start Current I SS
0.8
1.0
1.2
mA
REFERENCE SECTION Output voltage (1)
Vref Ta=25°C 4.80 5.00 5.20V Temperature Stability (1)(2)Vref/∆T −25°C ≤Ta ≤+85°C -0.30.6mV/°C CURRENT LIMIT(SELF-PROTECTION)SECTION
Peak Current Limit I OVER
Max. inductor current
0.53
0.6
0.67
A
PROTECTION SECTION
Thermal shutdown temperature (Tj) (1)T SD -140160-°C Over voltage protection
V OVP
KA5x0165R/RN/RI
25
27
29
V
TOTAL STANDBY CURRENT SECTION Start Up Current I START V CC =14V -100170µA Operating supply current (control part only)
I OP
V CC <28
-7
12
mA
KA5X0165RXX-SERIES
Typical Performance Characteristics
(These characteristic graphs are normalized at Ta=25°C)
Figure 5. Start up Current Figure 6. Start Threshold Voltage
5
KA5X0165RXX-SERIES
Typical Performance Characteristics (Continued)
(These characteristic graphs are normalized at Ta=25°C)
Figure 11. Shutdown Delay Current Figure 12. Over Voltage Protection 6
豫公网安备41160202000603
站长QQ:729038198
关于我们
投诉建议