KA5S0965

www.fairchildsemi.com KA5S-SERIES KA5S0765C/KA5S09654QT/KA5S0965/ KA5S12656/KA5S1265 Fairchild Power Switch(FPS) Features Wide Operating Frequency Range Up to 150Khz Lowest Cost SMPS Solution Lowest External Components Low Start-up Current (max:170uA) 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 TO-3P-5L 1 TO-220F-5L TO-220-5L 1 1 1. Drain 2. Gnd 3. VCC 4. FeedBack 5. Sync. Internal Block Diagram VCC 3 VCC UVLO + 15/9V Soft Start & Sync 5 VREF Feedback 4 0.95mA 4µA OLP (Vfb=7.5V) TSD (Tj=160°C) OVP (VCC=25V) 1µs Window Open Circuit OCP (VS=1.1V) 2.5V R VREF VCC Vth.sy + 7V 6V + Voffset R S Q Bias Vref 2.5V OSC CLK + VREF UVLO Drain 1 SenseFET VS S Q R Shutdown Latch Rsense 2 GND Power-on Reset (VCC=6.5V) Rev.1.0.2 ©2001 Fairchild Semiconductor Corporation KA5S-SERIES KA5S0765C/KA5S09654QT/KA5S0965/KA5S12656/KA5S1265 Absolute Maximum Ratings (Ta=25°C, unless otherwise specified) Characteristic Symbol VD,MAX VDGR VGS IDM ID ID (2) Value 650 650 ±30 28 7.0 5.6 20(570) 30 -0.3 to VCC -0.3 to 8 135 1.1 +160 -25 to +85 -55 to +150 Unit V V V ADC ADC ADC A(mJ) V V V W W / °C °C °C °C KA5S0765C Maximum drain voltage Drain-gate voltage(RGS=1MΩ) Gate-source...