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KA5S12656 Datasheet(PDF) 6 Page - Fairchild Semiconductor |
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KA5S12656 Datasheet(HTML) 6 Page - Fairchild Semiconductor |
6 / 16 page KA5S-SERIES 6 Electrical Characteristics (Control Part) (Continued) (VCC=16V, Tamb = 25 °C unless otherwise specified) Note: 1. These parameters are the current flowing in the control IC. 2. These parameters, although guaranteed, are not 100% tested in mass production 3. These parameters, although guaranteed, are tested in EDS(wafer test) process 4. These parameters are indicated Inductor current. Parameter Symbol Conditions Min. Typ. Max. Unit UVLO SECTION Start Threshold Voltage VSTART VFB=GND 14 15 16 V Stop Threshold Voltage VSTOP VFB=GND 8 9 10 V OSCILLATOR SECTION Initial Frequency FOSC -18 20 22 kHz Voltage Stability FSTABLE 12V ≤ VCC ≤ 23V 0 1 3% Temperature Stability (Note2) ∆FOSC -25 °C ≤ Τa≤ 85°C0 ±5 ±10 % Maximum Duty Cycle DMAX -92 95 98 % Minimum Duty Cycle DMIN -- - 0 % FEEDBACK SECTION Feedback Source Current IFB VFB=GND 0.7 0.9 1.1 mA Shutdown Feedback Voltage VSD VFB ≥ 6.9V 6.9 7.5 8.1 V Shutdown Delay Current IDELAY VFB=5V 3.0 4.0 5.0 µA SYNC. & SOFTSTART SECTION Softstart Voltage VSS VFB=2V 4.7 5.0 5.3 V Softstart Current ISS VSS=0V 0.75 0.95 1.15 mA Sync High Threshold Voltage(Note3) VSYNCH VCC=16V , VFB=5V - 7.0 - V Sync Low Threshold Voltage(Note3) VSYNCL VCC=16V , VFB=5V - 6.0 - V CURRENT LIMIT(SELF-PROTECTION)SECTION Peak Current Limit (Note4) IOVER KA5S0765C 3.52 4.0 4.48 A KA5S0965 5.28 6.0 6.72 KA5S12656 5.28 6.0 6.72 KA5S1265 7.04 8.0 8.96 PROTECTION SECTION Over Voltage Protection VOVP VCC ≥ 24V 23 25 28 V Over Current Latch voltage(Note3) VOCL - 0.9 1.0 1.1 V Thermal Shutdown Tempature(Note2) TSD - 140 160 - °C TOTAL DEVICE SECTION Start Up Current ISTART VFB=GND, VCC=14V - 0.1 0.17 mA Operating Supply Current(Note1) IOP VFB=GND, VCC=16V -7 12 mA IOP(MIN) VFB=GND, VCC=12V IOP(MAX) VFB=GND, VCC=30V |
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