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KA1M0880D-TU Datasheet(PDF) 4 Page - Fairchild Semiconductor |
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KA1M0880D-TU Datasheet(HTML) 4 Page - Fairchild Semiconductor |
4 / 10 page KA1M0880D 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 VSTART - 14 15 16 V Stop threshold voltage VSTOP After turn on 9 10 11 V OSCILLATOR SECTION Initial accuracy FOSC KA1M0880D 61 67 73 kHz Frequency change with temperature (2) ∆F/∆T −25°C ≤ Ta ≤ +85°C- ±5 ±10 % Maximum duty cycle Dmax - 74 77 80 % FEEDBACK SECTION Feedback source current IFB Ta=25 °C, 0V ≤ Vfb ≤ 3V 0.7 0.9 1.1 mA Shutdown delay current Idelay Ta=25 °C, 5V ≤ Vfb ≤ VSD 4.0 5.0 6.0 µA SOFT START SECTION Soft Start Voltage VSS VFB =2V 4.7 5.0 5.3 V Soft Start Current ISS Sync & S/S=GND 0.8 1.0 1.2 mA REFERENCE SECTION Output voltage (1) Vref Ta=25 °C 4.80 5.00 5.20 V Temperature Stability (1)(2) Vref/ ∆T −25°C ≤ Ta ≤ +85°C- 0.3 0.6 mV/ °C CURRENT LIMIT (SELT-PROTECTION)SECTION Peak Current Limit IOVER Max. inductor current 4.40 5.00 5.60 A PROTECTION SECTION Thermal shutdown temperature (Tj) (1) TSD - 140 160 - °C Over voltage protection voltage VOVP - 23 25 28 V TOTAL DEVICE SECTION Start Up current ISTART VCC=14V 0.1 0.3 0.45 mA Operating supply current (control part only) IOP Ta=25 °C 6 12 18 mA VCC zener voltage VZ ICC=20mA 30 32.5 35 V Shutdown Feedback voltage VSD - 6.9 7.5 8.1 V |
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