전자부품 데이터시트 검색엔진 |
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CS5112 데이터시트(PDF) 3 Page - Cherry Semiconductor Corporation |
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CS5112 데이터시트(HTML) 3 Page - Cherry Semiconductor Corporation |
3 / 10 page 3 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT s Watchdog Input (WDI) VIH Peak WDI needed to activate 2.0 V VIL 0.8 V Hysteresis Note 1 25 50 mV Pull-Up Resistor WDI=0V 20 50 100 k½ Low Threshold 6.25 8.78 11.0 ms Floating Input Voltage 3.5 V WDI Pulse Width 5µs s Switcher Section Minimum Operating 5.0 V Input Voltage Switching Frequency Refer to Figure 1d. 80 95 110 kHz Switch Saturation Voltage ISW = 1.4A 0.7 1.1 1.6 V Output Current Limit 1.4 2.5 A Max Switching Frequency VSW = 7.5V with 50½ load, 120 kHz Refer to Figure 1d. VFB1 Regulation Voltage 1.206 1.25 1.294 V VFB2 Regulation Voltage 1.206 1.25 1.294 V VFB1, VFB2 Input Current VFB1 = VFB2 = 5V 1 µA Oscillator Charge Current COSC = 0V 35 40 45 µA Oscillator Discharge Current COSC = 4V 270 320 370 µA CDelay Charge Current CDelay = 0V 35 40 45 µA Switcher Max Duty Cycle VSW = 5V with 50½ load, 72 85 95 % VFB1 = VFB2 = 1V Current Sense Amp Gain ISW = 2.3A 7 Error Amp DC Gain 67 dB Error Amp Transconductance 2700 µA/V s Input VIL 0.8 1.24 V VIH 1.30 2.0 V Hysteresis 60 mV Input Impedance 10 20 40 k½ s Select Input VIL (Selects VFB1) 4.9 ² VLIN ² 5.1 0.8 1.25 V VIH (Selects VFB2) 4.9 ² VLIN ² 5.1 1.25 2.0 V SELECT Pull-Up SELECT = 0V 10 24 50 k½ Floating Input Voltage 3.5 4.5 V Note 1: Guaranteed by Design, not 100% tested in production. ENABLE RESET Electrical Characteristics: 5V ² VIN ² 26V and -40¡C ² TJ ² 150¡C, -40¡C ² TA ² 85¡C, COUT = 100µF (ESR²8½), CDelay = 0.1µF, RBIAS = 64.9k½, COSC = 390 pF, CCOMP = 0.1µF; unless otherwise specified. |
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