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LC1126 Scheda tecnica(PDF) 4 Page - Unisonic Technologies |
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LC1126 Scheda tecnica(HTML) 4 Page - Unisonic Technologies |
4 / 6 page LC1126 Preliminary LINEAR INTEGRATED CIRCUIT UNISONICTECHNOLOGIESCO.,LTD 4 of 6 www.unisonic.com.tw QW-R102-050.a ABSOLUTE MAXIMUM RATING (T A=25°C, unless otherwise specified) PARAMETER SYMBOL RATINGS UNIT Supply Voltage VCC -0.3~7 V DRV to GND -0.3~VCC+0.3 V Power Dissipation PD 0.4 W Junction Temperature TJ -40~+125 °C Operating Temperature TOPR -40~+85 °C Storage Temperature TSTG -65~+150 °C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. ELECTRICAL CHARACTERISTICS (VIN=1.5V, VSHDN=VIN, TA=25°C, CIN=COUT=1µF, unless otherwise noted.) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Supply Voltage Range VCC 4.5 5.5 V Input Voltage UVLO Threshold VUVLO VCC Rising 3.75 V Input Voltage UVLO Hysteresis VHYST VCC Falling 0.25 V Supply Current ICC EN=VCC 0.4 0.8 mA Shutdown Current ISD EN=0V -1 1 µA Feedback Voltage VFB 0.49 0.5 0.51 V Feedback Pin Input Current IFB VFB=0.5V -100 100 nA Soft Start Time TSS 1 ms EN Pin Logic High Threshold Voltage VENH Enable 1.3 V VENL Disable 0.5 V EN Pin Input Current IEN IOUT=0mA, VIN=5V -1 +1 µA Output Voltage UVLO Threshold VTH(UV) VFB Falling 0.2 0.25 0.3 V Ton Duty TON VFB<0.25V 30 % DRV Output Current IDRV(SRC) Sourcing, VFB=0.48V 20 mA IDRV(SINK) Sinking, VFB=0.52V 20 mA DRV Pin Output Voltage VDRV VFB=0.48V, VCC=5V, No Load 4.9 5.0 V POK Threshold Voltage for Power OK VPOK VFB Rising 90% 93% 96% VFB POK Threshold Voltage for Power Not OK VPNOK VFB Falling 82% 85% 88% VFB POK Low Voltage POK Sinks 1mA 50 100 mV POK Delay Time TDELAY 0.8 2 10 ms Thermal Shutdown Temperature TSD 150 °C Thermal Shutdown Hysteresis 50 °C |
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