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VIPER222LSTR Datasheet(PDF) 7 Page - STMicroelectronics |
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VIPER222LSTR Datasheet(HTML) 7 Page - STMicroelectronics |
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7 / 20 page  Symbol Parameter Test Condition Min. Typ. Max. Unit tOVLmax Maximum overload delay time VIPER222XSTR FOSC = FOSCmin 220 ms VIPER222LSTR FOSC = FOSCmin 440 tSS Soft-start time 5 11 ms tCC_FAIL Clamp time before shutdown 325 500 675 µs FOSC Switching frequency VIPER222XSTR 27 30 33 kHz VIPER222LSTR 54 60 66 FOSCmin Minimum switching frequency 13.5 15 16.5 kHz FD Modulation depth (1) ±7 kHz FM Modulationfrequency (1) 260 Hz DMAX Max. duty cycle (1) 70 80 % VREF E/A reference voltage 1.175 1.2 1.225 V IPULL UP EA-IN pin current pull-up -1 µA GM E/A Trans conductance (1) 0.5 mA/V VEA-SAT EA-OUT pin saturation limit 3 V VEA-BM Burstmode threshold 0.8 V RDYN Dynamic resistance VEA-OUT =2.7V VEA-IN =GND 65 kΩ HEA-OUT ΔVEA-OUT / ΔID (1) 3.8 7 V/A IEA-OUT EA-OUT pin source / sink current 100 µA TSD Thermal shutdown temperature (1) 150 160 °C 1. Specification assured by characterization. VIPER222 Electrical characteristics DS13192 - Rev 2 page 7/20 |
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