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CAT32ZD4-GT3 Datasheet(PDF) 3 Page - ON Semiconductor |
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CAT32ZD4-GT3 Datasheet(HTML) 3 Page - ON Semiconductor |
3 / 13 page CAT37 © 2009 SCILLC. All rights reserved. 3 Doc. No. MD-5005 Rev. V Characteristics subject to change without notice ABSOLUTE MAXIMUM RATINGS (1) Parameter Rating Unit VIN, FB, SHDN ¯¯¯¯¯ voltage 8 V SW voltage 20 V Storage Temperature Range -65 to +160 ºC Junction Temperature 125 ºC Lead Soldering Temperature (10 secs) 300 ºC ESD Rating – Human Body Model 2000 V RECOMMENDED OPERATING CONDITIONS Parameter Range Unit VIN 2.5 to 7 V Ambient Temperature Range -40 to +85 °C Inductor L1 6.8 ± 20% typical µH Input Capacitor C1 1.0 ± 20% typical µF Output Capacitor C2 1.0 ± 20% typical µF ILED with 1 to 4 LEDs in series 0 to 20 mA Typical application circuit with external components is shown on page 1. ELECTRICAL OPERATING CHARACTERISTICS Over recommended operating conditions unless otherwise specified. TA = 25ºC, VIN = 3V and V SHDN ¯¯¯¯¯ = 3V. Symbol Parameter Conditions Min Typ Max Units Input Voltage Range 2.5 7 V IQ Quiescent Current VFB = 0.2 V 0.5 0.7 mA ISD Shutdown Current VSHDN = 0 V 0.05 1 µA VFB FB Pin Voltage 4 LEDs at 15 mA 85 95 105 mV IFB FB Pin Leakage Current 1 2 µA Shutdown High Threshold 0.85 V Shutdown Low Threshold 0.25 V ISHDN Shutdown Pin Current 1 nA fSW Boost Converter Frequency 0.8 1.2 1.6 MHz DC Maximum Switch Duty Cycle 90 95 % ISWL Switch Current Limit 400 550 780 mA Switch Saturation Voltage ISW = 300 mA 150 200 mV Switch Leakage Current Switch Off, VSW = 5 V 0.01 5 µA Efficiency Figure 1 with specified components 83 % Notes: (1) These are stress ratings only and functional operation is not implied. Exposure to absolute maximum ratings for prolonged time periods may affect device reliability. All voltages are with respect to ground. |
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