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CAT3614 Datasheet(PDF) 2 Page - Catalyst Semiconductor |
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CAT3614 Datasheet(HTML) 2 Page - Catalyst Semiconductor |
2 / 13 page CAT3614 Doc. No. MD-5035, Rev.B 2 © Catalyst Semiconductor, Inc. Characteristics subject to change without notice ABSOLUTE MAXIMUM RATINGS Parameter Rating Unit VIN, LEDx voltage 6 V VOUT, C1 ±, C2± voltage 7 V EN/DIM voltage VIN + 0.7V V Storage Temperature Range -65 to +160 °C Junction Temperature Range -40 to +150 °C Lead Temperature 300 °C RECOMMENDED OPERATING CONDITIONS Parameter Range Unit VIN 3 to 5.5 V Ambient Temperature Range -40 to +85 °C ILED per LED pin 0 to 31 mA Total Output Current 0 to 124 mA Typical application circuit with external components is shown on page 1. ELECTRICAL OPERATING CHARACTERISTICS VIN = 3.6V, EN = High, ambient temperature of 25ºC (over recommended operating conditions unless specified otherwise). Symbol Parameter Conditions Min Typ Max Unit IQ Quiescent Current 1x mode, no load 1.5x mode, no load 0.3 1 0.5 3 1 8 mA mA IQSHDN Shutdown Current VEN = 0V 1 µA ILED-ACC LED Current Accuracy 1mA ≤ ILED ≤ 31mA ±3 ±8 % ILED-DEV LED Channel Matching (ILED - ILEDAVG) / ILEDAVG ±3 ±7 % ROUT Output Resistance (open loop) 1x mode, IOUT = 100mA 1.5x mode, IOUT = 100mA 0.4 2.6 1 7 Ω Ω FOSC Charge Pump Frequency 0.8 1 1.3 MHz ISC_MAX Output short circuit Current Limit VOUT < 0.5V 30 60 100 mA IIN_MAX Input Current Limit 1x mode, VOUT > 1V 200 300 600 mA IEN/DIM VHI VLO EN/DIM Pin • Input Leakage • Logic High Level • Logic Low Level -1 1.3 1 0.4 µA V V TSD Thermal Shutdown 145 165 175 ºC THYS Thermal Hysteresis 10 20 30 ºC VUVLO Undervoltage lock out (UVLO) threshold 1.7 2 2.4 V |
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