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CAT3643HV2-T2 Datasheet(PDF) 3 Page - ON Semiconductor |
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CAT3643HV2-T2 Datasheet(HTML) 3 Page - ON Semiconductor |
3 / 17 page CAT3643 © 2008 SCILLC. All rights reserved. 3 Doc. No. MD-5022 Rev. G Characteristics subject to change without notice ABSOLUTE MAXIMUM RATINGS Parameter Rating Unit VIN, LEDx, C1±, C2±, EN/DIM, RSET voltage 6 V VOUT voltage 7 V Storage Temperature Range -65 to +160 °C Junction Temperature Range -40 to +150 °C RECOMMENDED OPERATING CONDITIONS Parameter Rating Unit VIN 2.5 to 5.5 V Ambient Temperature Range -40 to +85 °C ILED per LED pin up to 30 mA LED Forward Voltage Range 1.3 to 4.3 V Typical application circuit with external components is shown on page 1. ELECTRICAL OPERATING CHARACTERISTICS (over recommended operating conditions unless specified otherwise) VIN = 3.6V, EN = High, TAMB = 25°C Symbol Name Conditions Min Typ Max Units IQ Quiescent Current 1x mode, no load 1.33 x mode, no load 1.5x mode, no load 2x mode, no load 1.0 1.7 2.2 2.4 mA mA mA mA IQSHDN Shutdown Current VEN = 0V 1 µA ILED-ACC LED Current Accuracy (ILEDAVG – INOMINAL) / INOMINAL RSET = 5kΩ ±2 % ILED-DEV LED Channel Matching (ILED - ILEDAVG) / ILEDAVG ±1.5 % VRSET RSET Regulated Voltage 0.58 0.6 0.62 V ROUT Output Resistance (open loop) 1x mode 1.33x mode, VIN = 3V 1.5x mode, VIN = 2.7V 2x mode, VIN = 2.4V 0.8 5 5 10 Ω Ω Ω Ω FOSC Charge Pump Frequency 1.33x and 2x mode 1.5x mode 0.8 1 1 1.3 1.3 1.6 MHz MHz ISC_MAX Output short circuit Current Limit VOUT < 0.5V 50 mA IIN_MAX Input Current Limit VOUT > 1V 250 mA LEDTH 1x to 1.33x or 1.33x to 1.5x or 1.5x to 2x Transition Thresholds at any LED pin 130 mV VHYS 1x Mode Transition Hysteresis 400 mV TDF Transition Filter Delay 500 µs REN/DIM VHI VLO EN/DIM Pin • Internal Pull-down Resistor • Logic High Level • Logic Low Level 1.3 100 0.4 kΩ V V TSD Thermal Shutdown 150 °C THYS Thermal Hysteresis 20 °C VUVLO Undervoltage lockout (UVLO) threshold 1.6 1.8 2.0 V |
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