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LX1995-2CSG-TR Datasheet(PDF) 3 Page - Microsemi Corporation |
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LX1995-2CSG-TR Datasheet(HTML) 3 Page - Microsemi Corporation |
3 / 9 page LX1995 PRODUCTION DATA SHEET Microsemi Integrated Products Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 3 Miniature LED Driver Copyright © 2000 Rev. 1.1, 2005-07-07 TM ® ELECTRI CAL CHA RACTERI S TI CS Unless otherwise specified, the following specifications apply over the operating ambient 1 temperature 0°C ≤ T A ≤ 70°C except where otherwise noted and the following test conditions: VIN = 3V, VSHDN = VIN. Unless where indicated, these parameters apply to both the LX1995-1 and LX1995-2 part versions. LX1995-x Parameter Symbol Test Conditions Min Typ Max Units Operating Voltage VIN 1.6 5.5 V Minimum Start-up Voltage VSU TA = +25 °C 1.6 V Start-up Voltage Temperature Coefficient kVST Guaranteed; not tested -2 mV/ °C Not switching 70 100 Quiescent Current IQ V SHDN < 0.4V 0.2 0.5 µA FB Threshold Voltage VFB(TH) 288 320 352 mV FB Input Bias Current IFB Not Switching, VFB = 400mV -10 10 nA Shutdown Input Bias Current I SHDN V SHDN = 0V -100 100 nA Shutdown Low Input Voltage 0.6 Shutdown High Input Voltage V SHDN 1.4 V Switch Peak Current IPEAK L= 47 µH; LX1995-1 250 325 400 mA Switch Peak Current IPEAK L= 47 µH; LX1995-2 400 500 600 mA Minimum Switch Off-Time tOFF TA = +25 °C; VFB < VFB(TH) 300 ns Switch Pin Leakage Current ILEAK VSW = 28V 0.23 µA Note: 1. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature. 2. Functionality over the -40 °C to +85°C operating temperature range is assured by design, characterization, and correlation. SI MPLIFI ED BLOCK DI AGRAM Control Logic Driver V FB SW GND IN SHDN Reference Bias Figure 1 – Simplified Block Diagram |
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