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PRODUCTION DATA SHEET Microsemi Integrated Products Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 5 Copyright © 2000 Rev. 1.0, 2005-08-10 LX1672 Multiple Output LoadSHARE™ PWM TM ® ELECTRICAL CHA RACTERISTICS Unless otherwise specified, the following specifications apply over the operating ambient temperature 0 °C ≤ T A ≤ 70°C except where otherwise noted and the following test conditions: VCC = 5V, VCCL = 5V, VCX = 12V, HOX = LOX = 3000pF Load LX1672 Parameter Symbol Test Conditions Min Typ Max Units UVLO AND SOFT-START (SS) Start-Up Threshold (VCX), (VCCL) 3.5 4.0 4.5 V Start-Up Threshold (VCC) 4.0 4.25 4.5 V Hysteresis Vcc 0.1 V SS Input Resistance RSS 20 K Ω SS Shutdown Threshold VSHDN 0.15 V Hiccup Mode Duty Cycle CSS = 0.1μF 10 % LINEAR REGULATOR CONTROLLER Voltage Reference Tolerance VLDFB = 0.8V, COUT = 330µF 2 % Source Current IHDRV VOUT = 9V 6 mA Sink Current ILDRV VOUT = 0.4V 0.2 mA DISABLE INPUT 1.0 V PWM Disable DISX Pull down Resistance 80 ΚΩ 2.5 V LDO Disable LDDIS Pull down Resistance 100 K Ω Note 1 – X = Phase 1,2 Note 2 – System Specification |
