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5 page 
Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 5 Copyright © 2000 Rev. 1.1, 2006-02-27 LX1689 Third Generation CCFL Controller PRODUCTION DATA SHEET TM ® RECOMM END E D O P ERATING CONDITIONS LX1689 Parameter Min Typ Max Units Supply Voltage (V_BATT) 3 28 V Digital Input (ENABLE) 0 6.5 V Analog Inputs (I_SNS, OC_SNS, OV_SNS) -3 3 VPK BRITE_IN Linear DC Voltage Range 0.5 2 V BRITE_IN PWM Logic Signal Voltage Range 0 5 V Digital Inputs (DIM_MODE, DIV_248,DIM_CLK) 0 5.5 V Maximum Output Gate Charge (AOUT, BOUT) 10 20 nC ELECTRICAL CHA RACTERISTICS Unless otherwise specified, the following specifications apply over the operating ambient temperature: LX1689CPW: 0 °C ≤ T A ≤ 70°C, LX1689IPW: -40°C ≤ T A ≤ 85°C, except where otherwise noted. Test conditions: V_BATT =3.3 to 28 VDC, I_R =80.6KΩ, BRITE_R = BRITE_OUT = 10KΩ, BRITE_C =open, ICOMP =100pf LX1689 Parameter Symbol Test Conditions Min Typ Max Units POWER Regulator Output Voltage VDD_P V_BATT = 6 to 28 V, I Load = 0 – 5mADC 5.05 5.3 5.55 V VDD_P Drop Out Voltage ∆VDD_P ∆VDD_P = -1% , I Load = 5mADC; TA = 25°C 50 mV Regulator Output Voltage VDD_A V_BATT = 3.5 to 28V, I Load = 0 – 5mADC 2.75 2.95 3.15 V VDD_A Dropout Voltage ∆VDD_A ∆VDD_A = -1% , I Load = 5mADC; TA = 25°C 100 mV VBATT Static Current IBATT 5.5 9 mA VBATT Dynamic Current IBATT CAOUT = CBOUT = 1000pF 10 17 mA Sleep Mode Current IBATT_SLEEP VENABLE ≤ 0.4V; VBATT = 5V 2.8 5 µA Sleep Mode Current IBATT_SLEEP VENABLE ≤ 0.4V; VBATT = 28V 22 35 µA ENABLE INPUT Run Threshold VTH_ENRUN 1.1 1.4 V Shutdown Threshold VTL_ENSHDN 0.4 1.1 V Input High Current IIH_ENABLE ENABLE = 2V 2 12 µA Input High Current IIH_ENABLE ENABLE = 5V 35 80 µA Input Low Current IIL_ENABLE ENABLE = 0V -1 0 1 µA UNDER VOLTAGE LOCKOUT Startup Threshold Run Mode 2.55 2.8 V UVLO Threshold VT_UVLO Shutdown Mode 2.1 2.35 V UVLO Hysteresis VH_UVLO 200 mV |
