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LX1665A Datasheet(PDF) 3 Page - Microsemi Corporation |
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LX1665A Datasheet(HTML) 3 Page - Microsemi Corporation |
3 / 17 page DUAL OUTPUT PWM CONTROLLERS WITH 5-BIT DAC LX1664/1664A, LX1665/65A PRODUCT DA T ABOOK 1996/1997 3 Copyright © 1999 Rev. 1.2 11/99 P RODUCTION D ATA S HEET ELECTRICAL CHARACTERISTICS (Unless otherwise specified, 10.8 < V CC < 13.2, 0°C ≤ TA ≤ 70°C. Test conditions: V CC = 12V, T = 25°C. Use Application Circuit.) Reference & DAC Section (See Table 1 - Next Page) Parameter Symbol Test Conditions Regulation Accuracy (See Table 1) (Less 40mV output adaptive positioning) , V CC = 12V, ILOAD = 6A Regulation Accuracy 1.8V ≤ V OUT ≤ 2.8V Timing Section Off Time Initial OT V CC_CORE = 1.3V, CT = 390pF V CC_CORE = 3.5V, CT = 390pF Off Time Temp Stability V CC_CORE = 1.3V to 3.5V Discharging Current I DIS V CC_CORE = 1.3V, VCT = 1.5V Ramp Peak V P Ramp Peak-Valley V RPP V CC_CORE = 1.3V V CC_CORE = 3.5V Ramp Valley Delay to Output 10% Overdrive Input Bias Current (V CC_CORE Pin) I B 1.3V < V INV = VCC_CORE < 3.5V Pulse By Pulse C L LX1664/1665 V CLP Initial Accuracy LX1664A/1665A Initial Accuracy C S Delay to Output 10% Overdrive Error Comparator Section Input Bias Current I B 1.3V < V SS = VINV < 3.5V Input Offset Voltage V IO E C Delay to Output 10% Overdrive Output Drivers Section Drive Rise Time T R V C1 = VCC = 12V, CL = 3000pF Drive Fall Time T F V C1 = VCC = 12V, CL = 3000pF Drive High V DH V CC = VCC = 12V, ISOURCE = 20mA V CC = VCC = 12V, ISINK = 200mA Drive Low V DL V CC = VCC = 12V, ISOURCE = 20mA V CC = VCC = 12V, ISINK = 200mA Output Pull Down V PD V CC = VC = 0, IPULL UP = 2mA UVLO and S.S. Section Start-Up Threshold V ST Hysteresis V HYST SS Sink Current I SD V C1 = 10.1V SS Sat Voltage V OL V C1 = 9V, ISD = 200µA Supply Current Section Dynamic Operating Current I CD V CC = VC1 = 12V, Out Freq = 200kHz, CL = 0 Power Good / Over-Voltage Protection Section (LX1665 Only) Lower Threshold (V CC_CORE / DACOUT) Hysteresis Power Good Voltage Low I PWRGD = 5mA Over-Voltage Threshold (V CC_CORE / VDAC) OVP Sourcing Current V OV = 5V Units -30 30 mV -1 1 % LX1664/1665 (A) Min. Typ. Max. 2µs 1µs 40 ppm 180 210 240 µA 2V 0.9 1 1.1 V 0.37 0.42 0.47 V 100 ns 0.8 2 µA 36 41 46 mV 200 ns 27 35 µA 85 100 115 mV 50 60 70 mV 200 ns 70 ns 70 ns 11 V 10 V 0.06 0.1 V 0.8 1.2 V 0.8 1.4 V 9.9 10.1 10.4 V 0.31 V 2 5.5 mA 0.15 0.6 V 27 mA 88 90 92 % 1% 0.5 0.7 V 110 117 125 % 30 45 mA Linear Regulator Section Output Voltage Set by external resistors Setpoint Accuracy I L = 0.5A using 0.5% resistors Output Temperature Drift Load Regulation Cummulative Accuracy Op-Amp Output Current Open Loop 1.5 3.6 V -1.5 1.5 % 40 ppm 1.5 % 3% 50 70 mA Current Sense Section |
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