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LX1745 Datasheet(PDF) 2 Page - Microsemi Corporation |
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LX1745 Datasheet(HTML) 2 Page - Microsemi Corporation |
2 / 16 page LX1745 PRODUCTION DATASHEET Microsemi Integrated Products Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 2 Triple Output Boost – LED Driver / LCD Bias Copyright © 2000 Rev. 1.2, 2006-02-27 TM ® ABSOLUTE MAXIMUM RATINGS Supply Input Voltage ...........................................................................-0.3V to 7V Feedback Input Voltage (VFBx) ...............................................-0.3V to VIN + 0.3V Shutdown Input Voltage (VSHDN x) ..........................................-0.3V to VIN + 0.3V PWM Input Amplitude (ADJx, BRT).....................................-0.3V to VIN + 0.3V Analog Adjust Input Voltage (VADJx, VBRT)............................-0.3V to VIN + 0.3V SRC Input Current ................................................................................ 500mARMS Operating Temperature Range .........................................................-40 °C to 85°C Maximum Operating Junction Temperature ................................................ 150 °C Storage Temperature Range...........................................................-65 °C to 150°C RoHS / Pb-free Peak Package Solder Reflow Temperature (40 second maximum exposure) ..................................................... 260°C (+0, -5) Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into, negative out of specified terminal . x denotes respective pin designator 1, 2, or 3 TH ERMAL DATA PW Plastic TSSOP 20-Pin THERMAL RESISTANCE -JUNCTION TO AMBIENT, θ JA 90 °C/W Junction Temperature Calculation: TJ = TA + (PD x θJA). The θJA numbers are guidelines for the thermal performance of the device/pc-board system. All of the above assume no ambient airflow. PACKAGE PIN OUT GND DRV GND FB1 REF BRT SW1 ADJ1 IN SRC 1 2 8 7 14 17 20 19 3 5 9 12 18 16 6 4 OVP CS 15 13 SW2 10 11 SHDN1 LSHDN SHDN2 LFB ADJ2 FB2 GND PW PACKAGE (Top View) RoHS / Pb-free 100% Matte Tin Lead Finish |
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