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LM3477MM Datasheet(PDF) 3 Page - Texas Instruments |
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LM3477MM Datasheet(HTML) 3 Page - Texas Instruments |
3 / 35 page LM3477 www.ti.com SNVS141K – OCTOBER 2000 – REVISED MARCH 2013 Absolute Maximum Ratings (1) (2) Input Voltage 36V Peak Driver Output Current (<10µs) 1.0A CB Pin Voltage (3) 43V ISEN Pin Voltage 500mV Power Dissipation Internally Limited Storage Temperature Range −65°C to +150°C Junction Temperature +150°C ESD Susceptibilty (4) Human Body Model 2kV Machine Model 200V Lead Temperature for VSSOP Package Vapor Phase (60 sec.) 215°C Infared (15 sec.) 220°C (1) Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the device is intended to be functional. For ensured specifications and test conditions, see the Electrical Characteristics. (2) If Military/Aerospace specified devices are required, please contact the TI Sales Office/Distributors for availability and specifications. (3) The CB pin must not be higher than 8V above the VSW. (4) The human body model is a 100 pF capacitor discharged through a 1.5k Ω resistor into each pin. The machine model is 200 pF capacitor discharged directly into each pin. Operating Ratings (1) Supply Voltage 2.97V ≤ VIN ≤ 35V Junction Temperature Range −40°C ≤ TJ ≤ +125°C (1) Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the device is intended to be functional. For ensured specifications and test conditions, see the Electrical Characteristics. Electrical Characteristics (1) Specifications in Standard type face are for TJ = 25°C, and in bold type face apply over the full Operating Temperature Range. Unless otherwise specified, VIN = 12V. Symbol Parameter Conditions Typical Limit Units VFB Feedback Voltage VCOMP = 1.4V, 1.270 V 2.97V ≤ VIN ≤ 36V 1.260/1.252 V(min) 1.288/1.290 V(max) ΔVLINE Feedback Voltage Line Regulation 2.97V ≤ VIN ≤ 36V 0.001 %/V ΔVLOAD Output Voltage Load Regulation ±0.5 %/V (max) VUVLO Input Undervoltage Lock-out 2.87 V 2.97 V(max) VUV(HYS) Input Undervoltage Lock-out Hysteresis 180 mV 130 mV (min) 225 mV (max) FSW Switching Frequency 500 kHz 435 kHz(min) 575 kHz(max) RDS1 (ON) Driver Switch On Resistance (top) IDR = 0.2A, VIN= 5V 7 Ω RDS2 (ON) Driver Switch On Resistance (bottom) IDR = 0.2A 4 Ω (VCB−VSW)max Maximum Boot Voltage VIN < 7.2V VIN V VIN ≥ 7.2V 7.2 Dmax Maximum Duty Cycle 93 % 88 %(min) Tmin (on) Minimum On Time 330 nsec 230 nsec(min) 495 nsec(max) (1) All limits are ensured at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature limits are 100% tested. All limits at temperature extremes are ensured via correlation using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL). Copyright © 2000–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM3477 |
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