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TPS40077 Datasheet(PDF) 2 Page - Texas Instruments |
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TPS40077 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 43 page www.ti.com DESCRIPTION (CONTINUED) ABSOLUTE MAXIMUM RATINGS RECOMMENDED OPERATING CONDITIONS ELECTROSTATIC DISCHARGE (ESD) PROTECTION TPS40077 SLUS714 – JANUARY 2007 The TPS40077 drives external N-channel MOSFETs using second-generation, predictive-gate drive to minimize conduction in the body diode of the low-side FET and maximize efficiency. Pre-biased outputs are supported by not allowing the low-side FET to turn on until the voltage commanded by the closed-loop soft start is greater than the pre-bias voltage. Voltage feed-forward provides good response to input transients and provides a constant PWM gain over a wide input-voltage operating range to ease compensation requirements. Programmable short-circuit protection provides fault-current limiting and hiccup recovery to minimize power dissipation with a shorted output. The 16-pin PowerPAD package gives good thermal performance and a compact footprint. ORDERING INFORMATION PACKAGE ORDERABLE PART NUMBER Plastic HTSSOP (PWP) Tube TPS40077PWP Plastic HTSSOP (PWP) Tape and reel TPS40077PWPR over operating free-air temperature range unless otherwise noted(1) TPS40077 UNIT VDD, ILIM 30 COMP, FB, KFF, PGD, LVBP –0.3 to 6 VVDD Input voltage range V SW –0.3 to 40 SW, transient < 50 ns –2.5 COMP, KFF, RT, SS –0.3 to 6 VBOOST 50 VOUT Output voltage range V DBP 10.5 LVBP 6 Output current source LDRV, HDRV 1.5 IOUT LDRV, HDRV 2 A Output current sink KFF 10 RT 1 Output current mA LVBP 1.5 TJ Operating junction temperature range –40 to 125 Tstg Storage temperature –55 to 150 °C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260 (1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. MIN NOM MAX UNIT VDD Input voltage 4.5 28 V TA Operating free-air temperature –40 85 °C UNIT Human body model (HBM) 2000 V Charged device model (CDM) 1500 V 2 Submit Documentation Feedback |
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