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LM25085A データシート(PDF) 3 Page - Texas Instruments |
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LM25085A データシート(HTML) 3 Page - Texas Instruments |
3 / 31 page LM25085A www.ti.com SNVS601B – JANUARY 2009 – REVISED MARCH 2013 Absolute Maximum Ratings (1) (2) VIN to GND -0.3V to 45V ISEN to GND -0.3V to VIN + 0.3V ADJ to GND -0.3V to VIN + 0.3V RT, FB to GND -0.3V to 7V VIN to VCC, VIN to PGATE -0.3V to 10V ESD Rating (3) Human Body Model 2kV Storage Temperature Range -65°C to +150°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 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 human body model is a 100 pF capacitor discharged through a 1.5 k Ω resistor into each pin. Operating Ratings (1) VIN Voltage 4.5V to 42V Junction Temperature −40°C to + 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 specifications and test conditions, see the Electrical Characteristics. Electrical Characteristics Limits in standard type are for TJ = 25°C only; limits in boldface type apply over the junction temperature (TJ) range of -40°C to +125°C. Minimum and Maximum limits are specified through test, design, or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. Unless otherwise stated the following conditions apply: VIN = 24V, RT = 100 kΩ. Symbol Parameter Conditions Min Typ Max Units VIN Pin IIN Operating current Non-switching, FB = 1.05V (1) 1.25 1.75 mA IQ Shutdown current RT = 0V (1) 175 300 µA VCC Regulator (2) VCC(reg) VIN - VCC Vin = 9V, FB = 1.05V, ICC = 0 mA 6.9 7.7 8.5 V Vin = 9V, FB = 1.05V, ICC = 20 mA 7.7 V Vin = 42V, FB = 1.05V, ICC = 0 mA 7.7 V UVLOVcc VCC under-voltage lock-out VCC increasing 3.8 V threshold UVLOVcc hysteresis VCC decreasing 260 mV VCC(CL) VCC Current Limit FB = 1.05V 20 40 mA PGATE Pin VPGATE(HI) PGATE High voltage PGATE Pin = Open VIN -0.1 VIN V VPGATE(LO) PGATE Low voltage PGATE Pin = Open VCC VCC+0.1 V VPGATE(HI)4.5 PGATE High Voltage at Vin = 4.5V PGATE Pin = Open VIN -0.1 VIN V VPGATE(LO)4.5 PGATE Low Voltage at Vin = 4.5V PGATE Pin = Open VCC VCC+0.1 V IPGATE Driver Output Source Current VIN = 12V, PGATE = VIN - 3.5V 1.75 A Driver Output Sink Current VIN = 12V, PGATE = VIN - 3.5V 1.5 A RPGATE Driver Output Resistance Source current = 500 mA 2.3 Ω Sink current = 500 mA 2.3 Ω Current Limit Detection IADJ ADJUST pin current source VADJ = 22.5V 32 40 48 µA VCL OFFSET Current limit comparator offset VADJ = 22.5V, VADJ - VISEN -9 0 9 mV (1) Operating current and shutdown current do not include the current in the RT resistor. (2) VCC provides self bias for the internal gate drive. Copyright © 2009–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM25085A |
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