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LM34910C Scheda tecnica(PDF) 3 Page - Texas Instruments |
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LM34910C Scheda tecnica(HTML) 3 Page - Texas Instruments |
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3 / 19 page  LM34910C www.ti.com SNVS517B – MAY 2007 – REVISED MARCH 2013 Absolute Maximum Ratings (1) (2) VIN to GND 55V BST to GND 70V SW to GND (Steady State) -1.5V ESD Rating(3) Human Body Model 2kV BST to VCC 55V VIN to SW 55V BST to SW 14V VCC to GND 14V SGND to RTN -0.3V to +0.3V Current out of ISEN See Text SS to RTN -0.3V to 4V All Other Inputs to GND -0.3 to 7V Storage Temperature Range -55°C to +150°C Junction Temperature 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 Texas Instruments Sales Office/Distributors for availability and specifications. (3) The human body model is a 100pF capacitor discharged through a 1.5k Ω resistor into each pin. Operating Ratings (1) VIN 8.0V to 50V 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 Specifications with standard typeface are for TJ = 25°C, and those with boldface type apply over full Operating Junction Temperature range. VIN = 24V, RON = 200k unless otherwise stated (1). Symbol Parameter Conditions Min Typ Max Units Start-Up Regulator, VCC VCCReg VCC regulated output 6.6 7 7.4 V ICC = 0 mA, VIN-VCC dropout voltage 1.4 V VCC = VCCReg - 100 mV VCC output impedance 0 mA ≤ ICC ≤ 5 mA 140 Ω VCC current limit (2) VCC = 0V 9 mA UVLOVCC VCC under-voltage lockout VCC increasing 5.8 V threshold UVLOVCC hysteresis VCC decreasing 150 mV UVLOVCC filter delay 100 mV overdrive 3 µs IIN operating current Non-switching, FB = 3V 0.63 1 mA IIN shutdown current RON/SD = 0V 80 250 µA Switch Characteristics Rds(on) Buck Switch Rds(on) ITEST = 200 mA 0.45 0.95 Ω UVLOGD Gate Drive UVLO VBST - VSW Increasing 3.0 4.3 5.5 V UVLOGD hysteresis 440 mV (1) Typical specifications represent the most likely parametric norm at 25°C operation. (2) VCC provides self bias for the internal gate drive and control circuits. Device thermal limitations limit external loading Copyright © 2007–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM34910C |
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