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LM5010MH Datasheet(PDF) 4 Page - National Semiconductor (TI) |
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LM5010MH Datasheet(HTML) 4 Page - National Semiconductor (TI) |
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4 / 19 page  Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. V IN to GND 76V BST to GND 90V SW to GND (Steady State) -1.5V BST to V CC 76V BST to SW 14V V CC to GND 14V S GND to RTN -0.3V to +0.3V SS to RTN -0.3V to 4V V IN to SW 76V Current Out of I SEN See Text All Other Inputs to GND -0.3 to 7V ESD Rating (Note 2) Human Body Model 2kV Storage Temperature Range -55˚C to +150˚C Lead Temperature (Soldering 4 sec) (Note 4) 260˚C Operating Ratings (Note 1) V IN 8V to 75V Operating Junction Temperature −40˚C to + 125˚C Electrical Charateristics Specifications with standard typeface are for T J = 25˚C, and those with boldface type apply over full Operating Junction Temperature range.V IN = 48V, RON = 200k Ω, unless otherwise stated (Note 5) and (Note 6). Symbol Parameter Conditions Min Typ Max Units V CC Regulator V CCReg V CC regulated output 6.6 7 7.4 Volts V IN -VCC I CC = 0 mA, FS < 200 kHz 7.5V ≤ V IN ≤ 8.0V 1.3 V V CC output impedance (0 mA ≤ I CC ≤ 5 mA) V IN = 8.0V V IN = 48V 140 2.5 Ω V CC current limit (Note 3) V CC =0V 10 mA UVLO VCC V CC under-voltage lockout threshold V CC increasing 5.8 V UVLO VCC hysteresis V CC decreasing 145 mV UVLO VCC filter delay 100 mV overdrive 3 µs I IN operating current Non-switching, FB = 3V 650 850 µA I IN shutdown current R ON/SD=0V 95 200 µA Switch Characteristics Rds(on) Buck Switch Rds(on) I TEST = 200 mA 0.35 0.80 Ω UVLO GD Gate Drive UVLO V BST -VSW Increasing 3.0 4.3 5.0 V UVLO GD hysteresis 440 mV Softstart Pin Pull-up voltage 2.5 V Internal current source 11.5 µA Current Limit I LIM Threshold Current out of I SEN 1 1.25 1.5 A Resistance from I SEN to SGND 130 m Ω Response time 150 ns On Timer, R ON/SD Pin t ON - 1 On-time V IN = 10V, RON = 200 k Ω 2.1 2.75 3.4 µs t ON - 2 On-time V IN = 75V, RON = 200 k Ω 290 390 490 ns Shutdown threshold Voltage at R ON/SD rising 0.35 0.65 1.1 V Threshold hysteresis Voltage at R ON/SD falling 40 mV Off Timer t OFF Off-time 265 ns www.national.com 4 |
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