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LM5035MH Datasheet(PDF) 5 Page - National Semiconductor (TI) |
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LM5035MH Datasheet(HTML) 5 Page - National Semiconductor (TI) |
5 / 28 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. VIN to GND -0.3V to 105V HS to GND -1V to 105V HB to GND -0.3V to 118V HB to HS -0.3V to 18V VCC to GND -0.3V to 16V CS, RT, DLY to GND -0.3V to 5.5V COMP Input Current 10mA All other inputs to GND -0.3V to 7V ESD Rating (Note 4) Human Body Model 2kV Storage Temperature Range -65˚C to 150˚C Junction Temperature 150˚C Operating Ratings (Note 1) VIN Voltage 13V to 105V External Voltage Applied to VCC 8V to 15V Operating Junction Temperature -40˚C to +125˚C Electrical Characteristics Specifications with standard typeface are for T J = 25˚C, and those with boldface type apply over full Operating Junction Temperature range.V VIN = 48V, VVCC = 10V externally applied, RRT = 15.0 k Ω, R DLY = 27.4k Ω,V UVLO = 3V, VOVP = 0V unless otherwise stated. See (Note 2) and (Note 3). Symbol Parameter Conditions Min Typ Max Units Startup Regulator (VCC pin) V VCC VCC voltage I VCC = 10mA 7.3 7.6 7.9 V I VCC(LIM) VCC current limit V VCC =7V 20 25 mA V VCCUV VCC Under-voltage threshold (VCC increasing) VIN = VCC, ∆V VCC from the regulation setpoint 0.2 0.1 V VCC decreasing VCC – PGND 5.5 6.2 6.9 V I VIN Startup regulator current VIN = 90V, UVLO = 0V 30 70 µA Supply current into VCC from external source Outputs & COMP open, V VCC = 10V, Outputs Switching 4 6 mA Voltage Reference Regulator (REF pin) V REF REF Voltage I REF = 0mA 4.85 5 5.15 V REF Voltage Regulation I REF = 0 to 10mA 25 50 mV REF Current Limit REF = 4.5V 15 20 mA Under-Voltage Lock Out and shutdown (UVLO pin) V UVLO Under-voltage threshold 1.212 1.25 1.288 V I UVLO Hysteresis current UVLO pin sinking 19 23 27 µA Under-voltage Shutdown Threshold UVLO voltage falling 0.3 V Under-voltage Standby Enable Threshold UVLO voltage rising 0.4 V Over-Voltage Protection (OVP pin) V OVP Over-Voltage threshold 1.212 1.25 1.288 V I OVP Hysteresis current OVP pin sourcing 19 23 27 µA Current Sense Input (CS Pin) V CS Current Limit Threshold 0.228 0.25 0.272 V CS delay to output CS from zero to 1V. Time for HO and LO to fall to 90% of VCC. Output load = 0 pF. 80 ns Leading edge blanking time at CS 50 ns CS sink impedance (clocked) Internal FET sink impedance 32 60 Ω Current Limit Restart (RES Pin) V RES RES Threshold 2.4 2.5 2.6 V Charge source current V RES = 1.5V 16 22 28 µA Discharge sink current V RES =1V 8 12 16 µA www.national.com 5 |
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