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LM5177 Datasheet(PDF) 13 Page - Texas Instruments |
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LM5177 Datasheet(HTML) 13 Page - Texas Instruments |
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13 / 112 page  Typical values correspond to TJ=25°C. Minimum and maximum limits apply over TJ=0°C to 70°C. Unless otherwise stated, V(BIAS) =12 V PARAMETER MIN TYP MAX UNIT VT+(OVP2) Over-voltage rising threshold V(VOUT) rising V_OVP2 = 0b111111 53.5 55 56.5 V Over-voltage de-glitch time 9 10 12.5 µs nFLT nFLT pull-down switch RDSON 1mA sinking 85 140 Ω Under-voltage positive going threshold FB rising (referece to VREF) 92 95 97 % Under-voltage negative going threshold FB falling (referece to VREF) 87 90 93 % nFLT off-state leakage V(nFLT)=12V 100 nA td(nFLT-PIN) Deglitch filter 20 37 us MOSFET DRIVER tr Rise time LO1, LO2 CG = 3.3nF 10 ns tr Fall time CG = 3.3nF 8 ns tf Rise time HO1, HO2 CG = 3.3nF 15 ns tf Fall time CG = 3.3nF 15 ns tt Transition (Dead) time CG = 3.3nF R(RT) = 316 kΩ (0.1 MHz), SEL_MIN_DEADTIME_ GDRV = 0b01, SEL_SCALE_DT = 0b1, EN_CONST_TDEAD = 0b0 42 ns tt Transition (Dead) time CG = 3.3nF R(RT) = 14.2 kΩ (2.2 MHz), SEL_MIN_DEADTIME_ GDRV = 0b01, SEL_SCALE_DT = 0b1, EN_CONST_TDEAD = 0b0 19.5 ns Gate driver high side on- resistance LO1, LO2 I(test) = 500 mA 1.8 Ω Gate driver high side on- resistance HO1, HO2 1.5 Ω Gate driver low side on- resistance LO1, LO2 0.9 Ω Gate driver low side on- resistance HO1, HO2 0.8 Ω VTH- (BOOT_UV) Negative going boot-strap UVLO threshold V(HBx) - V(SWx) falling 2.5 2.7 3.1 V VTH- (BOOT_UV) Boot-strap UVLO hysteresis 300 mV VTH+ (BST_OV) Positive going boot-strap over-voltage threshold V(HBx) - V(SWx) rising, I_HBx=10mA 5.1 5.5 5.9 V VTH (GATEOUT) Gate driver output switching detection LO1,LO2 referenced to VCC 37 % VTH (GATEOUT) Gate driver output switching detection HO2, HO2 referenced to V(HBx) - V(SWx) 37 % THERMAL SHUTDOWN TT+J Thermal shutdown threshold Thermal shutdown threshold TJ rising 164 °C Thermal shutdown hysteresis Thermal shutdown hysteresis 15 °C www.ti.com LM251772 SNVSCT9 – OCTOBER 2024 Copyright © 2024 Texas Instruments Incorporated Submit Document Feedback 13 Product Folder Links: LM251772 |
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