LM5152-Q1

LM5152x-Q1 Automotive Low-IQ Synchronous Boost Controller for Start-Stop/Backup Battery Power Supply

1Features •AEC-Q100qualifiedforautomotiveapplications –Temperaturegrade1:–40°Cto+125°C,TA •FunctionalSafety-Capable –Documentationavailabletoaidfunctionalsafety systemdesign •Suitedforwideoperatingrangeautomotivebattery poweredapplications –3.8-Vto42-Vinpu

LM5152-Q1

LM5152x-Q1 Automotive Low-IQ Synchronous Boost Controller for Start-Stop/Backup Battery Power Supply

LM5152-Q1

汽车类 2.2MHz 宽输入电压、低 IQ 同步升压控制器; • AEC-Q100 qualified for automotive applications \n• Temperature grade 1: –40°C to +125°C, TA \n \n• Suited for wide operating range automotive battery powered applications \n• 3.8-V to 42-V input operating range\n• Dynamically programmable VOUT from 5 V to 20 V (protection up to 57 V)\n• Minimum boost input 0.8 V when BIAS ≥ 3.8 V \n• Bypass operation when VSUPPLY > VLOAD (LM5152 only, see the device comparison table)\n \n• Minimized battery drain \n• Shutdown current ≤ 3 µA\n• Automatic mode transition\n• Battery drain in deep sleep ≤ 11 µA (bypass operation, charge pump off)\n• Battery drain in deep sleep ≤ 33 µA (bypass operation, charge pump on)\n• BIAS IQ in sleep ≤ 13 µA (skip mode)\n• Strong 5-V MOSFET drivers\n \n• Small solution size and low cost \n• Maximum switching frequency: 2.2 MHz\n• Internal boot diode\n• Constant peak current limit over VIN \n• Supports DCR inductor current sensing\n• QFN-20 with wettable flanks\n \n• Avoid AM band interference and crosstalk \n• Optional clock synchronization\n• Switching frequency from 100 kHz to 2.2 MHz\n• Selectable switching mode (FPWM, diode emulation, skip mode)\n \n• EMI mitigation \n• Optional programmable spread spectrum\n• Lead-less package\n \n• Programmability and flexibility \n• Dynamic VOUT tracking\n• Dynamic switching frequency programming\n• Programable line UVLO\n• Adjustable soft start\n• Adaptive dead time\n• Boost STATUS indicator\n \n• Integrated protection features \n• Cycle-by-cycle peak current limit\n• Overvoltage protection\n• HB-SW short protection\n• Thermal shutdown;

LM5152-Q1_V01

LM5152x-Q1 Automotive Low-IQ Synchronous Boost Controller for Start-Stop/Backup Battery Power Supply

1Features •AEC-Q100qualifiedforautomotiveapplications –Temperaturegrade1:–40°Cto+125°C,TA •FunctionalSafety-Capable –Documentationavailabletoaidfunctionalsafety systemdesign •Suitedforwideoperatingrangeautomotivebattery poweredapplications –3.8-Vto42-Vinpu