EVALUATION KIT AVAILABLE Click here to ask about the production status of specific part numbers. MAX16141/ 3.5V to 36V Ideal Diode Controllers with MAX16141A Voltage and Current Circuit Breaker General Description Applications The MAX16141/MAX16141A ideal diode controllers pro- Automotive Power Systems vide system protection against a variety of system faults, Network/Telecom Power Systems such as reverse current, reverse voltage, overcurrent, in- RAID Systems put overvoltage/undervoltage, and overtemperature condi- Servers tions. The wide operating voltage range of 3.5V to 36V, PoE Systems combined with 5A (typ) of shutdown current, make the MAX16141/MAX16141A ideal for automotive applications. Benefits and Features An integrated charge pump drives the gate of the back-to- Wide Voltage Range back external nFETs 9V (typ) above the source connec- 3.5V to 36V Operating Voltage Range tion, minimizing power loss between the source and the -36V to +60V Input Protection Voltage Range load. Eliminates Discrete Diode Power Dissipation A fast-acting comparator allows the MAX16141/ 5A (typ) Shutdown Mode Current Reduces Battery MAX16141A to block reverse-current flow within 1s Drain (max) of the input falling below the output voltage. An ex- Sleep Mode Provides up to 400A Load Current ternal current-sense resistor between RS and OUT pro- TERM Switch Reduces Power Consumption vides overload monitoring capability. Two input pins, Isolates Failed Supply from Load OVSET and UVSET, provide set points to protect against Bidirectional Current Blocking on Open input overvoltage and undervoltage events using a simple Bidirectional Voltage Blocking on Open resistive-divider. Current Protection During startup, the MAX16141/MAX16141A monitor the Factory-Adjustable Overcurrent Trip Thresholds voltage drop across the external nFETs (V - V ) and IN OUT Factory-Adjustable Reverse-Current Trip the load current for overcurrent fault to ensure V is OUT Thresholds greater than 0.9 x V . Once the startup event is complete, IN Resistor Adjustable Overvoltage and Undervoltage the MAX16141/MAX16141A are ready to protect against Trip Thresholds systems faults. During normal operation, some systems Automotive Qualified experience brownouts or short interruptions of power. To Operates down to +3.5V, Riding out Cold-Crank ensure smooth system recovery from these interruptions, Conditions the MAX16141/MAX16141A include a secondary power -40C to +125C Operating Temperature Range input (V ) to keep critical circuits alive. When the main CC input power recovers, the MAX16141/MAX16141A enable N-Channel MOSFET Gate Driver of V + 9V IN the gate in fast mode (70s, max) to charge the output ca- Fault Output pacitor. UVLO, OVLO, Overcurrent, Reverse-Current, Battery Reversal, and Thermal Shutdown Both devices feature a low-power mode that is enabled AEC-Q100 Qualified MAX16141AAF/V+T with a logic input. In low-power mode the devices allow limited current flow from source to the load. For the Ordering Information appears at end of data sheet. MAX16141, the low-power mode is enabled using an ac- tive-low logic input, SLEEP. For the MAX16141A, the low- power mode is activated using an active-high logic input (SLEEP). Additional features include an internal switch that isolates the monitoring from the UVSET and OVSET resistive net- work in shutdown mode to help minimize system power loss. The MAX16141/MAX16141A are available in a 4mm x 4mm x 0.75mm, 16-pin TQFN package and operate over the automotive temperature range of -40C to +125C. 19-100342 Rev 6 4/21MAX16141/ 3.5V to 36V Ideal Diode Controllers with Voltage MAX16141A and Current Circuit Breaker Typical Application Circuit R Q1 Q2 SENSE V IN V OUT COUT 0.1F 100 IN GATE SRC RS OUT D1 10k VCC C 0.33F FAULT SHDN MAX16141/ SLEEP/ MAX16141A SLEEP TERM R1 UVSET GRC R2 10k OVSET GFC GND 10k R3 www.maximintegrated.com Maxim Integrated 2