LM74202QPWPRQ1

The LM74202-Q1 device is a feature-rich, compact 40V integrated ideal diode with a comprehensive set of protection features. The wide power supply input range allows it to control 12V automotive battery-driven applications. This device can withstand and protect loads powered by positive and negative power supplies up to ±40V. Load, power supply, and device protection also have many programmable features, including overcurrent protection, inrush current control, overvoltage protection, and undervoltage threshold protection. The reliable internal protection control module and the 40V rated voltage of this device simplify the system design for ISO standard pulse testing. With the shutdown pin, the enabling and disabling of the internal FET can be externally controlled, and the device can also be placed in a low-current shutdown mode. To enable system status monitoring and downstream load control, this device provides a fault output and a precision current monitoring output. The MODE pin can be used to flexibly configure the device among three current limit fault responses (circuit breaker, latch, and auto-retry modes). This device monitors V(IN) and V(OUT) to provide reverse current blocking when V(IN) < (V(OUT) - 10mV). This function protects the system bus from overvoltage during a battery short-circuit fault at the output and helps meet the hold-up voltage requirements during power failure and undervoltage conditions. This device comes in a 5mm×4.4mm ≈ 16-pin HTSSOP package and has a rated operating temperature range of -40°C to +125°C.

Applications

• Front camera
• Rear camera
• Driver assistance ECU
• Telematics control unit
• Cellular module
• Asset tracking

Key features

• AEC-Q100 qualified for automotive applications
• Temperature Grade 1: -40°C ≤ TA ≤ +125°C
• AEC-Q100-012 Grade A short-circuit reliability
• HBM ESD Classification Level 2
• CDM ESD Classification Level C
• 6.2V to 40V operating voltage, 42V maximum
• Integrated reverse input polarity protection down to -40V
• Integrated back-to-back MOSFETs with total RON of 150mΩ
• Transient immunity up to 55V
• 0.1A to 2.23A adjustable current limit (±5% accuracy at 1A)
• Load protection during ISO7637 and ISO16750-2 testing
• Battery short-circuit and ground short-circuit protection
• Reverse current blocking with output-to-battery short-circuit protection
• IMON current monitor output (±8.5% accuracy)
• Low quiescent current (285μA operating, 16μA shutdown)
• Adjustable UVLO, OVP cutoff, and inrush current control
• Selectable current-limit fault response (auto-retry, latch-off, CB mode)
• Easy-to-use 16-pin HTSSOP package