Overview
The LM73100RPWR, manufactured by Texas Instruments, is a highly integrated circuit protection and power management solution. This device is designed to provide robust protection against various power-related issues such as voltage surges, reverse polarity, reverse current, and excessive inrush current. It is particularly well-suited for power MUX/ORing applications due to its integrated back-to-back FETs, which block reverse current flow from output to input. The LM73100RPWR also emulates ideal diode behavior with minimal forward voltage drop and power dissipation, making it an efficient choice for a wide range of power management needs.
Key Specifications
| Specification | Value |
|---|---|
| Input Voltage Range | 2.7 V to 23 V |
| Absolute Maximum Input Voltage | 28 V |
| Negative Voltage Tolerance | Up to -15 V |
| On-Resistance (RON) | 28.4 mΩ (typ) |
| Output Current Range | 0.5 A to 5.5 A |
| Analog Current Monitor Accuracy | ±15% (max) (IOUT ≥ 1 A) |
| Overvoltage Protection Response Time | 1.2 μs (typ) |
| Transient Overcurrent Response Time | 500 ns (typ) |
| Package Type | 10-pin Hot Rod QFN (2 mm x 2 mm) |
| Operating Temperature Range | -40°C to +125°C |
Key Features
- Integrated back-to-back FETs with low On-Resistance (RON = 28.4 mΩ typ)
- Ideal diode operation with true reverse current blocking
- Fast overvoltage protection with 1.2-μs response time
- Adjustable overvoltage lockout (OVLO)
- Fast-trip response to transient overcurrents during steady state (500-ns response time)
- Latch-off after fault
- Analog load current monitor output (IMON)
- Adjustable output slew rate control (dV/dt)
- Overtemperature protection
- Power Good indication (PG) with adjustable threshold (PGTH)
- Small footprint: QFN 2 mm x 2 mm, 0.45-mm pitch
Applications
- Power MUX/ORing applications
- Portable electronic devices such as smartphones, tablets, and wearable gadgets
- Wireless sensor networks and data loggers
- Embedded systems, including microcontrollers and interface modules
- Internet of Things (IoT) devices, including smart home devices and industrial sensors
- Medical instruments and handheld diagnostic devices
Q & A
- What is the primary function of the LM73100RPWR?
The LM73100RPWR is a highly integrated circuit protection and power management solution, providing robust protection against voltage surges, reverse polarity, reverse current, and excessive inrush current.
- What is the input voltage range of the LM73100RPWR?
The input voltage range is from 2.7 V to 23 V, with an absolute maximum of 28 V.
- How does the LM73100RPWR protect against reverse current?
The device uses integrated back-to-back FETs to block reverse current flow from output to input at all times.
- What is the response time for overvoltage protection?
The response time for overvoltage protection is typically 1.2 μs.
- Does the LM73100RPWR have an analog current monitor feature?
- What is the operating temperature range of the LM73100RPWR?
The operating temperature range is from -40°C to +125°C.
- Can the LM73100RPWR be used in power MUX/ORing applications?
- What package type is the LM73100RPWR available in?
The device is available in a 10-pin Hot Rod QFN package (2 mm x 2 mm).
- Does the LM73100RPWR have overtemperature protection?
- What are some common applications of the LM73100RPWR?
