Overview
The LM5060MMX/NOPB, produced by Texas Instruments, is a high-side protection controller designed to provide intelligent control of an external high-side N-channel MOSFET. This device is particularly useful in applications requiring robust protection against various fault conditions, including overvoltage, undervoltage, and overcurrent. It features a wide operating input voltage range from 5.5 V to 65 V, making it versatile for use in different power systems. The LM5060MMX/NOPB is also functional safety capable, with documentation available to aid in functional safety system design, which is crucial for safety-critical applications.
Key Specifications
| Parameter | Description | Typical Value |
|---|---|---|
| Operating Input Voltage Range | 5.5 V to 65 V | 5.5 V to 65 V |
| Quiescent Current in Disabled Mode | Less than 15 µA | < 15 µA |
| Gate Drive Current | 24 µA (typical) | 24 µA |
| UVLO Threshold | Typically 1.6 V | 1.6 V |
| OVP Threshold | Typically 2.0 V | 2.0 V |
| Package Type | 10-Lead VSSOP | 10-Lead VSSOP |
| Body Size | 3.00 mm × 3.00 mm | 3.00 mm × 3.00 mm |
Key Features
- Wide operating input voltage range: 5.5 V to 65 V
- Functional safety capable with supporting documentation
- Less than 15-µA quiescent current in disabled mode
- Controlled output rise time for safe connection of capacitive loads
- Charge pump gate driver for external N-Channel MOSFET
- Adjustable Undervoltage Lockout (UVLO) with hysteresis
- Programmable fault detection delay time using an external timer capacitor
- MOSFET latched off after load fault is detected
- Active low open drain POWER GOOD (nPGD) output
- Adjustable input Overvoltage Protection (OVP)
- Immediate restart after overvoltage shutdown
Applications
- Automotive body electronics
- Industrial power distribution and control
Q & A
- What is the operating input voltage range of the LM5060MMX/NOPB?
The operating input voltage range is from 5.5 V to 65 V.
- What is the quiescent current in the disabled mode of the LM5060MMX/NOPB?
The quiescent current is less than 15 µA in the disabled mode.
- How does the LM5060MMX/NOPB handle overvoltage protection?
The device features adjustable input Overvoltage Protection (OVP) with a typical threshold of 2.0 V. When the OVP pin voltage exceeds this threshold, the gate of the external MOSFET is discharged.
- What is the purpose of the UVLO pin on the LM5060MMX/NOPB?
The UVLO pin is used for under-voltage lock-out and can also serve as a second enable input for systems requiring safety redundancy.
- How is the fault detection delay time programmed in the LM5060MMX/NOPB?
The fault detection delay time is programmed using an external timer capacitor connected to the TIMER pin.
- What happens when a fault condition persists longer than the allowed fault delay time?
The MOSFET is latched off until either the enable input or the UVLO input is toggled low and then high.
- What is the function of the nPGD output pin?
The nPGD pin is an active low open drain output that indicates the fault status of the external MOSFET.
- How can the output voltage rise time be adjusted?
The output voltage rise time can be adjusted by adding external gate capacitance to the GATE pin.
- What are the typical applications of the LM5060MMX/NOPB?
The device is typically used in automotive body electronics and industrial power distribution and control.
- Is the LM5060MMX/NOPB functional safety capable?
Yes, the device is functional safety capable, and documentation is available to aid in functional safety system design.
