Overview
The IPS4260L, produced by STMicroelectronics, is a quad low-side intelligent power switch designed for high-speed applications. This monolithic device can drive four independent capacitive, resistive, or inductive loads, each connected to the supply voltage. It features integrated protections and diagnostic capabilities, making it suitable for robust and reliable power management in various industrial and automotive applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | -0.3 to 55 | V |
| Operating Voltage Range | 8 to 50 | V |
| Switching Frequency (fSW) | Up to 250 kHz | |
| Rise Time (tr) | 450 to 700 ns | ns |
| Fall Time (tf) | 500 to 600 ns | ns |
| Propagation Delay Time (tPD) | 400 to 700 ns | ns |
| On-state Resistance (RDS(ON)) | 260 to 560 mΩ | mΩ |
| Junction Temperature (TJ) | -40 to 150 °C | °C |
| Thermal Shutdown Threshold (TJSD) | 160 °C | °C |
| Current Limitation Level (ILIM) | Programmable via external resistor | A |
| Cut-off Delay Time (tcoff) | Programmable via external resistor | ms |
Key Features
- Four independent protected channels with high-speed operation (up to 250 kHz)
- Integrated catch diodes for clamping turn-off transients generated by inductive loads
- Programmable current limitation and cut-off features via external resistors
- Thermal shutdown protection and overtemperature protection
- Undervoltage lock-out and open load detection in off-state
- Extensive diagnostic capabilities through open drain pins (FLT, OL, and INx)
- Channels can be paralleled to reduce power dissipation
Applications
- Industrial automation and control systems
- Automotive systems (e.g., battery management, motor control)
- Power tools and equipment
- Medical devices requiring robust power management
- Consumer electronics with high reliability requirements
Q & A
- What is the operating voltage range of the IPS4260L?
The IPS4260L operates within a voltage range of 8 to 50 volts.
- How many independent channels does the IPS4260L have?
The IPS4260L has four independent protected channels.
- What is the purpose of the integrated catch diodes in the IPS4260L?
The integrated catch diodes clamp the turn-off transients generated by inductive loads.
- How is the current limitation level set in the IPS4260L?
The current limitation level is set by an external resistor connected between the ILIM pin and the SGND ground plane.
- What is the thermal shutdown threshold of the IPS4260L?
The thermal shutdown threshold is 160 °C.
- Can the channels of the IPS4260L be paralleled?
- What is the purpose of the FLT pin in the IPS4260L?
The FLT pin is used for diagnostic purposes and reports faults such as thermal shutdown and cut-off protection.
- How does the open load detection feature work in the IPS4260L?
The open load detection feature detects if the load is disconnected from the OUTx pin when in OFF-state and reports the fault on the OL pin.
- What is the significance of the CoD pin in the IPS4260L?
The CoD pin is used to program the cut-off delay time during overcurrent operation and can be disabled by shorting it to the SGND ground plane.
- What are some typical applications of the IPS4260L?
The IPS4260L is typically used in industrial automation, automotive systems, power tools, medical devices, and consumer electronics requiring high reliability.
