LT4363CMS-1#PBF The LT4363CMS-1#PBF from Analog Devices is a high voltage surge stopper with current limit functionality. It is designed to protect load circuitry from voltage transients.
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LT4363CMS-1#PBF

Available from 1 distributors
Mfr Name: LT
LT
The LT4363CMS-1#PBF from Analog Devices is a high voltage surge stopper with current limit functionality. It is designed to protect load circuitry from voltage transients.
✓ Total Stock: 470 pcs

LT4363CMS-1#PBF Available from 1 distributor

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LT4363CMS-1#PBF Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Halogen Free
SVHC Present
Storage Temperature

LT4363CMS-1#PBF Description

Short technical summary and product information.

The LT4363CMS-1#PBF is an overvoltage protection regulator from Analog Devices that drives an external N-channel MOSFET. It operates across a wide supply voltage range of 4V to 80V and can withstand voltages down to -60V without damage. This device is suitable for automotive applications, including cold cranking conditions, due to its low 4V power supply requirement.

 

The LT4363 features an internal charge pump to turn on the N-channel MOSFET with minimal power loss. It includes an active current limit circuit that monitors voltage across an optional sense resistor, regulating the output to protect the MOSFET. The device also incorporates a fault timer that allows the load to continue functioning during short transient events.

 

Key electrical specifications include an internal reference voltage of 1.275V and current limit thresholds of 50mV (above 2V OUT) and 25mV (below 2V OUT). Resetting the part involves pulling the SHDN pin low for at least 100µs with a slew rate of at least 10V/ms.

 

This component is supplied in a CMS package, suitable for various power management applications requiring robust protection against voltage surges and overcurrent conditions.

LT4363CMS-1#PBF Quick Information

Product Type: Hot Swap Controller
Series: LT4363
Canonical Name: LT4363CMS-1#PBF High Voltage Surge Stopper with Current Limit
Subcategory: Power Management ICs

LT4363CMS-1#PBF Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

LT4363CMS-1#PBF Features

  • Protects loads from high voltage surges.
  • Operates from 4V to 80V supply.
  • Internal active current limit circuit.
  • Fault timer for transient event tolerance.
  • Suitable for automotive cold cranking.

LT4363CMS-1#PBF Applications

  • Automotive power systems protection.
  • High voltage transient suppression.
  • Load circuit protection during surges.
  • Power management in vehicles.

LT4363CMS-1#PBF FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the LT4363CMS-1#PBF?

The LT4363CMS-1#PBF operates from a supply voltage range of 4V to 80V.

What is the maximum overvoltage protection provided by the LT4363CMS-1#PBF?

The LT4363CMS-1#PBF provides overvoltage protection up to 80V.

What is the undervoltage protection limit for the LT4363CMS-1#PBF?

The LT4363CMS-1#PBF can be pulled below ground potential by up to 60V without damage.

What is the current limit setting when the output voltage is above 2V?

When the OUT pin potential is above 2V, the current limit is set to 50mV.

What is the current limit setting during a severe output short (OUT below 2V)?

During a severe output short (OUT below 2V), the servo sense voltage is reduced to 25mV.

What is the internal reference voltage of the LT4363CMS-1#PBF?

The internal reference voltage for the LT4363CMS-1#PBF is 1.275V.

How do you reset the LT4363CMS-1#PBF?

To reset the part, pull the SHDN pin low for at least 100µs, then pull high with a slew rate of at least 10V/ms.

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