【LTC4370CDE】 A dual power current sharing controller with an integrated MOSFET ideal diode

 The LTC4370CDE is a dual power supply current-sharing controller launched by (ADI), featuring a 16-pin DFN package. Its main features include:

Share the load between two power sources

There is no need to add an input power supply for active control

No need to share the bus

It can isolate reverse current

There is no through current during startup or failure

It operates on the 0V to 18V high-voltage side

Enable input

MOSFET conduction status output

Dual-channel ideal diode mode

16-pin DFN (4mm x 3mm) package and MSOP package

More details

The LTC4370CDE is a dual power current sharing controller with an integrated MOSFET ideal diode. These diodes are responsible for isolating the reverse current and through current during startup and fault conditions. Its forward voltage can be adjusted to share the load current between power supplies. Unlike other current-sharing methods, the LTC4370CDE does not require a shared bus or pin trimming on the power supply.

The maximum MOSFET voltage drop can be set using a resistor. Fast gate connection reduces the load voltage drop during power switching. In the event of a fault or short circuit in the input power supply, a rapid shutdown can suppress the reverse current transient to the greatest extent.

The LTC4370CDE controller can operate within a power supply range of 2.9V to 18V. For a lower power rail voltage, an external power supply needs to be connected to the VCC pin. The enable input can be used to turn off the MOSFET and place the controller in a low-current state. The status output is responsible for indicating whether the MOSFET is in the on or off state. The load sharing function can be disabled to turn the LTC4370CDE into a dual-channel ideal diode controller.

Application field

The LTC4370CDE can control the conduction state of MOSFETs through external signals and supports low-current standby mode. It is widely used in the following fields:

Redundant power supply

High availability systems and servers

Telecommunication and network infrastructure

Key parameters

Product: LTC4370CDE

Type: Current-sharing controller

FET type: N-channel

Ratio - Input: Output: 2:1

Internal switch: None

Delay time - enabled: 400 ns

Delay time - off: 400 ns

Current - Output (maximum value) : -

Current - Power supply: 2.1 mA

Voltage - Power supply: 2.9V to 18V

Application: Redundant power supply, telecommunication infrastructure

Operating temperature: 0°C to 70°C

Installation type: Surface mount type

Package/Housing: 16-WFDFN

Shenzhen Mingjiada Electronics Co., LTD., with nearly 30 years of in-depth industry experience, provides a one-stop supply service system of ADI LTC4370CDE for global customers. If needed, you can contact us through the following ways:

In stock: www.mjdic.com

Telephone: +86 13410018555 (Mr. Chen)

Email: sales@hkmjd.com