UCC25705DGKG4 Allicdata Electronics
Allicdata Part #:

UCC25705DGKG4-ND

Manufacturer Part#:

UCC25705DGKG4

Price: $ 1.42
Product Category:

Integrated Circuits (ICs)

Manufacturer: Texas Instruments
Short Description: IC REG CTRLR MULT TOP 8VSSOP
More Detail: Boost, Flyback, Forward Converter Regulator Positi...
DataSheet: UCC25705DGKG4 datasheetUCC25705DGKG4 Datasheet/PDF
Quantity: 1000
240 +: $ 1.29116
Stock 1000Can Ship Immediately
$ 1.42
Specifications
Frequency - Switching: 1MHz
Base Part Number: UCC25705
Supplier Device Package: 8-VSSOP
Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Operating Temperature: -40°C ~ 85°C (TA)
Control Features: Current Limit
Serial Interfaces: --
Clock Sync: No
Synchronous Rectifier: No
Duty Cycle (Max): 93%
Series: --
Voltage - Supply (Vcc/Vdd): 8.2 V ~ 15 V
Output Phases: 1
Number of Outputs: 1
Topology: Boost, Flyback, Forward Converter
Output Configuration: Positive, Isolation Capable
Function: Step-Up, Step-Up/Step-Down
Output Type: Transistor Driver
Part Status: Active
Packaging: Tube 
Description

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The UCC25705DGKG4 belongs to a family of power management integrated circuit (PMIC) voltage regulators, in particular to the DC DC switching controllers. It is a 3.0V to 5.5V input voltage and 5.0V output voltage synchronous monolithic step-down converter that offers wide input voltage range, short current limiting time and integrated power switches. The UCC25705DGKG4 is used to determine the operating parameters of its external switches and synchronize the controlled current in the operating phase.

The UCC25705DGKG4 is a single-phase synchronous buck controller that drives a single external power switch. The controller operates with low output voltages (down to 0.5V) and can provide output currents up to 3A. It supports both forced PWM and Automatic PWM control modes, allowing the user to have precise current and voltage regulation.

The main application field of the UCC25705DGKG4 is automotive applications, such as windshield wiper, rearview mirror and heating systems. The device can also be used in battery management systems, liquid pumps, gaming systems and air conditioning system. The device is optimized for cost and space efficiency in multi-phase applications.

The UCC25705DGKG4 working principle is based on the step-down buck converter: it reduces an input voltage by controlling the duty cycle of a power switch. The UCC25705DGKG4 operates in the dead time control mode, providing a precise control of the duty cycle. It features two next-generation error amplifiers for precise current and voltage regulation, a wide voltage range adaptive dead time and internal 1.15V and 5.0V reference voltages.

To enable efficient and smooth operation in dead time control mode, the UCC25705DGKG4 features two comparators that monitor the signal at the bottom of the external switch, the current limitation signal, and the signal level at the CT pin. When these signals exceed the provided thresholds, the controller halts the dead time control cycle until the voltage drops below the provided threshold.

The UCC25705DGKG4 also features programmable over current protection (OCP), adjustable output voltage and an adjustable slew rate control. These features help optimizing device performance and minimize component count. The OCP helps especially in protecting the controller and the external switch from over current conditions. The device is also over-voltage protected.

In addition, the UCC25705DGKG4 features over-temperature protection, UVLO and programmable fault handling. This ensures that the device and the external switch are safe from inrush current at power-up and any unexpected abnormal conditions.

The UCC25705DGKG4 is an integrating, cost-effective and efficient DC-DC converter suited for power management in automotive and a variety of other applications.

The specific data is subject to PDF, and the above content is for reference

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