UCC25705DTR

Frequency - Switching:	1MHz
Base Part Number:	UCC25705
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm 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:	Tape & Reel (TR)

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UCC25705DTR Application Field and Working Principle

PMIC - Voltage Regulators - DC DC Switching Controllers are a popular choice for many applications due to their high voltage output capacity, low power consumption, and reliability. The UCC25705DTR is one of these highly efficient units, utilizing a fixed frequency consisting of a voltage feedback system for high accuracy regulation.

Applications

The UCC25705DTR offers designers a wide range of applications as an energy-saving device. It can be used in a variety of battery-powered applications including telecommunication, motor control, medical equipment, portable media players, or other energy-critical applications. This device is also ideal for automotive system applications, with verification testing demonstrating that it meets the AEC-Q100-E criteria for automotive-grade conditions. The UCC25705DTR features a wide input voltage range of up to 16V, making them well suited for use in industrial power supplies, laptops, and other portable devices.

Working Principle

The UCC25705DTR is a switch-mode current-mode controller that can provide a stable output voltage. It features a voltage-mode control (VMC) system, in which a voltage reference is applied to the comparator to monitor the output voltage. The controller then responds by adjusting the pulse width modulation (PWM) width to maintain the desired output voltage.The controller also features an adjustable oscillator frequency, permitting flexible applications. The frequency can be changed to optimize the efficiency and system performance in relation to the component values and load. The UCC25705DTR delivers excellent transient performance with a minimum load of 5% at a minimum amplitude of 100mV, eliminating the need for bulky components in the design system. Additionally, the device offers short-circuit protection and over-voltage protection for maximum product safety.

Conclusion

PMIC - Voltage Regulators - DC DC Switching Controllers like the UCC25705DTR can provide a high voltage output capacity and low power consumption but also offer a reliable performance and accurate regulation. With its wide input voltage range and adjustable oscillator frequency, the UCC25705DTR is an excellent choice for a variety of battery-powered applications and automotive system applications. As an energy-saving device, the UCC25705DTR shows excellent transient performance and protection features, ensuring maximum product safety and system performance.

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