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UCC256403DDBR +BOM

LLC resonant controller with ultra-low power and ultra-quiet standby operation

Manufacturer:

TI
Mfr.Part #:

UCC256403DDBR
Datasheet:

UCC256403DDBR Datasheet (PDF)
Pbfree Code:

Yes
Part Life Cycle Code:

Active
Reach Compliance Code:

compliant
ECCN Code:

EAR99
EDA/CAD Models:

Request Free CAD Models for UCC256403DDBR

Email: [email protected]

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Tel: +852 95804164

UCC256403DDBR General Description

The UCC25640x is a fully featured LLC controller with integrated high-voltage gate driver. It has been designed to pair with a PFC controller to provide a complete power system using a minimum of external components. The resulting power system is designed to meet the most stringent requirements for standby power without the need for a separate standby power converter.

UCC25640x provides a highly efficient burst mode with soft-on and soft-off periods to minimize audible noise at standby operation. The burst power level and hysteresis are programmable, simplifying the optimization of efficiency and burst mode operation. Burst mode can also be disabled through pin configuration. UCC25640x uses hybrid hysteretic control to provide best in class line and load transient response.

UCC25640x includes a range of features designed to make LLC converter operation well controlled and protected. It can be used with UCC28056 or UCC28064A PFC controllers, along with UCC24624 synchronous rectifier controller to offer a complete power supply solution.

Key Features

Optimized low power mode and burst mode algorithm
- Burst mode with Soft-ON and Soft-OFF periods
- Minimized audible noise at no load and standby
- User option to disable burst mode
- Opto-coupler low power operation
- Efficiency performance exceeds DoE Level VI and EU CoC Tier-2 External Power Supply Standards
Hybrid hysteretic control (HHC)
- Best-in-class transient response
- Fast exit from burst mode
Robust adaptive dead-time control
Integrated high-voltage gate driver with 0.6 A source and 1.2 A sink capability
Robust capacitive region (ZCS) avoidance scheme
Over temperature, output over voltage, input under voltage protection, three levels of over current protection
Integrated high voltage startup function
Active X-capacitor discharge function

Specifications

Source Content uid	UCC256403DDBR	Pbfree Code	Yes
Part Life Cycle Code	Active	Reach Compliance Code	compliant
ECCN Code	EAR99	HTS Code	8542.31.00.01
Date Of Intro	2019-11-17	Analog IC - Other Type	SWITCHING CONTROLLER
Control Mode	CURRENT-MODE	Control Technique	RESONANT CONTROL
JESD-30 Code	R-PDSO-G14	Moisture Sensitivity Level	2
Number of Functions	1	Number of Terminals	14
Peak Reflow Temperature (Cel)	260	Surface Mount	YES
Temperature Grade	AUTOMOTIVE	Terminal Finish	NICKEL PALLADIUM GOLD
Terminal Form	GULL WING	Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	30