UCC25800-Q1

Name: UCC25800-Q1
Brand: TI
SKU: UCC25800-Q1
Price: 2.009 USD

활성

절연 바이어스 전원 공급용 초저 EMI 변압기 드라이버

지금 주문

데이터 시트

document-pdfAcrobat UCC25800-Q1 Ultra-low EMI Transformer Driver for Isolated Bias Supplies datasheet (Rev. C) (영어) PDF | HTML

UCC25800-Q1

활성

데이터 시트

지금 주문

제품 상세 정보

Rating

Automotive

Operating temperature range (°C)

-40 to 125

TI functional safety category

Functional Safety-Capable

Topology

Resonant LLC

Iout (max) (A)

1

Vin (min) (V)

9

Vin (max) (V)

34

Switching frequency (min) (kHz)

100

Switching frequency (max) (kHz)

1200

Features

Adjustable switching frequency, Current limiting, Enable, Resonant, Soft start, Thermal shutdown

Control mode

Open-loop control

Duty cycle (max) (%)

50

Switch current limit (typ) (A)

1

Rating

Automotive

Operating temperature range (°C)

-40 to 125

TI functional safety category

Functional Safety-Capable

Topology

Resonant LLC

Iout (max) (A)

1

Vin (min) (V)

9

Vin (max) (V)

34

Switching frequency (min) (kHz)

100

Switching frequency (max) (kHz)

1200

Features

Adjustable switching frequency, Current limiting, Enable, Resonant, Soft start, Thermal shutdown

Control mode

Open-loop control

Duty cycle (max) (%)

50

Switch current limit (typ) (A)

1

HVSSOP (DGN)

8

14.7 mm² 3 x 4.9

High-efficiency half-bridge transformer driver
Ultra-low EMI with low interwinding capacitance
Smaller and lower-cost transformer
- Programmable frequency: 0.1 MHz to 1.2 MHz
Wide input voltage range: 9 V to 34 V
- 9 W from 34-V input
- 6 W from 24-V input
- 4 W from 15-V input
Automatic dead-time adjustment with maximum dead-time programming
External clock synchronization for low noise
Robust protection features
- Undervoltage lockout (UVLO)
- Programmable over-current protection (OCP)
- Input overvoltage protection (OVP)
- Over temperature protection (TSD)
- Integrated soft-start to reduce in-rush current
- External disable function with fault-code output
AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, T A
Functional Safety-Capable
- Documentation available to aid functional safety system design
8-Pin DGN package with thermal pad

High-efficiency half-bridge transformer driver
Ultra-low EMI with low interwinding capacitance
Smaller and lower-cost transformer
- Programmable frequency: 0.1 MHz to 1.2 MHz
Wide input voltage range: 9 V to 34 V
- 9 W from 34-V input
- 6 W from 24-V input
- 4 W from 15-V input
Automatic dead-time adjustment with maximum dead-time programming
External clock synchronization for low noise
Robust protection features
- Undervoltage lockout (UVLO)
- Programmable over-current protection (OCP)
- Input overvoltage protection (OVP)
- Over temperature protection (TSD)
- Integrated soft-start to reduce in-rush current
- External disable function with fault-code output
AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, T A
Functional Safety-Capable
- Documentation available to aid functional safety system design
8-Pin DGN package with thermal pad

The UCC25800-Q1 ultra-low EMI transformer driver integrates the switching power stage, the control, and the protection circuits to simplify isolated bias supply designs. It allows the design to utilize a transformer with higher leakage inductance, but much smaller parasitic primary-to-secondary capacitance. This low-capacitance transformer design enables an order of magnitude reduction in the common-mode current injection through the bias transformer. This makes the transformer driver an ideal solution for the isolated bias supply in various automotive applications to minimize the EMI noise caused by the high-speed switching devices. The soft-switching feature further reduces the EMI noise.

The transformer driver has a programmable frequency range of 100 kHz to 1.2 MHz. This high switching frequency reduces the transformer size and footprint, as well as the overall cost of the bias supply. The integrated SYNC function allows the system bias supplies to synchronize with an external clock signal, further reducing the system level noise.

The dead-time adjusts automatically to minimize the conduction loss and simplify the design. The programmable maximum dead-time ensures power stage design flexibility.

With the integrated, low-resistance switching power stage, the transformer driver can achieve a 6-W design with 24-V input, and up to 9-W from 34-V input. With a fixed input voltage, the open-loop control also helps the output regulation to remain ±5% when the load is above 10%.

The programmable overcurrent protection (OCP) allows flexibility on the power stage design to minimize the transformer size. The protection features such as adjustable OCP, input OVP, TSD and the protection from pin faults ensure robust operation. A fixed 1.5-ms soft-start period reduces the inrush current during start-up and fault recovery.

The transformer driver also provides a dedicated multi-function pin for external disabling, and fault code reporting. The fault code reporting sends the fault code once the bias supply is in the protection mode.

The UCC25800-Q1 transformer driver is offered in an 8-pin DGN package with the thermal pad to enhance its thermal handling capability.

The UCC25800-Q1 ultra-low EMI transformer driver integrates the switching power stage, the control, and the protection circuits to simplify isolated bias supply designs. It allows the design to utilize a transformer with higher leakage inductance, but much smaller parasitic primary-to-secondary capacitance. This low-capacitance transformer design enables an order of magnitude reduction in the common-mode current injection through the bias transformer. This makes the transformer driver an ideal solution for the isolated bias supply in various automotive applications to minimize the EMI noise caused by the high-speed switching devices. The soft-switching feature further reduces the EMI noise.

The transformer driver has a programmable frequency range of 100 kHz to 1.2 MHz. This high switching frequency reduces the transformer size and footprint, as well as the overall cost of the bias supply. The integrated SYNC function allows the system bias supplies to synchronize with an external clock signal, further reducing the system level noise.

The dead-time adjusts automatically to minimize the conduction loss and simplify the design. The programmable maximum dead-time ensures power stage design flexibility.

With the integrated, low-resistance switching power stage, the transformer driver can achieve a 6-W design with 24-V input, and up to 9-W from 34-V input. With a fixed input voltage, the open-loop control also helps the output regulation to remain ±5% when the load is above 10%.

The programmable overcurrent protection (OCP) allows flexibility on the power stage design to minimize the transformer size. The protection features such as adjustable OCP, input OVP, TSD and the protection from pin faults ensure robust operation. A fixed 1.5-ms soft-start period reduces the inrush current during start-up and fault recovery.

The transformer driver also provides a dedicated multi-function pin for external disabling, and fault code reporting. The fault code reporting sends the fault code once the bias supply is in the protection mode.

The UCC25800-Q1 transformer driver is offered in an 8-pin DGN package with the thermal pad to enhance its thermal handling capability.

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13개 모두 보기

	유형	직함		날짜
*	Data sheet	UCC25800-Q1 Ultra-low EMI Transformer Driver for Isolated Bias Supplies datasheet (Rev. C)	PDF \| HTML	2023/08/14
	White paper	Isolated Bias Power Supply Architecture for HEV and EV Onboard Chargers	PDF \| HTML	2024/11/27
	White paper	Low-Cost, High-Performance Auxiliary Power Supply Solution for 11KW OBC	PDF \| HTML	2024/07/09
	White paper	신뢰할 수 있는 합리적 가격대의 절연 기술 개발과 관련한 고전압 설계 문제의 해결 (Rev. C)	PDF \| HTML	2024/05/16
	Technical article	8W 이하의 간단한 절연 전원 옵션 2가지	PDF \| HTML	2024/03/22
	Technical article	Increasing power density with an integrated GaN solution	PDF \| HTML	2022/03/14
	Technical article	Misconceptions about EV charging	PDF \| HTML	2022/02/24
	More literature	Isolated bias supply solutions for isolated gate drivers		2021/12/15
	More literature	Isolated gate-driver bias-supply design considerations PPT		2021/12/02
	Application note	Bias Supply Design for Isolated Gate Driver Using UCC25800-Q1 (Rev. A)	PDF \| HTML	2021/12/01
	User guide	Using the UCC25800EVM-037 2-W LLC Half-Bridge Converter with Pre-Regulator (Rev. A)	PDF \| HTML	2021/10/12
	Functional safety information	UCC25800-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA	PDF \| HTML	2021/09/01
	Certificate	UCC25800EVM-037 EU RoHS Declaration of Conformity (DoC)		2020/12/16

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