產品規格表
UCC28951-Q1
- Qualified for automotive applications
- AEC-Q100 qualified with the following results:
- Device temperature grade 1: –40°C to +125°C ambient operating temperature range
- Device HBM ESD classification level H2
- Device CDM ESD classification level C3B
- Enhanced zero-voltage switching (ZVS) range
- Direct synchronous rectifier (SR) control
- Light-load efficiency management including:
- Burst mode operation
- Discontinuous conduction mode (DCM), dynamic SR on/off control with programmable threshold
- Programmable adaptive delay
- Average- or peak-current mode control with programmable slope compensation and voltage-mode control
- Closed-loop soft-start and enable function
- Programmable switching frequency up to 1 MHz with bidirectional synchronization
- (±3%) cycle-by-cycle current limit protection with hiccup mode support
- 150-µA start-up current
- VDD undervoltage lockout
- Wide temperature range: –40°C to +125°C
The UCC28951-Q1 controller is an enhanced version of the UCC28950-Q1. It is a fully compatible drop-in replacement for the UCC28950-Q1. Refer to application note Making the Correct Choice: UCC28950-Q1 or UCC28951-Q1 to determine which controller to use.The UCC28951-Q1 uses advanced control of the full-bridge in addition to active control of the synchronous rectifier (SR) output stage.
Programmable delays ensure ZVS operation over a wide range of operating conditions, while the load current naturally tunes the switching delays of the secondary-side synchronous rectifiers(SR). This functionality maximizes overall system efficiency.
The 24-pin, TSSOP package complies with RoHS requirements.
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模擬型號
UCC28950 and UCC28951 TINA-TI Startup Reference Design (Rev. A)
SLUM276A.TSC (738 KB) - TINA-TI Reference Design
模擬型號
UCC28950 and UCC28951 TINA-TI Steady State Reference Design (Rev. A)
SLUM277A.TSC (739 KB) - TINA-TI Reference Design
參考設計
TIDA-01407 — 車用 400W、48V 電池輸入、12V 輸出電源參考設計
This reference design is an automotive, 400-W, phase-shifted full-bridge converter which generates the 12-V output from a 48-V car battery. The enhanced phaseshifted full-bridge controller implements programmable delays which ensure zero voltage switching (ZVS) over a wide range of operating (...)
參考設計
PMP20657 — 精巧、高效的單向 48V 至 12V@400W 汽車電源參考設計
The PMP20657 reference design is a compact, efficient unidirectional 48V to 12V @ 400W power converter. The design is pseudo-isolated to protect 12V loads. The phase-shifted full-bridge topology achieves over 95% peak efficiency. Light-load mode enables <100mW standby power with full (...)
| 封裝 | 引腳 | 下載 |
|---|---|---|
| TSSOP (PW) | 24 | 檢視選項 |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點