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參數(shù)資料
| 型號(hào)： | TEA1791T/N1,118 |
| 廠商： | NXP Semiconductors |
| 文件頁數(shù)： | 4/12頁 |
| 文件大?。?/td> | 236K |
| 描述： | IC CTRLR GREENCHIP SYNC 8-SOIC |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 系列： | GreenChip™ |
| 模式： | 間歇導(dǎo)電（DCM） |
| 電源電壓： | 8.5 V ~ 38 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SO |
| 包裝： | 帶卷 (TR) |
TEA1791T
All information provided in this document is subject to legal disclaimers.
?NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 02 7 June 2010
4 of 12
NXP Semiconductors
TEA1791T
GreenChip synchronous rectifier controller
If the secondary stroke of the flyback converter is shorter than 2 約 (typical), the driver
output is disabled. This will guarantee stable operation for very low duty cycles. When the
secondary stroke increases above 2.2 約 (typical), the driver output is again enabled.
7.4 Supply management
All internal reference voltages are derived from a temperature compensated, on-chip
band gap circuit.
7.5 Driver
The driver circuit to the gate of the external power MOSFET has a typical source
capability of 250 mA and a typical sink capability of 2.7 A. This permits fast turn-on and
turn-off of the power MOSFET for efficient operation. The output voltage of the driver is
limited to 10 V (typical). This high output voltage will drive all MOSFET brands to the
minimum on-state resistance.
During start-up conditions (V
CC
< V
startup
) and undervoltage lockout the driver output
voltage is actively pulled low.
Fig 3. Synchronous rectification signals
0 V
12 mV
55 mV
310 mV
0 A
0 A
0 V
V
SRSENSE
V
DRIVER
Primary
current
Secondary
current
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TEA1792AT/1,118 | 制造商:NXP Semiconductors 功能描述:Synchronous Rectifier Controller 8-Pin SO T/R 制造商:NXP Semiconductors 功能描述:TEA1792AT/SO8/REEL13//1 - Tape and Reel 制造商:NXP Semiconductors 功能描述:IC SYNC RECT CONTROLLER 8SOIC |
| TEA1792ATS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:GreenChip synchronous rectifier controller |
| TEA1792ATS/1,115 | 制造商:NXP Semiconductors 功能描述:Synchronous Rectifier Controller 6-Pin TSOP T/R 制造商:NXP Semiconductors 功能描述:TEA1792ATS/SC-74/REEL7//1 - Tape and Reel 制造商:NXP Semiconductors 功能描述:IC SYNC RECT CONTROLLER 6TSOP |
| TEA1792N1 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:GreenChip synchronous rectifier controller |
| TEA1792T/N1,118 | 功能描述:DC/DC 開關(guān)控制器 20V 0.45W 10% RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
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