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參數(shù)資料
| 型號： | TEA1761T/N2,118 |
| 廠商： | NXP Semiconductors |
| 文件頁數(shù)： | 5/13頁 |
| 文件大小： | 75K |
| 描述： | IC CTRLR GREENCHIP SYNC 8-SOIC |
| 標準包裝： | 2,500 |
| 系列： | GreenChip™ |
| 模式： | 間歇導電（DCM） |
| 電源電壓： | 8.6 V ~ 38 V |
| 工作溫度： | -20°C ~ 150°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應商設(shè)備封裝： | 8-SO |
| 包裝： | 帶卷 (TR) |
TEA1761T_2
?NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 25 April 2007
5 of 13
NXP Semiconductors
TEA1761T
GreenChip synchronous rectier controller
7.4 Opto output
The opto output is intended to drive an opto coupler (see
Figure
5). The opto output has
an open-drain output conguration. The maximum sink current is internally limited to 5 mA
(typical). The output is linearly controlled via the V
SENSE
and I
SENSE
input pins. An
over-temperature situation will switch the opto output to its maximum sink current.
During start-up (V
CC
< V
startup
) and undervoltage lock-out the output is disabled.
7.5 Supply management
All (internal) reference voltages are derived from a temperature compensated, on-chip
band gap circuit. The reference voltage is trimmed to an accuracy within 1 %.
7.6 OverTemperature Protection (OTP)
The IC provides an accurate internal overtemperature protection of 150 癈 (typical). The
IC will maximize the current of pin OPTO as soon as the internal temperature limit is
reached. The opto signal can be used on the primary side of the yback controller to
activate the SMPS protection or limit the output power. As soon as the overtemperature
condition is solved, normal operation will resume.
7.7 Driver
The driver circuit to the gate of the external power MOSFET has a source capability of
typically 250 mA and a sink capability of typically 2.7 A. This permits fast turn-on and
turn-off of the power MOSFET for efcient 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 lock-out the driver output
voltage is actively pulled low.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TEA1762T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:GreenChip synchronous rectifier controller |
| TEA1762T/N2,118 | 功能描述:DC/DC 開關(guān)控制器 SYN Rectifier Controller 14-Pin 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 安裝風格: 封裝 / 箱體:CPAK |
| TEA1762T/N2/DG,118 | 功能描述:DC/DC 開關(guān)控制器 3.5V 5mA 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 安裝風格: 封裝 / 箱體:CPAK |
| TEA1771 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:GreenChip PC primary control IC |
| TEA1771T/N2,518 | 功能描述:DC/DC 開關(guān)控制器 TEA1771T/SO24/REEL13DP//N2 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 安裝風格: 封裝 / 箱體:CPAK |
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