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參數資料
| 型號： | TEA1751T/N1,518 |
| 廠商： | NXP Semiconductors |
| 文件頁數： | 6/29頁 |
| 文件大小： | 253K |
| 描述： | IC CTRLR GREENCHIP SMPS 16-SOIC |
| 標準包裝： | 2,500 |
| 系列： | GreenChip™ III |
| 模式： | 連續導電（CCM） |
| 頻率 - 開關： | 125kHz |
| 電流 - 啟動： | 60µA |
| 電源電壓： | 0.65 V ~ 22 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 16-SO |
| 包裝： | 帶卷 (TR) |
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TEA1751T_LT_2
?NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02 23 December 2009
6 of 29
NXP Semiconductors
TEA1751T; TEA1751LT
GreenChip III SMPS control IC
As soon as the flyback converter is started, the voltage on the FBCTRL pin is monitored. If
the output voltage of the flyback converter does not reach its intended regulation level in a
predefined time, the voltage on the FBCTRL pin reaches the V
to(FBCTRL)
level and an error
is assumed. The TEA1751 then initiates a safe restart, while in the TEA1751L the
protection is latched.
When one of the protection functions is activated, both converters stop switching and the
V
CC
voltage drops to V
th(UVLO)
. A latched protection recharges the capacitor C
VCC
via the
HV pin, but does not restart the converters. For a safe restart protection, the capacitor is
recharged via the HV pin and the device restarts (see block diagram, Figure 1
).
In the event of an overvoltage protection of the PFC circuit, V
VOSENSE
> V
ovp(VOSENSE)
,
only the PFC controller stops switching until the VOSENSE pin voltage drops below
V
OVP(VOSENSE)
again. Also, if a mains undervoltage is detected
V
VINSENSE
< V
stop(VINSENSE)
, only the PFC controller stops switching until
V
VINSENSE
> V
start(VINSENSE)
again.
When the voltage on pin V
CC
drops below the undervoltage lockout level, both controllers
stop switching and reenter the safe restart mode. In the safe restart mode the driver
outputs are disabled and the V
CC
pin voltage is recharged via the HV pin.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TEA1752LT | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:GreenChip III SMPS control IC |
| TEA1752LT/N1,518 | 功能描述:DC/DC 開關控制器 IC CTLR SMPS SW MODE RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| TEA1752LT/N1/S1518 | 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述: |
| TEA1752T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:The TEA1752T and TEA1752LT combine a controller for Power Factor Correction (PFC) and a flyback controller. |
| TEA1752T/1791/DB/90W,598 | 制造商:NXP Semiconductors 功能描述:- Boxed Product (Development Kits) 制造商:NXP Semiconductors 功能描述:90W notebook adapter Ref |
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