参数资料
| 型号： | TEA1753LT/N1,518 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 19/32页 |
| 文件大小： | 0K |
| 描述： | IC CTLR SMPS SW MODE 16SO |
| 标准包装： | 2,500 |
| 系列： | GreenChip™ III |
| 输出隔离： | 隔离 |
| 频率范围： | 100kHz ~ 150kHz，250kHz |
| 输入电压： | 16 V ~ 38 V |
| 输出电压： | 650V |
| 功率（瓦特）： | 600mW |
| 工作温度： | -40°C ~ 150°C |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SO |
| 包装： | 带卷 (TR) |
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NXP Semiconductors
TEA1753LT
HV start-up flyback controller with integrated PFC controller
Accurate OVP detection is made possible by adjusting the value of R FBAUX to the turns
ratio of the transformer.
7.3.9 Overcurrent protection (FBSENSE pin)
The primary peak current in the transformer is measured accurately cycle-by-cycle using
the external sense resistor R sense2 . The OCP circuit limits V FBSENSE to a level set by V fbctrl
(see also Section 7.3.3 ). The OCP detection is suppressed during the leading-edge
blanking period, t leb , to prevent false triggering due to switch-on spikes.
t leb
OCP level
V FBSENSE
t
014aaa022
Fig 15. OCP leading edge blanking
7.3.10 Overpower protection
During the primary stroke of the flyback converter, the input voltage is measured by
sensing the current that is drawn from the FBAUX pin.
The current information is used to limit the maximum peak current of the flyback
converter, measured from the FBSENSE pin. The internal compensation is such, that a
maximum output power is realized which is almost independent of the input voltage.
V FBSENSE
(V)
0.65
0.46
? 360
I FBAUX ( μ A)
? 100
0
014aaa749
Fig 16. Overpower protection curve
7.3.11 Driver (FBDRIVER pin)
The driver circuit to the power MOSFET gate has a current sourcing capability of ? 500 mA
and a current sink capability of 1.2 A. These capabilities permit fast switching of the power
MOSFET for efficient operation.
TEA1753LT
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 24 August 2012
? NXP B.V. 2012. All rights reserved.
19 of 32
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TEA1753T | 制造商:未知厂家 制造商全称:未知厂家 功能描述:The TEA1753T combines a controller for Power Factor Correction (PFC) and a flyback controller. |
| TEA1753T/N1 | 制造商:NXP Semiconductors 功能描述:SMPS CNTRL QR FLYBACK & QR PFCSO16 制造商:NXP Semiconductors 功能描述:SMPS CNTRL, QR FLYBACK & QR PFC,SO16 |
| TEA1753T/N1,518 | 功能描述:DC/DC 开关控制器 GreenChip III SMPS control IC RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| TEA1753T/N1518 | 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述: |
| TEA1755LT/1Y | 制造商:NXP Semiconductors 功能描述:Switched Mode Power Supply Controller 16-Pin SOIC T/R 制造商:NXP Semiconductors 功能描述:TEA1755LT/SO16/REEL13DP//1 - Tape and Reel 制造商:NXP Semiconductors 功能描述:IC SMPS CONTROLLER 16SOIC |
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