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| 型号： | TEA1733LT/N1,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 7/21页 |
| 文件大小： | 0K |
| 描述： | IC CTLR SMPS SW SO8 |
| 标准包装： | 1 |
| 系列： | GreenChip™ |
| 输出隔离： | 隔离 |
| 频率范围： | 62kHz ~ 71kHz |
| 输入电压： | 12 V ~ 30 V |
| 输出电压： | 9 V ~ 12 V |
| 功率（瓦特）： | 500mW |
| 工作温度： | -40°C ~ 150°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 标准包装 |
| 相关产品： | 732-2243-ND - TRANS FLYBACK NXP TEA1733 4.0MH 732-2242-ND - TRANS FLYBACK NXP TEA1733 2.2MH |
| 其它名称： | 568-5346-6 |
NXP Semiconductors
TEA1733LT
GreenChip SMPS control IC
The PROTECT input can be used to create overvoltage detection and OTP functions.
A small capacitor can be connected to the pin if the protections on this pin are not used.
An internal clamp of 4.1 V (typical) protects this pin from overvoltages.
7.6 Duty cycle control (CTRL pin)
The output power of the converter is regulated by the CTRL pin. This pin is connected to
an internal 5.4 V supply using an internal 7 k ? resistor.
The CTRL pin voltage sets the peak current which is measured using the ISENSE pin
(see Section 7.10 ). At a low output power the switching frequency is also reduced (see
TEA1733LT/N1 does not trigger any protection when maximum duty cycle is reached.
7.7 Slope compensation (CTRL pin)
A slope compensation circuit is integrated in the IC for CCM. Slope compensation
guarantees stable operation for duty cycles greater than 50 %.
7.8 Overpower timer (OPTIMER pin)
If the OPTIMER pin is connected to capacitor C4 (see Figure 3 ), a temporary overload
situation is allowed. V ctrl(Ipeak) is set by the CTRL. When V ctrl(Ipeak) is above 400 mV, the
I IO(OPTIMER) current (11 ? A typical) is sourced from the OPTIMER pin. If the voltage on the
OPTIMER pin reaches the V prot(OPTIMER) voltage (2.5 V typical) the OverPower Protection
(OPP) is triggered (see Figure 5 ).
I O
V O
400 mV
V ISENSE
V prot(OPTIMER)
V OPTIMER
high load
normal
load
high load
protection
014aaa930
Fig 5.
Overpower delay
TEA1733LT/N1: when the V prot(OPTIMER) voltage is reached, it is latched in the off state.
TEA1733LT
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 8 — 16 July 2013
? NXP B.V. 2013. All rights reserved.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TEA1733MT | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:GreenChip SMPS control IC Adjustable overpower time-out |
| TEA1733MT/N2,118 | 功能描述:DC/DC 开关控制器 GREENCHIP 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 |
| TEA1733P/N1,112 | 功能描述:DC/DC 开关控制器 GREENCHIP 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 |
| TEA1733T | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:GreenChip SMPS control IC |
| TEA1733T/DB/65W,598 | 制造商:NXP Semiconductors 功能描述:- Boxed Product (Development Kits) 制造商:NXP Semiconductors 功能描述:TEA1733 65W reference design 制造商:NXP Semiconductors 功能描述:TEA1733T/DB/65W,598 |
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