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| 型号： | TEA1733LT/N1,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 9/21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
t leb
V sense(max)
TEA1733LT
GreenChip SMPS control IC
V ISENSE
t
014aaa932
Fig 8.
Leading edge blanking using pin ISENSE
7.10 Overpower or high/low line compensation (VINSENSE and
ISENSE pins)
The overpower compensation function can be used to realize a maximum output power
which is nearly constant over the full input mains.
The overpower compensation circuit measures the input voltage on the VINSENSE pin
and outputs a proportionally dependent current on the ISENSE pin. The DC voltage
across the soft start resistor limits the maximum peak current on the current sense
resistor.
At low output power levels the overpower compensation circuit is switched off
(See Figure 9 ).
2
1.7
I ISENSE
( μ A)
0.68
1
2
3
4
V VINSENSE (V)
014aaa933
Fig 9.
Overpower compensation using pins VINSENSE and ISENSE
7.11 Soft start-up (ISENSE pin)
To prevent audible noise during start-up or a restart condition, a soft start is made. Before
the converter starts, the soft start capacitor C6 (see Figure 3 ) on the ISENSE pin is
charged. When the converter starts switching, the primary peak current slowly increases
as the soft start capacitor discharges through the soft start resistor (R6, see Figure 3 ).
The soft start time constant is set by the soft start capacitor value chosen. The soft start
resistor value must also be taken into account, but this value is typically defined by the
overpower compensation (see Section 7.10 ).
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.
9 of 21
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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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