参数资料
| 型号： | TEA1752LT/N1,518 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 6/34页 |
| 文件大小： | 0K |
| 描述： | IC CTLR SMPS SW MODE 16SOIC |
| 标准包装： | 1 |
| 输出隔离： | 隔离 |
| 输入电压： | 14 V ~ 38 V |
| 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： | 标准包装 |
| 其它名称： | 568-5962-6 |
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NXP Semiconductors
TEA1752T; TEA1752LT
GreenChip III SMPS control IC
7. Functional description
7.1 General control
The TEA1752(L)T contains controllers for a power factor correction circuit and for a
D1
S1
Cbus
CSS1
RSS1
T2
D2
COUT
RAUX1
RS1
RSENSE1
S2
PFCDRIVER
PFCSENSE
VOSENSE
HV
FBTIMER
PFCAUX 12
8
11
9
16
13
10
FBSENSE
PFCCOMP
6
RS2
RSS2
compensation
VINSENSE
7
TEA1752(L)T
CSS2
RSENSE2
RAUX2
4 FBAUX
1
V CC
FBCTRL
3
2
14
5
LATCH
GND
PFCTIMER
CVCC
RLOOP
Θ
CTIMEOUT
014aaa750
Fig 3.
Typical configuration
7.1.1 Start-up and UnderVoltage LockOut (UVLO)
Initially the capacitor on the V CC pin is charged from the high voltage mains via the HV pin.
If V CC is lower than V trip , the charge current is low. This protects the IC if the V CC pin is
shorted to ground. The charge current above V trip is increased until V CC reaches V th(UVLO)
to achieve a short start-up time. If V CC is between V th(UVLO) and V startup , the charge current
is low again, ensuring a low duty cycle during fault conditions.
The control logic activates the internal circuitry and switches off the HV charge current
when the voltage on pin V CC passes the V startup level. The LATCH pin current source is
then activated and the soft start capacitors on pins PFCSENSE and FBSENSE are
charged and the clamp circuit on pin PFCCOMP is activated. When the LATCH pin
voltage exceeds V en(LATCH) , the PFCCOMP pin voltage exceeds V en(PFCCOMP) and the soft
start capacitor on pin PFCSENSE pin is charged, the PFC circuit is activated. The flyback
TEA1752T_LT
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 02 — 24 June 2010
? NXP B.V. 2010. All rights reserved.
6 of 34
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TEA1752T | 制造商:未知厂家 制造商全称:未知厂家 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 |
| TEA1752T/N1,518 | 功能描述:DC/DC 开关控制器 IC CTLR SMPS SW MODE 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 |
| TEA1753 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:The GreenChip III is the third generation of green Switched Mode Power Supply (SMPS) controller ICs. |
| TEA1753LT/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 |
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