參數(shù)資料
型號: TEA1750T/N1,518
廠商: NXP Semiconductors
文件頁數(shù): 14/29頁
文件大小: 163K
描述: IC PFC CONTROLLER DCM16SOIC
標(biāo)準(zhǔn)包裝: 2,500
系列: GreenChip™ III
模式: 間歇導(dǎo)電(DCM)
頻率 - 開關(guān): 100kHz ~ 150kHz
電流 - 啟動: 60µA
安裝類型: 表面貼裝
封裝/外殼: 16-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 16-SO
包裝: 帶卷 (TR)
TEA1750_2
?NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 02  15 December 2008
14 of 29
NXP Semiconductors
TEA1750
GreenChip III SMPS control IC
7.3.3   Current mode control (FBSENSE pin)
Current mode control is used for the yback converter for its good line regulation.
The primary current is sensed by the FBSENSE pin across an external resistor and
compared with an internal control voltage.The internal control voltage is proportional to
the FBCTRL pin voltage.
(1)  Start of new cycle at lowest drain voltage.
(2)  Start of new cycle in a classical Pulse Width Modulation (PWM) system without valley detection.
Fig 9.    Signals for valley switching
drain
secondary
stroke
014aaa027
secondary
ringing
primary
stroke
valley
(2)
(1)
secondary
stroke
oscillator
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TEA1750T-T 功能描述:DC/DC 開關(guān)控制器 GREENCHIPIII RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
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