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參數(shù)資料
| 型號： | TEA1751T/N1,518 |
| 廠商： | NXP Semiconductors |
| 文件頁數(shù)： | 7/29頁 |
| 文件大小： | 253K |
| 描述： | IC CTRLR GREENCHIP SMPS 16-SOIC |
| 標準包裝： | 2,500 |
| 系列： | GreenChip™ III |
| 模式： | 連續(xù)導(dǎo)電（CCM） |
| 頻率 - 開關(guān)： | 125kHz |
| 電流 - 啟動： | 60µA |
| 電源電壓： | 0.65 V ~ 22 V |
| 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) |
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TEA1751T_LT_2
?NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02 23 December 2009
7 of 29
NXP Semiconductors
TEA1751T; TEA1751LT
GreenChip III SMPS control IC
7.1.2 Supply management
All internal reference voltages are derived from a temperature compensated and trimmed
on-chip band gap circuit. Internal reference currents are derived from a temperature
compensated and trimmed on-chip current reference circuit.
7.1.3 Latch input
Pin LATCH is a general purpose input pin, which can be used to switch off both
converters. The pin sources a current I
O(LATCH)
(80 糀 typical). Switching off both
converters is stopped as soon as the voltage on this pin drops below 1.25 V.
At initial start-up the switching is inhibited until the capacitor on the LATCH pin is charged
above 1.35 V (typical). No internal filtering is done on this pin. An internal zener clamp of
2.9 V (typical) protects this pin from excessive voltages.
Fig 4. Start-up sequence, normal operation and restart sequence
V
CC
LATCH
PROTECTION
PFCSENSE
PFCDRIVER
FBSENSE
FBDRIVER
FBCTRL
VOSENSE
V
O
charging VCC
capacitor
starting
converters
normal
operation
protection
restart
soft start
soft start
I
HV
V
start(VINSENSE)
V
to(FBCTRL)
V
startup
V
th(UVLO)
V
trip
V
EN(LATCH)
V
start(fb)
VINSENSE
014aaa156
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TEA1752LT | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:GreenChip III SMPS control IC |
| TEA1752LT/N1,518 | 功能描述:DC/DC 開關(guān)控制器 IC CTLR SMPS SW MODE 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 |
| TEA1752LT/N1/S1518 | 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述: |
| TEA1752T | 制造商:未知廠家 制造商全稱:未知廠家 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 |
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