SRK1000B集成電路（IC）的電源控制器監(jiān)視器規(guī)格書PDF中文資料
| 廠商型號(hào) |
SRK1000B |
| 參數(shù)屬性 | SRK1000B 封裝/外殼為SOT-23-6；包裝為卷帶（TR）剪切帶（CT）Digi-Reel? 得捷定制卷帶；類別為集成電路（IC）的電源控制器監(jiān)視器；SRK1000B應(yīng)用范圍：適配器，電池充電器，USB 電源；產(chǎn)品描述：ADAPTIVE SYNCHRONOUS RECTIFICATI |
| 功能描述 | Adaptive synchronous rectification controller for flyback converter |
| 封裝外殼 | SOT-23-6 |
| 文件大小 |
1.29862 Mbytes |
| 頁(yè)面數(shù)量 |
27 頁(yè) |
| 生產(chǎn)廠商 | STMicroelectronics |
| 企業(yè)簡(jiǎn)稱 |
STMICROELECTRONICS【意法半導(dǎo)體】 |
| 中文名稱 | 意法半導(dǎo)體集團(tuán)官網(wǎng) |
| 原廠標(biāo)識(shí) |  |
| 數(shù)據(jù)手冊(cè) | |
| 更新時(shí)間 | 2025-1-16 18:30:00 |
SRK1000B規(guī)格書詳情
Features
? Secondary side synchronous rectification
controller optimized for flyback converter
? Suitable for QR and mixed CCM/DCM fixed
frequency operation
? Wide Vcc operating voltage range 3.75 to 32 V
? CC regulation operation down to 2 V output
supported
? Very low quiescent current in low consumption
mode (160 μA)
? High-voltage sensing input for SR MOSFET
drain-source voltage (100 V AMR)
? Operating frequency up to 300 kHz
? High-current gate-drive output for N-MOSFET
? Fast turn-on with minimum delay time and
adaptive turn-off logic
? Programmable min. TON and fixed min. TOFF (3
options: SRK1000, SRK1000A, SRK1000B)
? Low consumption mode entry by primary side
burst-mode detection or by detection of SR
MOSFET conduction lower than programmed
min TON
? SOT23-6L package
Applications
? Battery chargers / quick chargers
? Adapters
? USB power delivery (profile 3)
Description
The SRK1000 is a controller intended for
secondary side synchronous rectification (SR) in
flyback converters, suitable for operation in QR
and mixed CCM/DCM fixed frequency circuits.
It provides a high-current gate-drive output,
capable of driving N-channel Power MOSFETs.
The control scheme of this IC is such that the SR
MOSFET is switched on as soon as current starts
flowing through its body diode and it is then
switched off as current approaches zero.
The fast turn-on, with minimum delay, and the
innovative adaptive turn-off logic allow
maximizing the conduction time of the SR
MOSFET and eliminating the effect of parasitic
inductance in the circuit.
The device enters low consumption mode when it
detects primary controller burst-mode operation,
or when the SR MOSFET conduction becomes
lower than the programmed minimum TON. In this
way, converter efficiency improves at light load
where synchronous rectification is no longer
beneficial.
After the converter restarts switching or the IC
detects that the current conduction in the rectifiers
has increased 20 above the min TON
programmed value, the IC exits low consumption
mode and resumes switching operation.
產(chǎn)品屬性
更多- 產(chǎn)品編號(hào)：
SRK1000BTR
- 制造商：
STMicroelectronics
- 類別：
集成電路（IC） > 電源控制器，監(jiān)視器
- 包裝：
卷帶（TR）剪切帶（CT）Digi-Reel? 得捷定制卷帶
- 應(yīng)用：
適配器，電池充電器，USB 電源
- 電壓 - 供電：
3，75V ~ 32V
- 工作溫度：
-40°C ~ 150°C（TJ）
- 安裝類型：
表面貼裝型
- 封裝/外殼：
SOT-23-6
- 供應(yīng)商器件封裝：
SOT-23-6
- 描述：
ADAPTIVE SYNCHRONOUS RECTIFICATI
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫(kù)存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
ST(意法半導(dǎo)體) |
23+ |
SO8 |
6000 |
誠(chéng)信服務(wù)，絕對(duì)原裝原盤 |
詢價(jià) | ||
ST/意法半導(dǎo)體 |
23+ |
SOT-23-6 |
12700 |
買原裝認(rèn)準(zhǔn)中賽美 |
詢價(jià) | ||
ST/意法半導(dǎo)體 |
21+ |
SOT-23-6 |
63880 |
本公司只售原裝 支持實(shí)單 |
詢價(jià) | ||
ST/意法半導(dǎo)體 |
23+ |
SOT-23-6 |
12820 |
正規(guī)渠道,只有原裝! |
詢價(jià) | ||
STM |
22+ |
NA |
3000 |
原裝正品支持實(shí)單 |
詢價(jià) | ||
STMicroelectronics |
23+/24+ |
SOT-23-6 |
8600 |
只供原裝進(jìn)口公司現(xiàn)貨+可訂貨 |
詢價(jià) | ||
ST/意法半導(dǎo)體 |
21+ |
SOT-23-6 |
8860 |
原裝現(xiàn)貨,實(shí)單價(jià)優(yōu) |
詢價(jià) | ||
ST/意法半導(dǎo)體 |
2023+ |
SOT-23-6 |
6000 |
原裝正品現(xiàn)貨、支持第三方檢驗(yàn)、終端BOM表可配單提供 |
詢價(jià) | ||
ST/意法半導(dǎo)體 |
21+ |
SOT-23-6 |
8860 |
只做原裝,質(zhì)量保證 |
詢價(jià) | ||
ST/意法半導(dǎo)體 |
2023 |
SOT-23-6 |
7000 |
公司原裝現(xiàn)貨/支持實(shí)單 |
詢價(jià) |
