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參數(shù)資料
| 型號(hào)： | STMPS2262MTR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4 I/O, PIA-GENERAL PURPOSE, PDSO8 |
| 封裝： | SOP-8 |
| 文件頁(yè)數(shù)： | 16/18頁(yè) |
| 文件大?。?/td> | 344K |
| 代理商： | STMPS2262MTR |
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STMPS2242, STMPS2252, STMPS2262, STMPS2272
Functional description
7/18
3
Functional description
3.1
Fault blanking
The STMPS devices feature a 10 ms fault blanking. Fault blanking allows current-limit faults,
including momentary short-circuit faults that occur when hot-swapping a capacitive load,
and also ensures that no fault is issued during power-up. When a load transient causes the
device to enter current limit, an internal counter starts. If the load fault persists beyond the
10 ms fault-blanking timeout, the FAULT output asserts “l(fā)ow”. Load-transient faults less than
10 ms (typ.) do not cause a FAULT output assertion. Only current-limit faults are blanked.
Die over-temperature faults and input voltage drops below the UVLO threshold cause an
immediate fault output.
3.2
Overcurrent/over-temperature protection
In overcurrent or short-circuit condition, the switch limits the current at 500 mA for
STMPS2242/STMPS2252 and 1000 mA for STMPS2262/STMPS2272. If temperature of
die goes above limit value, the switch turns OFF.
3.3
Reversed current blocking
When the switch is OFF, or when the STMPS device is un-powered (VCC=0 V), the switch
behaves as an Hi-Z at the output pin, ensuring that no reverse current will flow into the
device when Vi<Vo.
Note:
In the case where the switch is ON, and a voltage higher than Vi is applied to the OUT pin, a
reverse current will occur.
3.4
UVLO
When input voltage drops below critical value, the power switch turns OFF to prevent
improper operation due to low voltage.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| STMPS2262TTR | 功能描述:開關(guān) IC - 各種 Enhanced Dual CHNL Power Switch RoHS:否 制造商:Fairchild Semiconductor 開啟電阻（最大值）: 電源電壓-最大:4.4 V 電源電壓-最小:2.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WLCSP-9 封裝:Reel |
| STMPS2272 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Enhanced Power Switch |
| STMPS2272MTR | 功能描述:電源開關(guān) IC - 配電 Enhanced dual ch Power Switches RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| STMPS2272TTR | 功能描述:電源開關(guān) IC - 配電 Enhanced dual ch Power Switches RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| STM-R-EN-3 | 功能描述:步進(jìn)電機(jī) RoHS:否 制造商:Applied Motion 連接:Series 框架大小 (NEMA):23 步距角:1.8 deg 管腳或?qū)Ь€計(jì)數(shù):8 電壓額定值:3.3 V 電流額定值:2.12 A 最小保持力矩:177 oz-in 轉(zhuǎn)子慣性:1.64 oz-in-sq 尺寸:54.1 mm x 56.4 mm x 56.4 mm |
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