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參數(shù)資料
| 型號(hào)： | MAX4773EUK-T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類(lèi)： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
| 封裝： | MO-178AB, SOT23-6 |
| 文件頁(yè)數(shù)： | 16/16頁(yè) |
| 文件大?。?/td> | 427K |
| 代理商： | MAX4773EUK-T |
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MAX4772/MAX4773
200mA/500mA Selectable
Current-Limit Switches
_______________________________________________________________________________________
9
reduce the voltage drop at the input and are recom-
mended for lower voltage applications.
Output Capacitance
Connect a 0.1F capacitor from OUT to GND. This
capacitor helps prevent inductive parasitics from
pulling OUT negative during turn-off, thus preventing
the MAX4772/MAX4773 from tripping erroneously. If the
load capacitance is too large, then current may not
have enough time to charge the capacitance and the
device assumes that there is a faulty load condition.
The maximum capacitive load value that can be driven
from OUT is obtained by the following formula:
Layout and Thermal Dissipation
To optimize the switch response time to output short-
circuit conditions, it is very important to keep all traces
as short as possible to reduce the effect of undesirable
parasitic inductance. Place input and output capacitors
as close as possible to the device (no more than 5mm).
IN and OUT pins must be connected with short traces
to the power bus.
During normal operation, the power dissipation is small
and the package temperature change is minimal. If the
output is continuously shorted to ground at the maxi-
mum supply voltage, the operation of the switches with
the autoretry option does not cause problems because
the total power dissipated during the short is scaled by
the duty cycle:
where VIN = 4.5V, IOUT = 750mA, tBLANK = 14ms, and
tRETRY = 210ms.
Attention must be given to the MAX4772 where the
latch-off condition must be manually reset by toggling
ON from high to low. If the latch-off time duration is not
sufficiently high, it is possible for the device to reach
the thermal-shutdown threshold and never be able to
turn the device on until it cools down.
Chip Information
TRANSISTOR COUNT: 2539
PROCESS: BiCMOS
P
VI
t
tt
mW
MAX
IN MAX
OUT MAX
BLANK
RETRY
BLANK
=
××
+
=
__
211
C
It
V
MAX
FWD MIN
BLANK MIN
IN
<
×
__
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4773EUT | 制造商:Maxim Integrated Products 功能描述:- Cut Tape Product |
| MAX4773EUT+ | 制造商:Maxim Integrated Products 功能描述:CURRENT LIMIT SW 1-IN 1-OUT 2V TO 4.5V 0.8A 6PIN SOT-23 - Cut Tape Product |
| MAX4773EUT+T | 功能描述:電源開(kāi)關(guān) IC - 配電 200mA/500mA Select Current-Limit Switch RoHS:否 制造商:Exar 輸出端數(shù)量:1 開(kāi)啟電阻（最大值）:85 mOhms 開(kāi)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 |
| MAX4773EUT-T | 功能描述:電源開(kāi)關(guān) IC - 配電 RoHS:否 制造商:Exar 輸出端數(shù)量:1 開(kāi)啟電阻（最大值）:85 mOhms 開(kāi)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 |
| MAX477EPA | 功能描述:運(yùn)算放大器 - 運(yùn)放 RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
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