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參數(shù)資料
| 型號： | MAX4798EUK+TG05 |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 8/9頁 |
| 文件大小： | 0K |
| 描述： | IC SWITCH 1X1 SOT23-5 |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 功能： | 開關(guān) |
| 電路： | 1 x 1:1 |
| 導通狀態(tài)電阻： | 360 毫歐 |
| 電壓電源： | 單電源 |
| 電壓 - 電源，單路/雙路(±)： | 2 V ~ 4.5 V |
| 電流 - 電源： | 80µA |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | SC-74A，SOT-753 |
| 供應商設(shè)備封裝： | SOT-23-5 |
| 包裝： | 帶卷 (TR) |
MAX4795–MAX4798
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 MAX4795–MAX4798 from tripping erroneously. If
the load capacitance is too large, then current may not
have enough time to charge the capacitor 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 MAX4795 and MAX4797
where the latchoff condition must be manually reset by
toggling ON from high to low. If the latchoff time dura-
tion 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.
P
VI
t
tt
mW
MAX
IN MAX
OUT MAX
BLANK
RETRY
BLANK
=
××
+
=
__
211
C
It
V
MAX
FWD MIN
BLANK MIN
IN
<
×
__
450mA/500mA Current-Limit Switches
8
_______________________________________________________________________________________
Selector Guide
PART
CURRENT LIMIT
(mA)
AUTORETRY
MAX4795EUK-T
450
No
MAX4795ETT
450
No
MAX4796EUK-T
450
Yes
MAX4796ETT
450
Yes
MAX4797EUK-T
500
No
MAX4797ETT
500
No
MAX4798EUK-T
500
Yes
MAX4798ETT
500
Yes
Chip Information
TRANSISTOR COUNT: 2539
PROCESS: BiCMOS
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| MAX479CPD+ | 功能描述:運算放大器 - 運放 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 |
| MAX479CSD | 功能描述:運算放大器 - 運放 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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