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参数资料
| 型号： | MAX4797ETT+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/9页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH 1X1 6TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 功能： | 开关 |
| 电路： | 1 x 1:1 |
| 导通状态电阻： | 360 毫欧 |
| 电流 - 电源： | 125µA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-WDFN 裸露焊盘 |
| 供应商设备封装： | 6-TDFN 裸露焊盘（3x3） |
| 包装： | 带卷 (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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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4797EUK | 制造商:Maxim Integrated Products 功能描述:- Cut Tape Product |
| MAX4797EUK-T | 功能描述:电源开关 IC - 配电 RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5 |
| MAX4798ETT+T | 功能描述:电源开关 IC - 配电 450mA/500mA Current Limit Switch RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5 |
| MAX4798ETT-T | 功能描述:电源开关 IC - 配电 RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5 |
| MAX4798EUK | 制造商:Maxim Integrated Products 功能描述:- Cut Tape Product |
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