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参数资料
| 型号： | MIC2774N-26YM5 TR |
| 厂商： | Micrel Inc |
| 文件页数： | 2/8页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR DUAL LV SOT23-5 |
| 标准包装： | 3,000 |
| 类型： | 多压监控器 |
| 监视电压数目： | 2 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 2.67V，可调 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-23-5 |
| 包装： | 带卷 (TR) |
| 其它名称： | MIC2774N-26YM5TR MIC2774N-26YM5TR-ND |
MIC2774
Micrel
Standard Voltage Options*
Voltage
Code
46
44
31
29
28
26
25
23
22
17
Typical
Application (V DD )
5.0V ±5%
5.0V ±10%
3.3V ±5%
3.3V ±10%
3.0V ±5%
2.85V ±5%
2.70V ±5%
2.5V ±5%
2.4V ±5%
1.8V ±5%
Nominal Threshold
Voltage (V TH )
4.68
4.43
3.09
2.93
2.81
2.67
2.53
2.34
2.25
1.69
*There are ten standard versions available with an order increment of 3000 pieces. Samples of standard versions are
normally available from stock. Contact factory for information on non-standard versions. Available in tape-and-reel only.
Pin Con? guration
/MR GND RST
3 2 1
/MR GND /RST
4
5
3
2
1
IN
VDD
4
IN
5
VDD
Pin Description
SOT-23-5 (M5)
“H” Version
SOT-23-5 (M5)
“L” and “N” Version
Pin Number
MIC2774H
Pin Number
MIC2774L
MIC2774N
Pin Name
Pin Function
1
1
RST
/RST
Digital (Output): Asserted high whenever V IN or V DD falls below the threshold
voltage. It will remain asserted for no less than 140ms after V IN and V DD
return above the threshold limits.
Digital (Output): Asserted low whenever V IN or V DD falls below the threshold
voltage. It will remain asserted for no less than 140ms after V IN and V DD
return above the threshold limits. (open-drain for “N” version)
2
3
4
5
M9999-102605
2
3
4
5
GND
/MR
IN
VDD
Ground
Digital (Input): Driving this pin low initiates immediate and unconditional re-
set. Assuming V IN and V DD are above the thresholds when /MR is released
(returns high), the reset output will be de-asserted no less than 140ms later.
/MR may be driven by a logic signal or a mechanical switch. /MR has an
internal pull-up to V DD and may be left open if unused.
Analog (Input): The voltage on this pin is compared to the internal 300mV
reference. An under-voltage condition will trigger a reset sequence.
Analog (Input): Power supply input for internal circuitry and input to the ? xed
voltage monitor. The voltage on this pin is compared against the internal
reference. An undervoltage condition will trigger a reset sequence.
2
October 2005
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