参数资料
型号: MCP120T-485I/SN
厂商: Microchip Technology
文件页数: 1/16页
文件大小: 0K
描述: IC SUPRVSR 4.85V OPN DRAIN 8SOIC
标准包装: 3,300
类型: 简单复位/加电复位
监视电压数目: 1
输出: 开路漏极或开路集电极
复位: 低有效
复位超时: 最小为 150 ms
电压 - 阀值: 4.725V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOICN
包装: 带卷 (TR)

MCP120/130
Microcontroller Supervisory Circuit with Open Drain Output
FEATURES
PACKAGES
V DD
RST
V SS
? Holds microcontroller in reset until supply voltage
reaches stable operating level
? Resets microcontroller during power loss
? Precision monitoring of 3V, 3.3V and 5V systems
? 7 voltage trip points available
? Active low RESET pin
? Open drain output
? Internal pull-up resistor (5 k ? ) for MCP130
? Holds RESET for 350 ms (typical)
? RESET to V CC = 1.0V
? Accuracy of ±125 mV for 5V systems and ±75 mV
for 3V systems over temperature
? 45 μ A typical operating current
? Temperature range:
- Industrial (I): -40 ° C to +85 ° C
DESCRIPTION
The Microchip Technology Inc. MCP120/130 is a volt-
age supervisory device designed to keep a microcon-
troller in reset until the system voltage has reached the
proper level and stabilized. It also operates as protec-
tion from brown-out conditions when the supply voltage
drops below a safe operating level. Both devices are
TO-92 with
‘D’ Bondout
RST V SS
V DD
MCP120
MCP130
TO-92 with
‘G’ Bondout
V DD
V SS
MCP120
SOT-23-3
TO-92 WITH
‘F’ BONDOUT
V SS
RST
MCP130
TO-92 with
‘H’ Bondout
V DD
RST
MCP120
MCP130
150mil SOIC
available with a choice of seven different trip voltages
and both have open drain outputs. The MCP130 has an
internal 5 k ? pullup resistor. Both devices have active
low RESET pins. The MCP120/130 will assert the
RST
V DD
V SS
RST
V DD
NC
V SS
1
2
3
4
8
7
6
5
NC
NC
NC
NC
RESET signal whenever the voltage on the V DD pin is
below the trip-point voltage.
MCP120
MCP130
BLOCK DIAGRAM
V DD
MCP120
MCP130
Comparator
+
-
Delay
Circuit
Output
Driver
5k ? internal
pull-up on
MCP130
only
RESET
Bandgap
Reference
? 2001 Microchip Technology Inc.
DS11184D-page 1
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