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参数资料
| 型号： | DS1818-5/T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/5页 |
| 文件大小： | 0K |
| 描述： | IC ECONRST 3.3V W/PB 5% TO92-3 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,000 |
| 系列： | EconoReset |
| 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 100 ms |
| 电压 - 阀值： | 3.06V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-226-3、TO-92-3（TO-226AA）成形引线 |
| 供应商设备封装： | TO-92-3 |
| 包装： | 带卷 (TR) |
DS1818
3.3V EconoReset with Pushbutton
www.maxim-ic.com
3
1 2 3
FEATURES
§ Automatically restarts a microprocessor after
power failure
§ Monitors pushbutton for external override
§ Maintains reset for 150 ms after V CC returns
to an in-tolerance condition
§ Reduces need for discrete components
§ Precision temperature-compensated voltage
reference and voltage sensor
§ Accurate 5%, 10% or 20% power monitoring
§ Low-cost TO-92 or space saving surface
mount SOT-23 packages available
§ Efficient open-drain output with internal
5.5 k W pull-up resistor
§ Operating temperature -40 ° C to +85 ° C
PIN ASSIGNMENT
DALLAS
DS1818
Econo
Reset
1 2
TOP VIEW
SOT-23 PACKAGE
See Mech.
Drawings Section
On Website
1 2 3
BOTTOM VIEW
TO-92 PACKAGE
See Mech.
Drawings Section
On Website
PIN DESCRIPTION
TO-92
1
2
3
RST
V CC
GND
Active Low Reset Output
Power Supply
Ground
SOT-23
1
2
3
RST
V CC
GND
Active Low Reset Output
Power Supply
Ground
DESCRIPTION
The DS1818 EconoReset uses a precision temperature-compensated reference and comparator circuit to
monitor the status of the power supply (V CC ). When an out-of-tolerance condition is detected, an internal
power-fail signal is generated which forces reset to the active state. When V CC returns to an in-tolerance
condition, the reset signal is kept in the active state for approximately 150 ms to allow the power supply
and processor to stabilize.
The DS1818 also monitors a pushbutton on the reset output. If the reset line is pulled low, a reset is
generated upon release and the DS1818 output will be held in reset output low for typically 150 ms.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1818A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Logic IC |
| DS1818B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Logic IC |
| DS1818C | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Logic IC |
| DS1818D | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Logic IC |
| DS1818R10 | 制造商:DALLAS 功能描述:* |
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