参数资料
型号: DS1836DS-20+T&R
厂商: Maxim Integrated Products
文件页数: 1/9页
文件大小: 0K
描述: IC MICROMAN 3.3V HI ACT 20%8SOIC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
系列: MicroManager
类型: 备用电池电路
监视电压数目: 1
输出: 推挽式,图腾柱
复位: 高有效
复位超时: 最小为 200 ms
电压 - 阀值: 2.72V
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-SOIC
包装: 带卷 (TR)
DS1836/A/B/C/D
3.3V/5V MicroManager
www.maxim-ic.com
FEATURES
PIN ASSIGNMENT
5V or 3.3V power-on reset
True 3V operation power switch
Switches to battery at 3.8V (2.6V for 3.3V
versions)
V CC
V BAT
NC
1
2
3
8
7
6
RST(*RST)
NMI
IN
Excellent for systems designed to operate
with dual power supplies
Asserts resets during power transients
V OUT
4 5
8-Pin DIP (300mil)
GND
Maintains reset for 350ms after V CC returns to
an in-tolerance condition
Reduces need for discrete components
Precision temperature-compensated voltage
reference and voltage sensor
V CC
V BAT
NC
V OUT
1
2
3
4
8
7
6
5
RST(*RST)
NMI
IN
GND
8-pin DIP or space saving 8-pin SO surface
mount available
CMOS reset output for low current operation
Operating temperature of -40 ° C to +85 ° C
Perfect for PIC microprocessor applications
8-Pin SO (150mil)
DS1836A/C (*DS1836B/D)
PIN DESCRIPTION
V CC - Power Supply Input
V BAT
NC
V OUT
GND
IN
NMI
- Battery Supply Input
- No Connect
- Power Supply Output
- Ground
- Sense Input
- Non-maskable Interrupt
RST
(*RST)
- Reset Output
DESCRIPTION
The DS1836 MicroManager performs three vital system functions. First, a precision temperature-
compensated reference and comparator circuit monitor the status of the voltage on V CC and when an out-
of-tolerance condition is detected, an internal power-fail signal is generated that forces the reset active. If
V CC continues to degrade, it switches to the battery supply when V CC drops below 3.8V (2.6V for 3.3V
versions). When V CC exceeds 3.9V (2.8V for 3.3V versions); V OUT will again be supplied from V CC .
Reset will remain active for 350 ms after V CC returns to an in-tolerance condition.
Lastly, the DS1836 supports a sense input that sends a non-maskable interrupt whenever the sense input
drops below 1.25V.
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