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SGM809-RXN3 参数 Datasheet PDF下载

SGM809-RXN3图片预览
型号: SGM809-RXN3
PDF下载: 下载PDF文件 查看货源
内容描述: 微处理器监控电路的3引脚SOT23封装 [Microprocessor Supervisory Circuit in 3-Pin SOT23]
分类和应用: 微处理器监控
文件页数/大小: 9 页 / 504 K
品牌: SGMICRO [ Shengbang Microelectronics Co, Ltd ]
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SGM803
SGM809
SGM810
GENERAL DESCRIPTION
The SGM803/SGM809/SGM810 supervisory circuits
monitor the power supply voltage in microprocessor and
digital systems. They provide a reset output during
power-up, power-down and brownout conditions. On
power-up, an internal timer holds reset asserted for 240 ms.
This holds the microprocessor in a reset state until
conditions have stabilized. The
RESET
output remains
operational with V
CC
as low as 1 V. The SGM803/SGM809
provides an active low reset signal (
RESET
) while the
SGM810 provides an active high signal (RESET) output.
The SGM809/SGM810 have push-pull outputs, whereas the
SGM803 has an open-drain output, which requires an
external pull-up resistor.
Seven reset threshold voltage options are available suitable
for monitoring 2.5V, 3V, 3.3V, and 5V supply voltages.
The reset comparator features built-in glitch immunity,
making it immune to fast transients on V
CC
.
The low supply current of typically 17
µ
A makes the
SGM803/SGM809/SGM810 ideal for use in portable, battery
operated equipment. They are available in the 3-pin SOT23
package.
Microprocessor Supervisory
Circuit in 3-Pin SOT23
FEATURES
Precision Voltage Monitor: 2.5V,3 V, 3.3 V, 5 V
Options
Superior Upgrade for MAX803/MAX809/MAX810
and SGM803/SGM809/SGM810
Fully Specified over Temperature
Low Power Consumption (17μA Typ)
Reset Assertion Down to 1 V V
CC
160 ms Min Power-On Reset
Open-Drain
RESET
Output(SGM803)
Push-Pull
RESET
Output (SGM809)
Push-Pull RESET Output (SGM810)
Compact 3-Pin SOT23 Package
PIN CONFIGURATIONS(TOP VIEW)
APPLICATIONS
Microprocessor Systems
Controllers
Intelligent Instruments
Automotive Systems
Safety Systems
Portable Instruments
GND
1
SGM803
SGM809
SGM810
RESET/RESET
2
3
V
CC
SOT23-3
TYPICAL OPERATION CIRCUIT
RESET
V
CC
V
CC
R
PULL-UP
SGM803 only
1
SGM803/SGM809
RESET
MICROPROCESSOR
SYSTEM
RESET
SGM809-
ZXN3L
(only)
GND
2
3
V
CC
SOT23-3(L-Type)
GND
GND
Shengbang Microelectronics Co, Ltd
Tel: 86/451/84348461
www.sg-micro.com
REV. B