圣邦微电子

SGM809 Microprocessor Supervisory Circuit in 3-Pin SOT-23

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 240ms. This holds the microprocessor in a reset state until conditions have stabilized. The RESEToutput remains operational with VCC as low as 1V. The SGM803 and SGM809 provide 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.

Eight reset threshold voltage options are available, suitable for monitoring 1.8V, 2.5V, 3V, 3.3V and 5V supply voltages.

The reset comparator features built-in glitch immunity, making it immune to fast transients on VCC.

The low supply current of typically 13μA makes the SGM803/SGM809/SGM810 ideal for use in portable, battery operated equipment. All are specified over the extended -40℃ to +125℃ temperature range.



PIN CONFIGURATIONS


FEATURES

● Precision Voltage Monitor: 1.8V, 2.5V, 3V, 3.3V, 5V Options

● Superior Upgrade for MAX803/MAX809/MAX810 and ADM803/ADM809/ADM810

● Fully Specified over Temperature

● Low Power Consumption: 13μA (TYP)

● Reset Assertion Down to 1V VCC

● 150ms Power-On Reset (MIN)

Open-Drain RESETOutput (SGM803)

Push-Pull RESETOutput (SGM809)

Push-Pull RESET Output (SGM810)

● -40℃ to +125℃ Operating Temperature Range

● Small Packaging

SGM803 Available in SOT-23-3 and SOT-23

SGM809 Available in SOT-23-3 and SOT-23

SGM810 Available in SOT-23-3 and SOT-23


APPLICATIONS

Microprocessor Systems

Controllers

Intelligent Instruments

Automotive Systems

Safety Systems

Portable Instruments



ORDERING INFORMATION

Part Number Status Package Pins Pb-Free Temp Range
SGM809-LXN3/TR Production SOT-23-3 3 Y -40℃ to +125℃ Samples
SGM809-LXN3L/TR Production SOT-23 3 Y -40℃ to +125℃ Samples
SGM809-MXN3/TR Production SOT-23-3 3 Y -40℃ to +125℃ Samples
SGM809-MXN3L/TR Production SOT-23 3 Y -40℃ to +125℃ Samples
SGM809-JXN3/TR Production SOT-23-3 3 Y -40℃ to +125℃ Samples
SGM809-JXN3L/TR Production SOT-23 3 Y -40℃ to +125℃ Samples
SGM809-TXN3/TR Production SOT-23-3 3 Y -40℃ to +125℃ Samples
SGM809-TXN3L/TR Production SOT-23 3 Y -40℃ to +125℃ Samples
SGM809-SXN3/TR Production SOT-23-3 3 Y -40℃ to +125℃ Samples
SGM809-SXN3L/TR Production SOT-23 3 Y -40℃ to +125℃ Samples
SGM809-RXN3/TR Production SOT-23-3 3 Y -40℃ to +125℃ Samples
SGM809-RXN3L/TR Production SOT-23 3 Y -40℃ to +125℃ Samples
SGM809-ZXN3/TR Production SOT-23-3 3 Y -40℃ to +125℃ Samples
SGM809-ZXN3L/TR Production SOT-23 3 Y -40℃ to +125℃ Samples
SGM809-XXN3/TR Production SOT-23-3 3 Y -40℃ to +125℃ Samples
SGM809-XXN3L/TR Production SOT-23 3 Y -40℃ to +125℃ Samples

样片申请

X
0
0
© Copyright 2007-2018 圣邦微电子(北京)股份有限公司 版权所有 京 ICP 证08010133号