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S-1002

VOLTAGE DETECTOR

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S-1002 Series

www.sii-ic.com © Seiko Instruments Inc., 2014

VOLTAGE DETECTOR WITH SENSE PIN
Rev.1.1_00

The S-1002 Series is a high-accuracy voltage detector developed using CMOS technology. The detection voltage is fixed internally with an accuracy of ±1.0% (−VDET(S) ≥ 2.2 V). It operates with current consumption of 500 nA typ. Apart from the power supply pin, the detection voltage input pin (SENSE pin) is also prepared, so the output is stable even if the SENSE pin falls to 0 V. Two output forms Nch open-drain output and CMOS output are available.

 Features

• Detection voltage:

1.0 V to 5.0 V (0.1 V step)

• Detection voltage accuracy:

±1.0% (2.2 V ≤ −VDET(S) ≤ 5.0 V)

±22 mV (1.0 V ≤ −VDET(S) < 2.2 V)

• Current consumption:

500 nA typ.

• Operation voltage range:

0.95 V to 10.0 V

• Hysteresis width:

5% ± 2%

• Output form:

Nch open-drain output (Active "L")

CMOS output (Active "L")

• Operation temperature range: Ta = −40°C to +85°C

• Lead-free (Sn 100%), halogen-free

 Applications
• Power supply monitor for microcomputer and reset for CPU • Constant voltage power supply monitor for TV, Blu-ray recorder and home appliance • Power supply monitor for portable devices such as notebook PC, digital still camera and mobile phone

 Packages
• SOT-23-5 • SC-82AB

Seiko Instruments Inc.

1

VOLTAGE DETECTOR WITH SENSE PIN S-1002 Series
 Block Diagrams
1. S-1002 Series NA / NB type (Nch open-drain output)
SENSE

VDD

+ *1 *1 −
VREF

OUT
*1

Rev.1.1_00

Function

Status

Output logic Active "L"

VSS

*1. Parasitic diode

Figure 1

2. S-1002 Series CA / CB type (CMOS output)

SENSE

VDD

+ *1 *1 −
VREF

Function

Status

Output logic Active "L"

*1
OUT
*1

VSS *1. Parasitic diode

Figure 2

2 Seiko Instruments Inc.

Rev.1.1_00

VOLTAGE DETECTOR WITH SENSE PIN S-1002 Series

 Product Name Structure
Users can select the output form, detection voltage value, and package type for the S-1002 Series. Refer to "1. Product name" regarding the contents of product name, "2. Function list of product types" regarding the product types, "3. Packages" regarding the package drawings and "4. Product name list" regarding details of product name.
1. Product name
S-1002 x x xx I - xxxx U

Environmental code U: Lead-free (Sn 100%), halogen-free
Package abbreviation and IC packing specifications*1 M5T1: SOT-23-5, Tape N4T1: SC-82AB, Tape
Operation temperature I: Ta = −40°C to +85°C
Detection voltage 


























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