NJM2102D Ver la hoja de datos (PDF) - Japan Radio Corporation

Número de pieza

componentes Descripción

Fabricante

NJM2102D

SYSTEM RESET IC

Japan Radio Corporation  

■ APPLICATION CIRCUIT

1. 5V Supply Voltage Supervisory and Watch-dog timer

NJM2102

● Voltage Supply is detected through VS. Detected Voltage is VSH, VSL.

● If minimum input pulse width TPI needs extend, add external capacitor C between VS terminal and GND.

(Please refer to TYPICAL CHARACTERISTICS : Minimum Input Pulse Width vs C)

2. 5V Supply Voltage Supervisiory (Externally fine tunning type)

● VS detecting Voltage can be externally adjusted.

● Detecting Voltage can be decided by divider resistor of IC inside.

Detecting Voltage can be set by external R1, R2.

The external resistor R1, R2 are required to be set in value less than 1 / 10 in comparing to divideing

resistor of IC inside. Please refere to following Table.

R1(kΩ)

R2(kΩ)

Detecting Voltage : VSL(V) Detecting Voltage : VSH(V)

10

3.9

4.34

4.44

9.1

3.9

4.08

4.18

Ver.2013-03-06

-9-

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