AN6783 Просмотр технического описания (PDF) - Panasonic Corporation

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AN6783

IC for long interval timer

Panasonic Corporation 

ICs for Timer

AN6783S

s Application Circuit Example

The AN6783S can be used as an integrator-type timer and as a long time timer using a stop pin. It is also usable

as a ultra low frequency oscillator.

1. Ultra low frequency oscillation circuit

RL

Ct

F/F

To

15

Each

block

Voltage

stabilizer

F/F

2

Input

circuit

F/F

1

OSC

Input

circuit

• Oscillation period

t0(S) ≈ 0.947Rt (Ω) · Ct (F)

• Output period

t2(S) ≈ t0 × 32768

≈ 31.03Rt (kΩ) · Ct (µF)

VCC

1 µF to 10 µF Rt

VCR

Monitor

Out

t0

t1 t1 = 2t0

t2

( ) t2 = 215 × t0

= 32768t0

7

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