LA5693D Ver la hoja de datos (PDF) - SANYO -> Panasonic

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LA5693D

Monolithic Linear IC with Watchdog Timer Voltage Regulator Driver

SANYO -> Panasonic 

LA5693D, LA5693MD

Note on application

1. For stable operation, place Cin, CO, and TR1 as near to the IC as possible.

2. When used in 0°C or below it, a capacitor of which impedance at high-frequency operation is low and has a good

temperature characteristic (such as SANYO OS-CON capacitor or others) should be used to prevent oscillation.

3. Set VS to the output voltage level where the circuit will be reset using external resistors R1 and R2. VS should be set

to 4V or greater due to internal circuit operation.

4. CCK must be inserted to cut the high range element of clock noise to prevent it from becoming a reset output noise.

5. For Ct, a capacitor which less varies the capacitance according to the temperature should be used.

Timing Chart

Application of power

VCC

0

5V

VS

VO 0

4V

2V

Ct 0

RES(1) 0

Vhys

Instantaneous drop

RES(2) 0

0

CK

Digital output at I/O

port of microcomputer

td

tCKW

tWD

tWR

td

Microcomputer

operation start

CPU

abnormality

Note : Edge-triggered at the point indicated by the arrow of CK signal.

No.A2085-5/7

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