HA16129AFPJ datasheet(6/26 Pages) ETC

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HA16129AFPJ

Pin Function

Function

No.

Symbol

Function

WDT.

P-RUN

Watchdog timer pulse input. The auto-reset function is controlled by the

duty cycle or frequency of this input pulse signal.

The resistor connected to this pin determines the current that flows in the

Cf pin capacitor. Use the resistor value from 100 k

Ω to 500 kΩ

The current determined by the Rf pin charges the Cf capacitor and the

potential on this pin determines the watchdog timer frequency band.

RH, tRL, tOFF

The resistor connected to this pin determines the current that flows in the

R pin capacitor. Use the resistor value from 100 kΩ to 500 k Ω

The current determined by the R

R pin charges the capacitor CR and the

potential on this pin controls the

RES function (toff, t

RH, and tRL).

The resistor R

T, which determines only the time tON for the RES function is

connected to this pin. This resistor determines the current that charges the

capacitor C

R for the time t ON . Use the resistor value from 100 kΩ to 500 k Ω

tr, t

RES

The current determined by the Rf pin charges the capacitor C

RES, and the

RES delay times (Tr and T

RES) are determined by the potential of this

capacitor.

—

GND

Ground

Vout

Voadj

Insert the resistor Roadj if fine adjustment of the regulator output voltage

Vout is required. Leave this pin open if Vout does not need to be changed.

Output

OUTE

Output for the OUTE function

Power

supply

Power supply

Short

detection

Connect the overcurrent detection resistor between the CS pin and the V

pin. If this function is not used, short this pin to V

CC. Also, connect this pin

to the emitter of the external transistor.

Vout

CONT

Connect this pin to the base of the external transistor.

OUT

Provides the regulator output voltage and the IC internal power supply.

Connect this pin to the collector of the external transistor.

NMI

NMIsns

This pin senses the

NMI detection voltage. If V

CC is to be detected,

connect this pin to the V

CC pin (however, note that an external resistor is

required), and if Vout is to be detected, connect this pin to the V

OUT pin.

NMIadj

Insert a resistor if fine adjustment of the

NMI detection voltage is required.

Leave this pin open if fine adjustment is not required.

Output

NMI

NMI output

Output

RES

RES output

STBY

STBYadj

Insert a resistor if fine adjustment of the

STBY detection voltage is

required. Leave this pin open if fine adjustment is not required.

Output

STBY

STBY output

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