Rainbow-electronics BD4719G Manual de usuario descargar pdf (Pagina 4)

Setting of the RESET signal delay time

Delay time can be set by capacitor CL and resistance RL connected to the output pin as shown below.

CL is charged by RL when Vcc is rising. The delay time caused by charging is determined by the

time constant of CL, RL and the threshold voltage of RESET pin. RESET IC discharges CL forcedly

when Vcc is falling. The delay time of RESET signal is determined by adding the delay time of single

RESET IC to each time.

GND

Vcc

Vout

RESET

BD47XXG

CPU

Micro-controller

VCC

RESET

(=VOUT)

VOH

TPLH

VOL

VS+∆VS

TPHL

Marking Voltage

Part No. Part No. Part No.

Marking

Voltage

BD4719BA

1.9V

2.0V

2.1V

2.2V

2.3V

2.4V

2.5V

2.6V

2.7V

2.8V

2.9V

3.0V

3.1V

3.2V

3.3V

3.4V

3.5V

3.6V

3.7V

3.8V

3.9V

4.0V

4.1V

4.2V

4.3V

4.4V

4.5V

4.6V

BD4729

BD4720

BD4721

BD4722

BD4723

BD4724

BD4725

BD4726

BD4727

BD4728

BD4730

BD4731

BD4732

BD4733

BD4734

BD4735

BD4736

BD4737

BD4738

BD4739

BD4740

BD4741

BD4742

BD4743

BD4744

BD4745

BD4746

Part number and Marking of samples

(

)

(

)

(

)

(

)

(

)

Marking

Lot.No

1 2 3 4 5

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Rainbow-electronics BD4719G Manual de usuario Pagina 4

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