HA16103PJ HITACHI, HA16103PJ Datasheet

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HA16103PJ

Manufacturer Part Number
HA16103PJ
Description
Watch dog timer
Manufacturer
HITACHI
Datasheet

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HA16103PJ
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HA16103PJ
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20 000
Description
The HA16103FPJ/FPK monolithic voltage control is designed for microcomputer systems. In addition to
voltage regulator, it includes watch dog timer function, power on reset function, and output voltage monitor
function.
It is suitable for battery use microcomputer systems.
Functions
Features
Ordering Information
Type No.
HA16103FPJ
HA16103FPK
5 V regulated power supply
Power on reset pulse generator
Watch dog timer
Low voltage inhibit protection
Wide operational supply voltage range (V
Various control signals are generated when microcomputer system runaway occurs. (NMI signal and
STBY signal are generated by detecting voltage level, and RES signal is generated by monitoring the
time after NMI signal is detected)
Regulated voltage, NMI detecting voltage, STBY detecting voltage are adjustable.
At low voltage and re-start, the delay time of RES signal is adjustable
Watchdog timer filtering uses the minimum clock input pulse width and maximum cycle detection
method
HA16103 FPJ/FPK
Watchdog Timer
CC
= 6 to 40 V)
Package
FP-20DA
FP-20DA

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HA16103PJ Summary of contents

Page 1

HA16103 FPJ/FPK Description The HA16103FPJ/FPK monolithic voltage control is designed for microcomputer systems. In addition to voltage regulator, it includes watch dog timer function, power on reset function, and output voltage monitor function suitable for battery use microcomputer ...

Page 2

HA16103 FPJ/FPK Pin Arrangement P-RUN GND Oadj V OUT (Top ...

Page 3

Pin Functions No. Pin Name Description pin 2 P-RUN P-RUN signal input pin for watchdog timer 3 Rf Connect resistor Rf. Frequency bandwidth of the filter circuit depends Connect resistor Cf. Frequency bandwidth ...

Page 4

HA16103 FPJ/FPK Block Diagram 5. oadj 8 Error 2 k amplifier Starter circuit Reference voltage generator 2 P-RUN Band-pass filter circuit CONT OUT Comparator for STBY Delay ...

Page 5

Functional Description Stabilized Power Supply Function The stabilized power supply includes the following features: Wide range of operating input voltage from provide stabilized voltages Availability of any output current, by simply replacing the external ...

Page 6

HA16103 FPJ/FPK Power-On Reset Function The system contains the power-on reset function required when a microcomputer is turned on. The reset period may be set with external components R the reset period (ton) and figure 3 shows the characteristic of ...

Page 7

Watchdog Timer Function The system contains a bandpass filter for pulse width detection, which outputs a reset pulse when input pulses are not at the preselected frequency (at either a higher or lower frequency). The RC characteristic of the bandpass ...

Page 8

HA16103 FPJ/FPK Low Voltage Monitoring Function The system contains a circuit to send a control signal to the microcomputer when the output voltage drops. The circuit includes the following features. Two-point monitoring of output voltage (V Availability of fine adjustment ...

Page 9

Absolute Maximum Ratings (Ta = 25°C) Item V supply voltage CC Control pin voltage Control pin current V pin voltage OUT Power dissipation Operating ambient temperature range Storage temperature range Notes: 1. Value under ...

Page 10

HA16103 FPJ/FPK Electrical Characteristics (Ta = 25°C, V HA16103FPJ/FPK Item Supply current Regulator Output voltage Line regulation Load regulation Ripple rejection Output voltage Temperature coefficient Clock input “L”-input voltage “H”-input voltage “L”-input current “H”-input current ...

Page 11

Electrical Characteristics (T Item NMI output NMI pin “L”-level voltage NMI pin “H”-level voltage NMI function start V voltage OUT STBY STBY pin output “L”-level voltage STBY pin “H”-level voltage STBY function start V voltage OUT RES output RES pin ...

Page 12

HA16103 FPJ/FPK Electrical Characteristics (T (cont) HA16103FPK Item Supply current Regulator Output voltage Line regulation Load regulation Clock input “L”-input voltage “H”-input voltage “L”-input current “H”-input current NMI output NMI pin “L”-level voltage NMI pin “H”-level voltage STBY STBY pin ...

Page 13

Test Circuit S 1 1000 p V BATT Sample Connection Circuit Sample Connection Circuit between HA16103 and H8/532 S 1 IGN, BATT 1000 p (1) 2SB857D ...

Page 14

HA16103 FPJ/FPK Sample Connection Circuit between HA16103 and H8/532 (2) S1 IGN 1000 p V BATT CLK 1000 Voadj CC OUT CONT VNMIadj NMI STBY HA16103 RES ...

Page 15

... Separate the IC’s ground line from highcurrent ground lines. Increase the capacitance (Co) used to smooth the V SW1 V IGN Wiring impedance Wiring impedance C C output. OUT Wiring impedance SW2 HA16103PJ/FPJ Wiring impedance Figure 6 Typical Circuit Vout Vout V Vcont Vcont CC CC RES RES GND ...

Page 16

HA16103 FPJ/FPK Low-voltage inhibit section 1000 p Permissible P-RUN Pulse Duty Cycle vs. P-RUN Pulse Frequency 500 200 100 ...

Page 17

Low-voltage inhibit section Low-Voltage Reset Pulse Recovery Delay vs 1000 p 2000 p C Power-on and auto-reset section ...

Page 18

HA16103 FPJ/FPK Power-on and auto-reset section 700 m 600 m 500 m 400 m 300 m 200 m 100 m Vref section 5.30 5.20 5.10 5.00 4.90 4.80 4. Clock-Off Time vs. Resistance ...

Page 19

Power-on and auto-reset section Reset High Time vs. Resistance R 280 260 240 typ OUT 220 m 200 m 180 0.22 ...

Page 20

... HA16103 FPJ/FPK Package Dimensions 13 Max 20 1 0.80 Max 1.27 *0.42 0.08 0.06 0.40 *Dimension including the plating thickness Base material dimension 20 12 0.15 0. 0.20 7.80 – 0.30 1.15 0 – 8 0.70 0.20 Hitachi Code FP-20DA JEDEC — EIAJ Conforms Mass (reference value) 0.31 g Unit: mm ...

Page 21

... Cautions 1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent, copyright, trademark, or other intellectual property rights for information contained in this document. Hitachi bears no responsibility for problems that may arise with third party’s rights, including intellectual property rights, in connection with use of the information contained in this document ...

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