SANYO LA5692M, LA5692D, LA5692S Datasheet

LA5692D, 5692S, 5692M

Ordering number : EN2770B

Voltage Regulator Driver

with Watchdog Timer

Monolithic Linear IC

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN

D0597HA (KT)/8099YT/8037TA, TS No.2770-1/6

Overview

The LA5692 is a single-chip voltage regulator for
microcomputer system monitor use that performs the
functions of 5V output voltage control, watchdog timer,
and voltage detector. Since the LA5692 can hold the reset
output, it is especially suited for use in peripheral control
and monitor output applications (example : valves used in
refrigeration equipment, hot water supply system).

Applications

• Microcomputer system for car equipment, refrigeration/
heating equipment, office automation equipment.

Functions

• Output voltage 5V control.

• Watchdog timer.

• Reset generation at power-ON mode.

• Reset hold output [RES (2)] (Cleared with CK reinput).

Features

• An external PNP transistor can be used to provide a low­saturation voltage regulator.

• CK input with edge detector.

• Variable detection voltage.

• The watchdog time can be made longer.

Package Dimensions

unit: mm

3001B-DIP8

[LA5692D]

SANYO : DIP8

1

4

8

5

3.0

3.2

0.25

7.62

6.4

3.9max

0.51min

9.4

0.89 2.54

1.4

0.5

unit: mm

3017B-SIP9

[LA5692S]

SANYO : SIP9

0.99

0.25

1.35

3.0

22.3

0.51min

5.7max

3.2

1.5

4.8

1.0

2.54

1.3

0.5

1

9

unit: mm

3032B-MFP8

[LA5692M]

SANYO : MFP8

1

8

4

5

0.645

1.270.35

5.1

0.15

1.8max

1.50.1

0.625

4.4

5.15

6.4

Specifications
Maximum Ratings

at Ta=25°C

Parameter Symbol Conditions Ratings Unit

Control pin voltage V

CONT

max 1s 60 V

Control pin voltage V

CONT

max 41 V

Control pin current I

CONT

max *VCC≥6V 11 mA

CK input voltage V

CK

max 25 V

Reset pin voltage V

RES(1)

max, 41 V

V

RES(2)

max

Allowable power dissipation Pd max LA5692D, 5692S 500 mW

LA5692M 370 mW
Operating temperature Topr –40 to +85 °C
Storage temperature Tstg –55 to +150 °C
* : A PNP transistor is connected to the LA5692D, 5692S externally to provide a low-saturation voltage regulator.

Therefore, I

CONT

≈100mA will flow, as starting current, in the VCCrange where the output cannot be regulated.

Operating Conditions at Ta=25°C

Parameter Symbol Conditions Ratings Unit

Control pin voltage V

CONT

6 to 40 V

Control pin current I

CONT

max 10 mA

Reset output current I

RES(1)

max, External R pull-up 8 mA

I

RES(2)

max

Reset detection voltage V

S

min 4 V

Operating Characteristics at Ta=25°C, V

CC

=14V, IO=50mA, unless otherwise specified.

Parameter Symbol Conditions

Ratings

min typ max

Unit

Output voltage V

O

4.8 5.0 5.2 V

Line regulation1 ∆V

OLN

1 9V≤VCC≤16V 2 10 mV

Line regulation2 ∆V

OLN

2 6V≤VCC≤40V 4 30 mV

Load regulation ∆V

OLD

1mA≤IO≤50mA 4 30 mV
Current dissipation I

CC

IO=0 4.4 6.5 mA
Output noise voltage V

NO

10Hz≤f≤100kHz, VCK=0 150 µV
Temperature coefficient ∆V

O

/∆Ta IO=5mA, –40°C≤Ta≤+85°C ±0.2 mV/°C
of output voltage
Reference voltage V

REF

1.13 1.18 1.23 V

‘H’-level CK input voltage V

IH

2 V

‘L’-level CK input voltage V

IL

0.8 V

‘H’-level CK input current I

IH

VCK=5V 0.3 0.7 mA

‘L’-level CK input current I

IL

VCK=0V –1.0 –0.1 µA

‘H’-level reset output voltage V

ORH(1)

/ RES(2) : 10kΩ pull-up 4.8 5.0 5.2 V

V

ORH(2)

‘L’-level reset output voltage1 V

ORL(1)

1/ RES(2) : 10kΩ pull-up 40 200 mV

V

ORL(2)

1

‘L’-level reset output voltage2 V

ORL(1)

2/ I

RES(1)=IRES(2)

=8mA 0.16 0.8 V

V

ORL(2)

2

CK input pulse width t

CKW

VCK=5V 3 µs

Reset output delay time t

d

Ct=1µF 7.5 10 12.5 ms

Watchdog time t

WD

Ct=1µF 30 40 50 ms

Watchdog reset time t

WR

Ct=1µF 0.1 0.25 0.4 ms

Reset hysteresis voltage Vhys V

S

=4.5V 100 200 300 mV

LA5692D, 5692S, 5692M

No.2770-2/6