Sanyo LA5619M Specifications

Ordering number :ENN5673

22500RM (OT) No. 5673-1/8

Overview

The LA5619M is a single-chip IC that integrates a battery
voltage detection function and a lead battery charger to
support compact sets.

Functions

• Charge voltage can be switched between cycle voltage

and trickle voltage (4.9 V typ. → 4.6 V typ.).

• Charge current limit can be set with an external resistor
(125 mA typ.).

• Built-in charge current detection circuit

• Built-in battery voltage detection circuit

Package Dimensions

unit: mm

3097-MFP16FS

1

16

8

9

0.15

0.6251.35

0.35

1.0

2.8

12.6

5.4

1.8max

1.5

0.1

6.35

7.6

0.625

[LA5619M]

LA5619M

SANYO Electric Co.,Ltd. Semiconductor Company

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

Lead Battery Charger IC with Battery

Voltage Detection Function

Monolithic linear IC

SANYO: MFP16FS

Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.

SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.

Parameter Symbol Conditions Ratings Unit

Supply voltage V

CC

max 15 V

Battery pin voltage

V

Battery

max

6V
Allowable power dissipation Pd max 0.7 W
Operating temperature Topr –20 to +80 °C
Storage temperature Tstg –30 to +125 °C

Specifications

Maximum Rating at Ta = 25°C

Parameter Symbol Conditions Ratings Unit

Supply voltage V

CC

5.5 to 14.5 V

Battery pin voltage V

Battery

IN 0 to 5.5 V

CHARGE LED sink current I

CHG-LED

0 to 40 mA

DET.LED sink current I

DET-LED

0 to 40 mA

V

BAT

sink current I

BAT-LED

0 to 40 mA

Operating Conditions at Ta = 25°C

No. 5673-2/8

LA5619M

Parameter Symbol Conditions

Ratings

Unit

min typ max

[Charge System]

Charge voltage (when trickle is selected) V

O

1IO= 10 mA 4.4 4.6 4.7 V

Charge voltage (when cycle is selected) V

O

2IO= 50 mA 4.7 4.9 5.0 V

Differential charge voltage Vdif ∆V

O

= VO2– V

O1

0.2 0.3 0.4 V

Cycle → trickle switching current I

CT1

20 23 26 mA

Trickle → cycle switching current I

CT2

35 41 47 mA

Output peak current I

OP

RL= 33 Ω 112.5 125 137.5 mA

Line regulation (when trickle is selected) V

OLN1VCC

= 8 to 14.5 V, IO= 10 mA 50 100 mV

Line regulation (when cycle is selected) V

OLN2VCC

= 8 to 14.5 V, IO= 50 mA 100 150 mV

Load regulation (when trickle is selected) V

OLD1IO

= 0.5 to 30 mA 50 100 mV

Load regulation (when cycle is selected) V

OLD2IO

= 50 to 60 mA 100 150 mV

I

CC1IO

= 0 mA 6 10 mV

Current drain I

CC2IO

= 50 mA (I

CC2

includes IO) 65 73 mA

I

CC3RL

= 33 Ω (I

CC3

includes IO) 155 175 mA

CHG DET, OUT remaining voltage V

CHG-LEDIIN

= 40 mA 1.1 1.3 V

CHG DET, OUT leak voltage I

CHG-LEDVIN

= 9 V 200 nA

CHARGE detection current

I

CHG-DET1

on → off 0.15 0.25 0.35 mA

I

CHG-DET2

off → on 0.8 1.0 1.2 mA

VCC DET remaining voltage V

DETIIN

= 40 mA 1.1 1.3 V

VCC DET leak voltage I

DETVIN

= 9 V 200 nA

VCC DET detection voltage V

CC-DET

4.95 5.2 5.3 V

VCC DET hysteresis width

V

CC-DET, HYS

0.05 0.1 0.2 V

[Battery System]

Battery detection voltage V

Batt

3.17 3.3 3.43 V

V

Batt DET OUT1

pin’s remaining voltage

V

BAT-OUT1IIN

= 40 mA 0.3 0.5 V

V

Batt DET OUT1

pin’s leak current I

BAT-OUT1VIN

= 5 V 200 nA

Current drain when detection circuit is off

I

OFF

batt = 2.5 V 5 6 µA

Current drain when detection circuit is on

I

ON

No load 350 500 µA

Current drain during Battery SAVE I

SAVEVBatt CTRL

= 4 V 20 30 µA

V

Batt DET OUT2

pin’s remaining voltage

V

BAT-OUT2IIN

= 40 mA 1.1 1.3 V

[Internal Transistors for Reset]

REST OUT remaining voltage V

REST

REST.IN = 2 µA, IIN= 50 µA 0.3 0.5 V

REST OUT leak current I

RESTVIN

= 5 V 200 nA

[V

Batt CTRL

Pin]

Threshold voltage V

Batt-CTRL

1.10 1.27 1.50 V

V

Batt CTRL

pin input current I

Batt-CTRLVIN

= 4 V 17 24 µA

Operating Characteristics at Ta = 25°C, VCC= 9 V, Batt. IN = 4 V

Allowable power dissipation, Pd max — mW

Operating temperature, Ta — °C

Recommended
board mounting

Independent IC

Pin Assignment

Copper plating 180 mm

2

Board material: Paper phenol t = 1.5 mm

No. 5673-3/8

LA5619M

Battery Charger Charging Characteristics

Cycle charge

Current Drain Characteristics

Relationship between Reset and Battery Circuit

The V

Batt

circuit operates at the edge
where the reset voltage becomes Hi.
(At this time, the output transistors are
set on and the load is put on; If this
voltage is 3.3 [V] or higher, the V

Batt

circuit operates, and if it is lower than

3.3 [V], it does not start up.

Current limiting with current limiter

Charge current characteristics

Charge voltage characteristics

Detects charge current of 23 mA
and switches charge voltage
from 4.9 V to 4.6 V
* Charge current is variable

Trickle charge

Charging time

Charge current

Battery pin voltage

(+Vbat circuit current)

Reset on
Batt SAVE on current

Reset off current

(+reset circuit current)

Battery
voltage

Rest voltage 2.8 [V]

3.3 [V] or higher

No. 5673-4/8

LA5619M

Cycle ↔ Trickle Switching Hysteresis

Charge current I

Batt

[mA]

Charge current V

Batt

[V]

Charge Detection Hysteresis

Charge current I

Batt

[mA]

LED on

LED off

No. 5673-5/8

LA5619M

Timing Charts

(Battery provided)

(Battery only)

No. 5673-6/8

LA5619M

Block Diagram

Notes: 1. Use capacitors with little temperature-related capacitance fluctuation.

2. Do not provide capacitors to the Batt pin (Pin 10)

3. The reset IC must be provided externally.

Overdrive

control

GND (frame)

Reset IC

OUT

To current limiter

No. 5673-7/8

LA5619M

Battery detection voltage, V

Batt

— V

Battery detection voltage, V

Batt

— V

V

CCDET

voltage, V

CCDET

— V

V

CHGDETOUT

voltage, V

CHGDETOUT

— V

V

CHGmode

voltage, V

CHGmode

— V

V

BattDETOUT2

voltage, V

BattDETOUT2

— V

Battery detection voltage, V

Batt

— V

Output peak current, Iop — mA

Operating temperature, Ta — °C Operating temperature, Ta — °C

Charge current, I

Batt

— mA Battery pin voltage, V

Batt

— V

Charge current, I

Batt

— mA

Supply voltage, V

CC

— V

Charge current, I

Batt

— mA

Supply voltage, VCC— V

Cycle selected (75 Ω load)

Trickle selected (no load)

LED off

LED off

LED off

LED off

LED on

LED on

LED on

LED on

This catalog provides information as of February, 2000. Specifications and information herein are subject
to change without notice.

Specifications of any and all SANYO products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees
of the performance, characteristics, and functions of the described products as mounted in the customer’s
products or equipment. To verify symptoms and states that cannot be evaluated in an independent device,
the customer should always evaluate and test devices mounted in the customer’s products or equipment.

SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could
give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire,
or that could cause damage to other property. When designing equipment, adopt safety measures so
that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective
circuits and error prevention circuits for safe design, redundant design, and structural design.

In the event that any or all SANYO products (including technical data, services) described or contained
herein are controlled under any of applicable local export control laws and regulations, such products must
not be exported without obtaining the export license from the authorities concerned in accordance with the
above law.

No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system,
or otherwise, without the prior written permission of SANYO Electric Co., Ltd.

Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the “Delivery Specification”
for the SANYO product that you intend to use.

Information (including circuit diagrams and circuit parameters) herein is for example only; it is not
guaranteed for volume production. SANYO believes information herein is accurate and reliable, but
no guarantees are made or implied regarding its use or any infringements of intellectual property rights
or other rights of third parties.

PS No. 5673-8/8

LA5619M