Sanyo LA5619M Specifications

Ordering number :ENN5673

Monolithic linear IC

LA5619M

Lead Battery Charger IC with Battery

Voltage Detection Function

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

Specifications

Maximum Rating at Ta = 25°C

Package Dimensions

unit: mm

3097-MFP16FS

[LA5619M]

16	9	0.625
	5.4	6.35	7.6

1	8		1.8max	0.15
	12.6
			1.5
	0.35		0.1
		1.35	0.625
	1.0
		2.8

SANYO: MFP16FS

Parameter	Symbol	Conditions	Ratings	Unit
Supply voltage	VCC max		15	V
Battery pin voltage	VBattery max		6	V
Allowable power dissipation	Pd max		0.7	W
Operating temperature	Topr		–20 to +80	°C
Storage temperature	Tstg		–30 to +125	°C
Operating Conditions at Ta = 25°C
Parameter	Symbol	Conditions	Ratings	Unit
Supply voltage	VCC		5.5 to 14.5	V
Battery pin voltage	VBattery IN		0 to 5.5	V
CHARGE LED sink current	ICHG-LED		0 to 40	mA
DET.LED sink current	IDET-LED		0 to 40	mA
VBAT sink current	IBAT-LED		0 to 40	mA

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.

SANYO Electric Co.,Ltd. Semiconductor Company

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

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

LA5619M

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

	Parameter	Symbol	Conditions		Ratings		Unit
				min	typ	max
	[Charge System]
	Charge voltage (when trickle is selected)	VO1	IO = 10 mA	4.4	4.6	4.7	V
	Charge voltage (when cycle is selected)	VO2	IO = 50 mA	4.7	4.9	5.0	V
	Differential charge voltage	Vdif	VO = VO2 – VO1	0.2	0.3	0.4	V
	Cycle → trickle switching current	ICT1		20	23	26	mA
	Trickle → cycle switching current	ICT2		35	41	47	mA
	Output peak current	IOP	RL = 33 Ω	112.5	125	137.5	mA
	Line regulation (when trickle is selected)	VOLN1	VCC = 8 to 14.5 V, IO = 10 mA		50	100	mV
	Line regulation (when cycle is selected)	VOLN2	VCC = 8 to 14.5 V, IO = 50 mA		100	150	mV
	Load regulation (when trickle is selected)	VOLD1	IO = 0.5 to 30 mA		50	100	mV
	Load regulation (when cycle is selected)	VOLD2	IO = 50 to 60 mA		100	150	mV
		ICC1	IO = 0 mA		6	10	mV
	Current drain	ICC2	IO = 50 mA (ICC2 includes IO)		65	73	mA
		ICC3	RL = 33 Ω (ICC3 includes IO)		155	175	mA
	CHG DET, OUT remaining voltage	VCHG-LED	IIN = 40 mA		1.1	1.3	V
	CHG DET, OUT leak voltage	ICHG-LED	VIN = 9 V			200	nA
	CHARGE detection current	ICHG-DET1	on → off	0.15	0.25	0.35	mA
		ICHG-DET2	off → on	0.8	1.0	1.2	mA
	VCC DET remaining voltage	VDET	IIN = 40 mA		1.1	1.3	V
	VCC DET leak voltage	IDET	VIN = 9 V			200	nA
	VCC DET detection voltage	VCC-DET		4.95	5.2	5.3	V
	VCC DET hysteresis width	VCC-DET, HYS		0.05	0.1	0.2	V
	[Battery System]
	Battery detection voltage	VBatt		3.17	3.3	3.43	V
	VBatt DET OUT1 pin’s remaining voltage	VBAT-OUT1	IIN = 40 mA		0.3	0.5	V
	VBatt DET OUT1 pin’s leak current	IBAT-OUT1	VIN = 5 V			200	nA
	Current drain when detection circuit is off	IOFF	batt = 2.5 V		5	6	µA
	Current drain when detection circuit is on	ION	No load		350	500	µA
	Current drain during Battery SAVE	ISAVE	VBatt CTRL = 4 V		20	30	µA
	VBatt DET OUT2 pin’s remaining voltage	VBAT-OUT2	IIN = 40 mA		1.1	1.3	V
	[Internal Transistors for Reset]
	REST OUT remaining voltage	VREST	REST.IN = 2 µA, IIN = 50 µA		0.3	0.5	V
	REST OUT leak current	IREST	VIN = 5 V			200	nA
	[VBatt CTRL Pin]
	Threshold voltage	VBatt-CTRL		1.10	1.27	1.50	V
	VBatt CTRL pin input current	IBatt-CTRL	VIN = 4 V		17	24	µA

Allowable power dissipation, Pd max — mW

Pin Assignment

Recommended board mounting

Copper plating 180 mm2

Board material: Paper phenol t = 1.5 mm

Independent IC

Operating temperature, Ta — °C

No. 5673-2/8

LA5619M

Battery Charger Charging Characteristics

Cycle charge

		Current limiting with current limiter
	voltage	Charge current characteristics
Charge current	Battery pin	Charge voltage characteristics

Charging time

Trickle charge

Detects charge current of 23 mA and switches charge voltage from 4.9 V to 4.6 V

* Charge current is variable

Current Drain Characteristics

(+Vbat circuit current)

Reset on

Batt SAVE on current

Reset off current

(+reset circuit current)

Relationship between Reset and Battery Circuit

Battery voltage

The VBatt circuit operates at the edge where the reset voltage becomes Hi. (At this time, the output transistors are

3.3 [V] or higher

Rest voltage 2.8 [V] set on and the load is put on; If this voltage is 3.3 [V] or higher, the VBatt circuit operates, and if it is lower than 3.3 [V], it does not start up.

No. 5673-3/8