Sanyo LA5615M Specifications

Ordering number :ENN5285

Monolithic linear IC

LA5615M

Lead Battery Charger IC with Battery Voltage Detection Function

Overview

The LA5615M is an IC that integrates a battery voltage detection and lead battery charger on a single chip that supports compact sets.

Functions and Features

•Charge voltage can be switched between cycle charge and trickle charge (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

[LA5615M]

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	VBatt max		6	V
Allowable power dissipation	Pd max		0.7	mW
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		6.15 to 14.5	V
Battery pin voltage	VBatt 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
VBatt sink current	IBatt-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. 5285-1/7

LA5615M

Electrical Characteristics at Ta = 25°C, VCC = 9 V = VBatt IN = 4 V

	Parameter	Symbol	Conditions		Ratings		Unit
				min	typ	max
	[Charge System]
	Charge voltage (when trickle is selected)	VO1	IO = 10 mA	4.45	4.6	4.75	V
	Charge voltage (when cycle is selected)	VO2	IO = 50 mA	4.75	4.9	5.05	V
	Differential voltage of VO2 and VO1	VO	VO = VO2 – VO1	0.2	0.3	0.4	V
	Cycle trickle switching current	ICT		34	40	46	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
	Current drain	IQ1	IO = 0 mA		6	10	mV
		IQ2	IO = 50 mA		13	21	mA
	CHARGE LED residual voltage	VCHG-LED	IIN = 40 mA		1.1	1.3	V
	CHARGE LED leak current	ICHG-LED	VIN = 9 V			200	nA
	CHARGE detection current	ICHARGED		0.8	1	1.2	mA
	DET LED residual voltage	VDET	IIN = 40 mA		1.1	1.3	V
	DET LED leak current	IDET	VIN = 9 V			200	nA
	POWER DET detection voltage	VDET-IN		5.85	6.05	6.15	V
	POWER DET hysteresis width	VDET-HYS		0.1	0.2	0.3	V
	[Battery Detection System]
	Battery detection voltage	VBatt		3.17	3.3	3.43	V
	VBAT pin residual voltage	VBAT	IIN = 40 mA		0.3	0.5	V
	VBAT pin leak current	IBAT	VIN = 5 V			200	nA
	Current drain	IOFF	VBatt = 2.5 V		5	6	µA
	when detection circuit is OFF
	Current drain	ION	No load		350	500	µA
	when detection circuit is ON
	Current drain during Battery SAVE	ISAVE	VBatt. SAVE = 4 V		20	30	µA
	Battery B residual voltage	VBAT.B	IIN = 40 mA		1.1	1.3	V
	[Internal transistors for reset]
	REST residual voltage	VREST	REST.IN = 2 µA, IIN = 50 µA		0.3	0.5	V
	REST leak current	IREST	VIN = 5 V			200	nA
	[Internal transistors for reset]
	Threshold voltage	VSAVE.TH.		1.1	1.27	1.5	V
	SAVE pin input current	ISAVE..IN	VIN = 4 V		17	24	µA

No. 5285-2/7

LA5615M

Allowable power dissipation, Pd max — mW

Recommended board mounting

Independent IC

Operating temperature, Ta — °C

Recommended Board

Copper plating 180 mm2

Board material: Paper phenol t = 1.5 mm

Pin Assignment

No. 5285-3/7