Ordering number :ENN5673 Monolithic linear IC LA5619M Lead Battery Charger IC with Battery Voltage Detection Function Overview Package Dimensions The LA5619M is a single-chip IC that integrates a battery voltage detection function and a lead battery charger to support compact sets. unit: mm 3097-MFP16FS Functions 16 9 1.8max 8 1 6.35 7.6 5.4 • 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 0.625 [LA5619M] 0.15 0.1 1.5 12.6 0.35 1.0 1.35 2.8 0.625 SANYO: MFP16FS Specifications Maximum Rating at Ta = 25°C Parameter Supply voltage Battery pin voltage Symbol Conditions Ratings Unit VCC max 15 VBattery max 6 V 0.7 W Allowable power dissipation Pd max V Operating temperature Topr –20 to +80 °C Storage temperature Tstg –30 to +125 °C Ratings Unit Operating Conditions at Ta = 25°C Parameter Supply voltage Symbol VCC Conditions 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 min typ Unit max [Charge System] Charge voltage (when trickle is selected) VO1 IO = 10 mA 4.4 4.6 4.7 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 112.5 125 137.5 mA RL = 33 Ω V 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 ICC1 IO = 0 mA 6 10 mV ICC2 IO = 50 mA (ICC2 includes IO) 65 73 mA ICC3 RL = 33 Ω (ICC3 includes IO) 155 175 mA 1.1 1.3 V 200 nA CHG DET, OUT remaining voltage VCHG-LED IIN = 40 mA CHG DET, OUT leak voltage ICHG-LED CHARGE detection current VIN = 9 V 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 VCC DET leak voltage IDET VIN = 9 V 1.1 1.3 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 VBatt 3.17 3.3 3.43 V 0.3 0.5 V 200 nA µA [Battery System] Battery detection voltage VBatt DET OUT1 pin’s remaining voltage VBAT-OUT1 IIN = 40 mA VBatt DET OUT1 pin’s leak current IBAT-OUT1 VIN = 5 V Current drain when detection circuit is off IOFF batt = 2.5 V Current drain when detection circuit is on ION No load Current drain during Battery SAVE VBatt DET OUT2 pin’s remaining voltage ISAVE VBatt CTRL = 4 V VBAT-OUT2 IIN = 40 mA 5 6 350 500 µA 20 30 µA 1.1 1.3 V [Internal Transistors for Reset] REST OUT remaining voltage VREST REST.IN = 2 µA, IIN = 50 µA REST OUT leak current IREST VIN = 5 V 0.3 0.5 V 200 nA [VBatt CTRL Pin] Threshold voltage VBatt-CTRL VBatt CTRL pin input current IBatt-CTRL 1.10 VIN = 4 V 1.27 1.50 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 Trickle charge Charge current characteristics Battery pin voltage Charge current Current limiting with current limiter Detects charge current of 23 mA and switches charge voltage from 4.9 V to 4.6 V * Charge current is variable Charge voltage characteristics Charging time 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 Rest voltage 2.8 [V] 3.3 [V] or higher The VBatt 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 VBatt circuit operates, and if it is lower than 3.3 [V], it does not start up. No. 5673-3/8 LA5619M Charge current VBatt [V] Cycle ↔ Trickle Switching Hysteresis Charge current IBatt [mA] Charge Detection Hysteresis LED off LED on Charge current IBatt [mA] No. 5673-4/8 LA5619M Timing Charts (Battery provided) (Battery only) No. 5673-5/8 LA5619M Block Diagram To current limiter Overdrive control Reset IC OUT GND (frame) 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. No. 5673-6/8 LA5619M Battery detection voltage, VBatt — V Battery detection voltage, VBatt — V Cycle selected (75 Ω load) Trickle selected (no load) Supply voltage, VCC — V LED off LED on VCHGDETOUT voltage, VCHGDETOUT — V VCCDET voltage, VCCDET — V Charge current, IBatt — mA LED off LED on Charge current, IBatt — mA LED off LED on Battery pin voltage, VBatt — V Output peak current, Iop — mA Battery detection voltage, VBatt — V LED on Charge current, IBatt — mA VBattDETOUT2 voltage, VBattDETOUT2 — V VCHGmode voltage, VCHGmode — V Supply voltage, VCC — V LED off Operating temperature, Ta — °C Operating temperature, Ta — °C No. 5673-7/8 LA5619M 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. This catalog provides information as of February, 2000. Specifications and information herein are subject to change without notice. PS No. 5673-8/8