Battery Protection IC provides over-current detection.

Press Release Summary:




S-8243A/B Series incorporates battery protection circuits, battery monitor amp, and voltage regulator, reducing board space requirements. 3-serial and 4-serial cell LI-ION ICs have 3 levels of detection: over-charge (+/- 25 mV), over-discharge (+/- 80 mV) and over-current (+/- 25 mV). Applications include notebook computers, hand-held scanners, and other portable electronic devices that use lithium-ion rechargeable battery packs.




Original Press Release:



Seiko Announces 3- & 4-Cell Battery Protection ICs With 3 Levels Of Over-Current Detection



Torrance, CA, February 26, 2002. Seiko Instruments breaks new ground again, introducing the first 3-serial and 4-serial cell LI-ION Battery Protection ICs (BPIC) with three levels of over-current detection. The S-8243A/B Series incorporates high-accuracy battery protection circuits, a battery monitor amp and a voltage regulator, therefore decreasing external component count and reducing board space by 50%. Seiko's S-8243 BPIC has superior accuracy for over-charge (± 25 mV), over-discharge (± 80 mV) and over-current 1 (± 25 mV) detection voltages. Applications for the S-8243 include notebook computers, hand-held scanners, and other portable electronic devices that use lithium-ion rechargeable battery packs.

Keeping with Seiko's requirement that all products be low current, the S-8243 consumes only 120 micro A while operating and only 0.1 ,micro A in power-down mode. Housed in a 16-pin TSSOP package, the S-8243 measures only 5.1 mm by 6.4 mm and 11 mm tall. The S-8243A is designed for three-cell applications and the S-8243B for four-cell applications.

The S-8243 Series is available now and is priced at $1.50 each in quantities of 10,000 through a national network of authorized distributors, including All American and Mouser. Samples are available for some versions in the series.

Full technical specifications, application notes and FAQs are available at the following site: seiko-usa-ecd.com/intcir/products/power/s8243a-b.html

ABOUT SEIKO
Seiko Instruments' semiconductor technology originated in the integrated circuits used in Seiko watches. This application demands ultra-low power consumption coupled with precision performance, high processing accuracy and top quality. Seiko Instruments has adapted this basic CMOS technology to create a line of standard products for energy management. These ICs feature the lowest current consumption available to give you the longest battery life, or the most energy efficient operation for line operated equipment.

Seiko Instruments is totally committed to providing the highest quality semiconductors to enhance the value of its customers' end products. Seiko Instruments' IC products include: Internet ICs, Switching Regulators, Voltage Detectors, Single Gate Logic ASSPs, Low DropOut (LDO) Voltage Regulators, Real Time Clocks, Temperature Sensors and Low Voltage E2PROMs.

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