RICOH R3150N Technical data

R3150N Series

36V Input VD with Delay Function or SENSE pin

The R3150N Series are CMOS-based 36V input voltage detector ICs. Since the maximum input voltage of R3150N is 36V (absolute maximum rating: 50V) and R3150N has high voltage accuracy and low supply current, it is suitable for car battery voltage supervisor. There are two versions: A/B versions provide VDD pin detection and E/F versions provide SENSE pin detection. Detector threshold and Release voltage can be specified separately. Both the detector threshold accuracy and the release voltage accuracy are ±1.5%.

The detect output delay time and the release output delay time (Power-on Reset Time) can be set by a pin. The output types are Nch open drain "L" output and Nch open drain "H" output. SOT-23-6 package is available.

) These products are suitable for automotive applications too. Please refer to our "Car Electronics Products Catalog" or contact us.

FEATURES

• Supply Current (ISS) ························Typ. 3.8μA (at release / at detect) (A/B Version)		• Release Voltage Range (+VDET) ········5.3V to 11.0V (internally fixed)
Typ. 3.5μA (at release / at detect) (E/F Version)		• Release Voltage Accuracy ··············±1.5%
• Operating Voltage Range (VDD) ······1.4V to	36.0V (A/B Version)	• Release Output Delay·····················Typ. 10ms delay set with a
3.6V to	6.0V (E/F Version)	0.01μF external capacitor
• SENSE Pin Input Voltage Range (VSENSE) ···Max. 36.0V (E/F Version)		• Reset Signal ···································"L" (A/E Version),
• Detector Threshold Range (-VDET)·····5.0V to	10.0V (internally fixed)	“H” (B/F Version)
• Detector Threshold Accuracy ·········±1.5%		• Output Type ····································Nch. Open Drain
• Detect Output Delay ·······················Typ. 10ms delay set with a 0.01μF		• Package··········································SOT-23-6

external capacitor

(The above shows specification at Topt=25°C. Design assurance value at -40°C ≤ Topt ≤ 105°C is also available. For details, please refer to the datasheet.)

BLOCK DIAGRAMS

R3150NxxxA/B	R3150NxxxE/F
(VDD pin detection)	(SENSE pin detection)

	CR		SENSE	CR
VDD	DOUT	VDD		DOUT
	Delay			Delay
	Circuit			Circuit
	Vref			Vref
	GND			GND
	CD			CD

Blue line: only R3150NxxxB

Blue line: only R3150NxxxF

SELECTION GUIDE

Halogen Free	Package	Q'ty per Reel	Part No.
	SOT-23-6	3,000 pcs	R3150N.xxx	-TR-JE

.xxx : Specify a combination of detector threshold voltage and released Voltage using serial numbers.

. :Select from (.A.) VDD pin detection type “L” Output,

(.B.) VDD pin detection type “H” Output, (.E.) SENSE pin detection type “L” Output, or (.F.) SENSE pin detection type “H” Output.

PACKAGE (Top View)

SOT-23-6

6 5 4

TIMING CHART

R3150NxxxA

R3150NxxxE

VDD

VDD(Min.)

VDD

+VDET

-VDET

+VDET

-VDET

VDDL

VSENSE

treset

tdelay

treset

tdelay

Pull-up Voltage

Pull-up Voltage

tdelay

treset

tdelay

treset

1

2

3

VDOUT

VDOUT

Indefinite

Indefinite

1

CD

Indefinite

R3150NxxxB

R3150NxxxF

2

CR

3

NC (A/B), SENSE (E/F)

VDD

4

VDD

VDD

+VDET

5

GND

-VDET

+VDET

VSENSE

-VDET

6

DOUT

treset

tdelay

treset

tdelay

tdelay

treset

tdelay

treset

Pull-up Voltage

Pull-up Voltage

VDOUT

VDOUT

APPLICATIONS

• Microcontroller and logic circuit reset

• Battery checker

•Battery back-up circuit

•Power failure detector for digital home appliances

No.EK-230-120622

CMOS Voltage Detector

1.The products and the product specifications described in this document are subject to change or discontinuation of production without notice for reasons such as improvement. Therefore, before deciding to use the products, please refer to Ricoh sales representatives for the latest information thereon.

2.The materials in this document may not be copied or otherwise reproduced in whole or in part without prior written consent of Ricoh.

3.Please be sure to take any necessary formalities under relevant laws or regulations before exporting or otherwise taking out of your country the products or the technical information described herein.

4.The technical information described in this document shows typical characteristics of and example application circuits for the products. The release of such information is not to be construed as a warranty of or a grant of license under Ricoh's or any third party's intellectual property rights or any other rights.

5.The products listed in this document are intended and designed for use as general electronic components in standard applications (o ce equipment, telecommunication equipment, measuring instruments, consumer electronic products, amusement equipment etc.). Those customers intending to use a product in an application requiring extreme quality and reliability, for example, in a highly specific application where the failure or misoperation of the product could result in human injury or death (aircraft, spacevehicle, nuclear reactor control system, tra c control system, automotive and transportation equipment, combustion equipment, safety devices, life support system etc.) should first contact us.

6.We are making our continuous e ort to improve the quality and reliability of our products, but semiconductor products are likely to fail with certain probability. In order to prevent any injury to persons or damages to property resulting from such failure, customers should be careful enough to incorporate safety measures in their design, such as redundancy feature, firecontainment feature and fail-safe feature. We do not assume any liability or responsibility for any loss or damage arising from misuse or inappropriate use of the products.

7.Anti-radiation design is not implemented in the products described in this document.

8.Please contact Ricoh sales representatives should you have any questions or comments concerning the products or the technical information.

RICOH COMPANY,LTD. Electronic Devices Company

■Ricoh presented with the Japan Management Quality Award for 1999.

Ricoh continually strives to promote customer satisfaction, and shares the achievements of its management quality improvement program with people and society.

■Ricoh awarded ISO 14001 certification.

The Ricoh Group was awarded ISO 14001 certification, which is an international standard for environmental management systems, at both its domestic and overseas production facilities. Our current aim is to obtain ISO 14001 certification for all of our business offices.

http://www.ricoh.com/LSI/

RICOH COMPANY, LTD.

Electronic Devices Company

● Higashi-Shinagawa O ce (International Sales)

3-32-3, Higashi-Shinagawa, Shinagawa-ku, Tokyo 140-8655, Japan Phone: [phone] Fax: [phone]

RICOH EUROPE (NETHERLANDS) B.V.

● Semiconductor Support Centre

Prof. W.H.Keesomlaan 1, 1183 DL Amstelveen, The Netherlands P.O.Box 114, 1180 AC Amstelveen

Phone: [phone] Fax: [phone]

RICOH ELECTRONIC DEVICES KOREA Co., Ltd.

11 floor, Haesung 1 building, 942, Daechidong, Gangnamgu, Seoul, Korea Phone: [phone] Fax: [phone]

RICOH ELECTRONIC DEVICES SHANGHAI Co., Ltd.

Room403, No.2 Building, 690#Bi Bo Road, Pu Dong New district, Shanghai 201203, People's Republic of China

Phone: [phone] Fax: [phone]

RICOH COMPANY, LTD.

Electronic Devices Company ● Taipei o ce

Ricoh completed the organization of the Lead-free production for all of our products. After Apr. 1, 2006, we will ship out the lead free products only. Thus, all products that will be shipped from now on comply with RoHS Directive.

Room109, 10F-1, No.51, Hengyang Rd., Taipei City, Taiwan (R.O.C.) Phone: [phone]/1622 Fax: [phone]