RICOH R3132x, R3133x Technical data

R3132x/R3133x SERIES

LOW VOLTAGE DETECTOR WITH BUILT-IN DELAY CIRCUIT

NO.EA-093-120404

Notice

R3133Q Series scheduled to be discontinued (be sold to limited customer): "Limited"

OUTLINE

R3132x/R3133x Series are CMOS-based low voltage detector ICs with built-in delay circuit, high detector threshold accuracy, and ultra low supply current, which can operate at low voltage.

These ICs can be used as system reset generators, and each of these ICs consists of a voltage reference, a comparator, resistors for setting voltage detector threshold, an output driver transistor, manual reset circuit, and an output delay generator.

Detector threshold is fixed internally with high accuracy and requires no adjustment. When a supply voltage crosses a setting detector threshold voltage from a high value to a lower value, this IC generates reset signal.

R3132x Series output “L” at its detect, while R3133x Series output “H”.

Since each of R3132x/R3133x Series embeds an output delay generator, during a setting 240ms delay time, which is fixed in the IC, this IC keeps the reset condition after they are released. Released conditions are the case when a supply voltage crosses a setting detector threshold voltage from a low value to a higher value, or when this IC is released from manual reset.

Two output types, Nch open drain type and CMOS type, are available.

Since the package for these ICs are ultra small SC-82AB package and SON1612-6, high density mounting of the ICs on board is possible.

FEATURES

• Supply current.......................................................................		Typ. 0.8μA (R313xx27x: VDD=3.0V)
•	Operating Voltage Range......................................................	0.8V to 6.0V (Topt=25°C)
•	Detector Threshold................................................................	Setting with a step of 0.1V in the range of 1.0V
		to 5.0V is possible. Further, 2.32V, 2.63V, 2.93V,
		3.08V, 4.38V, and 4.63V can be provided as
		standard.
•	Embedded Power on Reset Delay Time Circuit....................	Typ. 240ms
• Detector Threshold Accuracy................................................		±2.0%
• Released Delay Time Accuracy ............................................		±15.0%
•	Temperature-Drift Coefficient of Detector Threshold ............	Typ. ±100ppm/°C
•	Output Types.........................................................................	Nch Open Drain and CMOS
•	Packages ..............................................................................	SC-82AB, SON1612-6

APPLICATIONS

•CPU and Logic Circuit Reset

•Battery Checker

•Window Comparator

•Wave Shaping Circuit

•Battery Back-up Circuit

•Power Failure Detector

1

R3132x/R3133x

BLOCK DIAGRAMS

R3132xxxEA Nch Open Drain Output R3132xxxEC CMOS Output

VDD

-	Delay
+	Circuit

Vref

GND

MR

VDD

MR

		-	Delay	OUT
	OUT	+	Circuit
		Vref
		GND

R3133xxxEA Nch Open Drain Output

R3133xxxEC CMOS Output

VDD

-	Delay
+	Circuit

Vref

GND

MR	VDD
	-
VOUT	+
	Vref
	GND

		MR
	Delay	OUT
	Circuit

2

R3132x/R3133x

SELECTION GUIDE

The package type, the detector threshold, the output type and the taping type for the ICs can be selected at the users’ request.

Product Name	Package	Quantity per Reel		Pb Free	Halogen Free
R3132DxxE (y)-TR-FE	SON1612-6	4,000 pcs		Yes	Yes
R3133DxxE (y)-TR-FE
R3132QxxE (y)-TR-FE	SC-82AB	3,000 pcs		Yes	Yes
R3133QxxE (y)-TR-FE (Limited)
xx: The detector threshold can be designated in the range from 1.0V(10) to 5.0V(50) in 0.1V steps.
y: If the detector threshold includes the 3rd digit, indicate the digit of 0.01V.
(2.32V, 2.63V, 2.93V, 3.08V, 4.38V, 4.63V)
Ex. If the detector threshold is 2.63V, R3132x26E 3-TR-FE.
: Designation of Output Type
(A) Nch Open Drain
(C) CMOS

3

R3132x/R3133x

PIN CONFIGURATIONS

• SON1612-6							• SC-82AB
	6		5		4		4	3

(mark side)

(mark side)

1 2 3 1 2

PIN DESCRIPTIONS

• SON1612-6

Pin No	Symbol	Pin Description
1	VDD	Input Pin
2	GND	Ground Pin
3	MR	Manual Reset Input Pin
		Active at “L” input. Pulled up via 1MΩ. If MR pin is not necessary,
		open this node, or connect to VDD.
4	OUT	Output Pin
		R3132D Series:"L" at detection
		R3133D Series:"H" at detection
5	GND	Ground Pin
6	NC	No Connection

• SC-82AB

Pin No	Symbol	Pin Description
1	GND	Ground Pin
2	OUT	Output Pin
		R3132Q Series :"L" at detection
		R3133Q Series (Limited) :"H" at detection
3	MR	Manual Reset Input Pin
		Active at "L" input. Pulled up via 1MΩ. If MR pin is not necessary,
		open this node, or connect to VDD.
4	VDD	Input Pin

4

			R3132x/R3133x
ABSOLUTE MAXIMUM RATINGS
Symbol	Item	Rating		Unit
VDD	Supply Voltage	6.5		V
VOUT	Output Voltage (Nch Open Drain Output)	VSS−0.3 to 6.5		V
	Output Voltage (CMOS Output)	VSS−0.3 to VDD+0.3
VMR	Input Voltage	VSS−0.3 to VDD+0.3		V
IOUT	Output Current	20		mA
PD	Power Dissipation (SON1612-6) 1, 2	500		mW
	Power Dissipation (SC-82AB) 2	380
Topt	Operating Temperature Range	−40 to 85		°C
Tstg	Storage Temperature Range	−55 to 125		°C
Tsolder	Soldering Temperature	260°C, 10s

1) This specification is at mounted on board.

PD depends on conditions of mounting on board. This specification is based on the measurement at the condition below:

Measurement Conditions

Environment: Mounted on board (Wind velocity 0m/s) Board Material: FR-4 (2-layer)

Board dimensions : 40mm x 40mm x t1.6mm Copper Area : 50%

2) For Power Dissipation, please refer to PACKAGE INFORMATION.

ABSOLUTE MAXIMUM RATINGS

Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the permanent damages and may degrade the life time and safety for both device and system using the device in the field. The functional operation at or over these absolute maximum ratings is not assured.

5

R3132x/R3133x

ELECTRICAL CHARACTERISTICS

Topt=25°C

Symbol

Item

Test Conditions

Min.

Typ.

Max.

Unit

R3132

Topt=25°C

0.75

6.0

VDD

Operating Voltage

−40°C≤Topt≤85°C

0.85

6.0

V

R3133

Topt=25°C

0.80

6.0

−40°C≤Topt≤85°C

0.90

6.0

VDET

Detector Threshold

VDET×

VDET×

V

0.98

1.02

ISS1

Supply Current1

VDD=VDET−0.1V, IOUT=0A

2.0

μA

ISS2

Supply Current2

VDD=VDET+0.1V, IOUT=0A

2.0

μA

VDD=6.0V,

VDET<1.6V

3.6

ISS3

Supply Current3

μA

1.6V≤VDET<2.7V

3.0

IOUT=0A

2.7V≤VDET

2.5

VOH

“H” Output Voltage

Refer to the following table.

VOL

“L” Output Voltage

Refer to the following table.

RMR

MR pin pull-up

Topt=25°C

0.5

1.0

4.0

MΩ

resistance

Trst

Output Delay Time for

DD=

DET

DET−

0.1V

15

μ

detect

V

V to V

s

Tdelay

Output Delay Time for

VDD=0.8V to VDET+1.0V

204

240

276

ms

release

VDET/

Detector Threshold

−40°C≤Topt≤85°C

±100

ppm/

Topt

Temperature Coefficient

°C

) Guaranteed by design, not mass production tested.

RECOMMENDED OPERATING CONDITIONS (ELECTRICAL CHARACTERISTICS)

All of electronic equipment should be designed that the mounted semiconductor devices operate within the recommended operating conditions. The semiconductor devices cannot operate normally over the recommended operating conditions, even if when they are used over such conditions by momentary electronic noise or surge. And the semiconductor devices may receive serious damage when they continue to operate over the recommended operating conditions.

6

R3132x/R3133x

• "H" Output Voltage (VOH) table

						Topt=25°C
Products	Test Conditions		Min.	Typ.	Max.		Unit
	VDET<1.2V	VDD=VDET+0.1V, IOH=−50μA
R3132xxxEC	1.2V≤VDET<2.0V	VDD=VDET+0.1V, IOH=−150μA	0.8×VDD				V
	2.0V≤VDET<3.1V	VDD=VDET+0.1V, IOH=−500μA
	3.1V≤VDET	VDD=VDET+0.1V, IOH=−800μA
	VDET<1.2V	VDD=VDET−0.1V, IOH=−10μA
R3133xxxEC	1.2V≤VDET<2.0V	VDD=VDET−0.1V, IOH=−100μA	0.8×VDD				V
	2.0V≤VDET<3.1V	VDD=VDET−0.1V, IOH=−500μA
	3.1V≤VDET	VDD=VDET−0.1V, IOH=−800μA

VDET is a set value.

• "L" Output Voltage (VOL) table

								Topt=25°C
Symbol	Item			Test Conditions	Min.	Typ.	Max.		Unit
	VDET<1.2V			VDD=VDET−0.1V, IOL=20μA
							0.3		V
R3132xxxEx	1.2V≤V	DET	<1.6V	VDD=VDET−0.1V, IOL=750μA
	1.6V≤VDET<3.1V			VDD=VDET−0.1V, IOL=1.2mA
	3.1V≤VDET			VDD=VDET−0.1V, IOL=3.2mA			0.4		V
	VDET<1.2V			VDD=VDET+0.1V, IOL=20μA
R3133xxxEx	1.2V≤V	DET	<1.6V	VDD=VDET+0.1V, IOL=750μA			0.3		V
	1.6V≤VDET<3.1V			VDD=VDET+0.1V, IOL=1.2mA
	3.1V≤VDET			VDD=VDET+0.1V, IOL=3.2mA			0.4		V

VDET is a set value.

7

R3132x/R3133x

DETECTOR THRESHOLD SPECIFICATIONS BY PART NUMBER

• R3132x

		Operating Voltage				Detector Threshold			Supply Current 1
Part Number
			VDD[V]				VDET[V]		ISS1[μA]
	Conditions	Min.		Conditions	Min.	Min.	Typ.	Max.	Conditions	Typ.	Max.
R3132x23Ex2						2.274	2.320	2.366		0.8
R3132x26Ex3						2.578	2.630	2.682
R3132x29Ex3	Topt=25°C	0.75		−40°C≤Topt≤85°C	0.85	2.872	2.930	2.988	VDD=VDET−0.1V		2.0
R3132x30Ex8						3.019	3.080	3.141	IOUT=0A	0.9
R3132x43Ex8						4.293	4.380	4.467
R3132x46Ex3						4.538	4.630	4.722
R3132x10Ex						0.980	1.000	1.020
R3132x11Ex						1.078	1.100	1.122
R3132x12Ex						1.176	1.200	1.224
R3132x13Ex						1.274	1.300	1.326
R3132x14Ex						1.372	1.400	1.428
R3132x15Ex						1.470	1.500	1.530
R3132x16Ex						1.568	1.600	1.632
R3132x17Ex						1.666	1.700	1.734
R3132x18Ex						1.764	1.800	1.836		0.8
R3132x19Ex						1.862	1.900	1.938
R3132x20Ex						1.960	2.000	2.040
R3132x21Ex						2.058	2.100	2.142
R3132x22Ex						2.156	2.200	2.244
R3132x23Ex						2.254	2.300	2.346
R3132x24Ex						2.352	2.400	2.448
R3132x25Ex						2.450	2.500	2.550
R3132x26Ex						2.548	2.600	2.652
R3132x27Ex						2.646	2.700	2.754
R3132x28Ex						2.744	2.800	2.856
R3132x29Ex						2.842	2.900	2.958	VDD=VDET−0.1V
R3132x30Ex	Topt=25°C	0.75		−40°C≤Topt≤85°C	0.85	2.940	3.000	3.060			2.0
									IOUT=0A
R3132x31Ex						3.038	3.100	3.162
R3132x32Ex						3.136	3.200	3.264
R3132x33Ex						3.234	3.300	3.366
R3132x34Ex						3.332	3.400	3.468
R3132x35Ex						3.430	3.500	3.570
R3132x36Ex						3.528	3.600	3.672
R3132x37Ex						3.626	3.700	3.774
R3132x38Ex						3.724	3.800	3.876		0.9
R3132x39Ex						3.822	3.900	3.978
R3132x40Ex						3.920	4.000	4.080
R3132x41Ex						4.018	4.100	4.182
R3132x42Ex						4.116	4.200	4.284
R3132x43Ex						4.214	4.300	4.386
R3132x44Ex						4.312	4.400	4.488
R3132x45Ex						4.410	4.500	4.590
R3132x46Ex						4.508	4.600	4.692
R3132x47Ex						4.606	4.700	4.794
R3132x48Ex						4.704	4.800	4.896
R3132x49Ex						4.802	4.900	4.998
R3132x50Ex						4.900	5.000	5.100

8

R3132x/R3133x

Supply Current 2			Supply Current 3			"H" Output Voltage
ISS2[μA]			ISS3[μA]			VOH[V]
Conditions	Typ.	Max.	Conditions	Typ.	Max.	Conditions	Min.
				1.2	3.0	VDD=VDET+0.1V
VDD=VDET+0.1V	0.8	2.0	VDD=6.0V			IOH=−500μA	0.8×
IOUT=0A			IOUT=0A				VDD
				1.0	2.5
						VDD=VDET+0.1V
						IOH=−800μA
						VDD=VDET+0.1V
						IOH=−50μA
					3.6
				1.4		VDD=VDET+0.1V
					3.0	IOH=−150μA
				1.2
						VDD=VDET+0.1V
						IOH=−500μA
VDD=VDET+0.1V	0.8	2.0	VDD=6.0V				0.8×
IOUT=0A			IOUT=0A				VDD
				1.0
					2.5
						VDD=VDET+0.1V
						IOH=−800μA
				0.8

9