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R3117N101C-TR-AE

更新时间：2025-06-11 18:18:23

品牌：RICOH

描述：Power Supply Support Circuit,

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免费 PCB/SMT

概述
规格参数
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R3117N101C-TR-AE 概述

Power Supply Support Circuit, 电源管理电路

R3117N101C-TR-AE 规格参数

是否Rohs认证：	符合	生命周期：	Active
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.7
模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT	峰值回流温度（摄氏度）：	NOT SPECIFIED
处于峰值回流温度下的最长时间：	NOT SPECIFIED	Base Number Matches：	1

R3117N101C-TR-AE 数据手册

通过下载R3117N101C-TR-AE数据手册来全面了解它。这个PDF文档包含了所有必要的细节，如产品概述、功能特性、引脚定义、引脚排列图等信息。

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R3117Nxx1 Series

AEC-Q100 Grade 2 Compliant

Low Voltage Detector with SENSE Pin for Automotive Applications

NO.EC-186-170530

NOTICE

If the SENSE pin voltage of R3117xxx1A/C make the gradual curve by raising 0.5V/ms or less, it may cause

noise when the output voltage is switched from low to high. Please use R3117xxx3A/C Series for new

designs instead of these products to avoid the above problem.

OUTLINE

The R3117Nxx1 is a CMOS-based voltage detector IC with high detector threshold accuracy and ultra-low

supply current, which can be operated at an extremely low voltage and is used for system reset as an example.

The IC consists of a voltage reference unit, a comparator, resistors for detector threshold setting, an output

driver and a hysteresis circuit. The detector threshold is fixed with high accuracy internally and does not require

any adjustment.

The tolerance of the detector threshold is ±15mV (-V^DET1.5V) or ±1.0% (1.5V< -VDET). Since the sense pin

is separated from the V^DDpin of the IC, therefore, even if the sense pin voltage becomes to 0V, the output voltage

keeps its "L" level.

Two output types, Nch open drain type and CMOS type are available. The R3117Nxx1 supports the SOT-23-5

package.

FEATURES^∗

• Operating Voltage Range (Maximum Rating).......................1.0V to 6.0V (7.0V)

• Supply Current......................................................................Typ. 0.29µA (V^DD=6.0V)

Not including the consumption current for SENSE pin.

• Detector Threshold Range....................................................0.7V to 5.0V (0.1V step)

For other voltages, refer to Mark Specification Table.

• Accuracy Detector Threshold................................................±1.0% (-V^DET1.6V), ±15mV (-VDET<1.6V)

• Temperature-Drift Coefficient of Detector Threshold ............Typ. ±30ppm/°C

• Output Types.........................................................................Nch Open Drain and CMOS

• Packages ..............................................................................SOT-23-5

∗ Ta=25°C, unless otherwise noted.

APPLICATIONS

• Voltage monitoring for car accessories including car audios, car navigation systems, and ETC systems

R3117Nxx1

NO.EC-186-170530

BLOCK DIAGRAMS

Nch Open Drain Output (R3117Nxx1A)

CMOS Output (R3117Nxx1C)

SENSE

VDD

OUT

VDD

OUT

Vref

GND

SELECTION GUIDE

The package type, the detector threshold, the output type and the taping type for the IC can be selected at the

users’ request.

Product Name

Package

Quantity per Reel

Pb Free

Halogen Free

SOT-23-5

3,000 pcs

Yes

R3117Nxx1∗-TR-#E

xx: The detector threshold can be designated in the range from 0.7V(07) to 5.0V(50) in 0.1V step.

For other voltages, please refer to Mark Specification Table.

∗ : Designation of Output Type

(A) Nch Open Drain

# : Specify Automotive Class Code

Operating Temperature

Range

Guaranteed Specs

Temperature Range

Screening

−40°C to 105°C

25°C

High Temperature

R3117Nxx1

NO.EC-186-170530

PIN DESCRIPTIONS

• SOT-23-5

(mark side)

Pin No.

Symbol

Description

DOUT

VDD

Output Pin ("L" at detection)

Input Pin

GND

Ground Pin

No Connection

SENSE

Voltage Detector Voltage Sense Pin

R3117Nxx1

NO.EC-186-170530

ABSOLUTE MAXIMUM RATINGS

Symbol

Item

Rating

Unit

VDD

Supply Voltage

7.0

VSENSE

SENSE Pin Voltage

Output Voltage (Nch Open Drain Output)

Output Voltage (CMOS Output)

Output Current

VSS−0.3 to 7.0

VSS−0.3 to VDD+0.3

VOUT

IOUT

Power Dissipation

(SOT-23-5)*

Standard Land

Pattern

420

Junction Temperature Range

Storage Temperature Range

−40 to 125

−55 to 125

°C

Tstg

* 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 are not assured.

RECOMMENDED OPERATING CONDITIONS

Symbol

Item

Rating

1.0 to 6.0

−40 to 105

Unit

V_DD

Supply Voltage

Operating Temperature Range

°C

RECOMMENDED OPERATING CONDITIONS

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.

R3117Nxx1

NO.EC-186-170530

ELECTRICAL CHARACTERISTICS

The specifications surrounded by

are guaranteed by design engineering at -40°C ≤ Ta ≤ 105°C.

R3117Nxx1A/C

(Ta=25°C)

Symbol

Item

Conditions

Min.

Typ.

Max.

Unit

1.0V

VDD

5.25V -VDET-15

-VDET+15

-VDET+24

0.7V -VDET<1.6V

5.25V < VDD 6.0V -VDET-11

Detector Threshold

(Ta=25°C)

-VDET

1.0V

VDD

5.25V

×0.99

×1.01

1.6V

-VDET

5.0V

-VDET

×0.9925

-VDET

×1.016

5.25V < VDD 6.0V

1.0V

VDD

5.25V

-VDET+30

-VDET+39

-VDET-30

-VDET-26

0.7V -VDET<1.6V

5.25V < VDD 6.0V

Detector Threshold

(-40°C Ta 105°C)

-V^DET

-VDET

1.0V

VDD

5.25V

×0.98

×1.02

1.6V

-VDET

5.0V

-V^DET

×0.9825

-V^DET

×1.026

5.25V < VDD 6.0V

Detector Threshold

Hysteresis

-VDET

×0.07

VHYS

ISS

VDD=1.0V to 6.0V

×0.04

VSENSE=-VDET-0.1V

VSENSE=-VDET×1.1

-VDET < 1.5V

0.31

0.29

1.47

1.25

Supply Current*¹

µA

1.5V -VDET < 4.7V

RSENSE Sense Resistor

MΩ

4.7V

-VDET

0.50

0.55

Ta=25°C

Minimum Operating

VDDL

Voltage*²

-40°C Ta 105°C

V^DD=0.6V, VDS=0.05V

µA

VDD=0.6V

VDS=0.5V

-VDET < 1.1V

0.020

VDD=1.0V

VDS=0.5V

VDD=1.5V

VDS=0.5V

VDD=3.0V

VDS=0.5V

VDD=4.5V

VDS=2.1V

1.1V -VDET < 1.6V

1.6V -VDET < 3.1V

3.1V

-V^DET< 4.0V

4.0V

0.400

1.000

2.400

0.650

0.900

Nch

Output Current

IOUT

(Driver Output Pin)

-VDET

Pch*³

VDD=6.0V

VDS=2.1V

-VDET

Nch Driver Leakage

ILEAK

VDD=6.0V, VDS=7.0V

V^DD=5V

140

Current*⁴

-VDET < 1.5V

Detector Output Delay

tPHL

µs

Time*⁵

1.5V

-VDET

-VDET < 4.5V

Release Output Delay

tPLH

V^DD=5V

µs

Time*⁵

4.5V

-VDET

R3117Nxx1

NO.EC-186-170530

All of unit are tested and specified under load conditions such that Tj≈Ta=25°C except for Detector Output Delay Time and

Release Output Delay Time.

*¹Consumption current through SENSE pin is not included.

*²In case that the VDD pin and SENSE pin are connected and the value shows the minimum supply voltage (VDD) when the

output voltage at detector threshold can be maintained as 0.1V or less. (In case of Nch open drain type, pull-up resistor

is 470kΩ and pull-up voltage is set at 5V for testing.) If VDD is high enough, down to 0V is acceptable for SENSE pin.

*³In case of CMOS type

*⁴In case of Nch Open Drain type

*⁵In the case of CMOS output type:

Time interval from forcing pulsive 6.0V to -VDET-2.0V or 0V, or from forcing 0V to -VDET+2.0V or 6.0V to SENSE pin, to

when the output voltage will reach VDD/2.

In the case of Nch Open drain output type:

Output pin is pulled up to 5V with 470kΩ and time interval from forcing 6.0V to -VDET-2.0V or 0V, or forcing pulsive 0V to

-VDET+2.0V or 6.0V to when the output voltage reaches up to 2.5V.

R3117Nxx1

NO.EC-186-170530

ELECTRICAL CHARACTERISTICS BY DETECTOR THRESHOLD

• R3117N071A/C to R3117N501A/C

Bold values are checked and guaranteed by design engineering at −40°C

105°C, unless otherwise noted.

(Ta=25°C)

Detector Threshold Detector Threshold Detector Threshold Detector Threshold Detector Threshold

1.0V

VDD

5.25V 1.0V

VDD

5.25V 5.25V < VDD

6.0V 5.25V < VDD

6.0V

Hysteresis

Part

Number

-VDET [V]

VHYS [V]

Min.

Max.

Min.

Max.

Min.

Max.

Min.

Max.

Min.

Max.

0.6850

0.7850

0.8850

0.9850

1.0850

1.1850

1.2850

1.3850

1.4850

1.5840

1.6830

1.7820

1.8810

1.9800

2.0790

2.1780

2.2770

2.3760

2.4750

2.5740

2.6730

2.7720

2.8710

2.9700

3.0690

3.1680

3.2670

3.3660

3.4650

3.5640

3.6630

3.7620

3.8610

3.9600

4.0590

4.1580

4.2570

4.3560

4.4550

4.5540

4.6530

4.7520

4.8510

4.9500

0.7150

0.8150

0.9150

1.0150

1.1150

1.2150

1.3150

1.4150

1.5150

1.6160

1.7170

1.8180

1.9190

2.0200

2.1210

2.2220

2.3230

2.4240

2.5250

2.6260

2.7270

2.8280

2.9290

3.0300

3.1310

3.2320

3.3330

3.4340

3.5350

3.6360

3.7370

3.8380

3.9390

4.0400

4.1410

4.2420

4.3430

4.4440

4.5450

4.6460

4.7470

4.8480

4.9490

5.0500

0.6700

0.7700

0.8700

0.9700

1.0700

1.1700

1.2700

1.3700

1.4700

1.5680

1.6660

1.7640

1.8620

1.9600

2.0580

2.1560

2.2540

2.3520

2.4500

2.5480

2.6460

2.7440

2.8420

2.9400

3.0380

3.1360

3.2340

3.3320

3.4300

3.5280

3.6260

3.7240

3.8220

3.9200

4.0180

4.1160

4.2140

4.3120

4.4100

4.5080

4.6060

4.7040

4.8020

4.9000

0.7300

0.8300

0.9300

1.0300

1.1300

1.2300

1.3300

1.4300

1.5300

1.6320

1.7340

1.8360

1.9380

2.0400

2.1420

2.2440

2.3460

2.4480

2.5500

2.6520

2.7540

2.8560

2.9580

3.0600

3.1620

3.2640

3.3660

3.4680

3.5700

3.6720

3.7740

3.8760

3.9780

4.0800

4.1820

4.2840

4.3860

4.4880

4.5900

4.6920

4.7940

4.8960

4.9980

5.1000

0.6890

0.7890

0.8890

0.9890

1.0890

1.1890

1.2890

1.3890

1.4890

1.5880

1.6872

1.7865

1.8857

1.9850

2.0842

2.1835

2.2827

2.3820

2.4812

2.5805

2.6797

2.7790

2.8782

2.9775

3.0767

3.1760

3.2752

3.3745

3.4737

3.5730

3.6722

3.7715

3.8707

3.9700

4.0692

4.1685

4.2677

4.3670

4.4662

4.5655

4.6647

4.7640

4.8632

4.9625

0.7240

0.8240

0.9240

1.0240

1.1240

1.2240

1.3240

1.4240

1.5240

1.6256

1.7272

1.8288

1.9304

2.0320

2.1336

2.2352

2.3368

2.4384

2.5400

2.6416

2.7432

2.8448

2.9464

3.0480

3.1496

3.2512

3.3528

3.4544

3.5560

3.6576

3.7592

3.8608

3.9624

4.0640

4.1656

4.2672

4.3688

4.4704

4.5720

4.6736

4.7752

4.8768

4.9784

5.0800

0.6740

0.7740

0.8740

0.9740

1.0740

1.1740

1.2740

1.3740

1.4740

1.5720

1.6702

1.7685

1.8667

1.9650

2.0632

2.1615

2.2597

2.3580

2.4562

2.5545

2.6527

2.7510

2.8492

2.9475

3.0457

3.1440

3.2422

3.3405

3.4387

3.5370

3.6352

3.7335

3.8317

3.9300

4.0282

4.1265

4.2247

4.3230

4.4212

4.5195

4.6177

4.7160

4.8142

4.9125

0.7390

0.8390

0.9390

1.0390

1.1390

1.2390

1.3390

1.4390

1.5390

1.6416

1.7442

1.8468

1.9494

2.0520

2.1546

2.2572

2.3598

2.4624

2.5650

2.6676

2.7702

2.8728

2.9754

3.0780

3.1806

3.2832

3.3858

3.4884

3.5910

3.6936

3.7962

3.8988

4.0014

4.1040

4.2066

4.3092

4.4118

4.5144

4.6170

4.7196

4.8222

4.9248

5.0274

5.1300

0.028

0.032

0.036

0.040

0.044

0.048

0.052

0.056

0.060

0.064

0.068

0.072

0.076

0.080

0.084

0.088

0.092

0.096

0.100

0.104

0.108

0.112

0.116

0.120

0.124

0.128

0.132

0.136

0.140

0.144

0.148

0.152

0.156

0.160

0.164

0.168

0.172

0.176

0.180

0.184

0.188

0.192

0.196

0.200

0.049

0.056

0.063

0.070

0.077

0.084

0.091

0.098

0.105

0.112

0.119

0.126

0.133

0.140

0.147

0.154

0.161

0.168

0.175

0.182

0.189

0.196

0.203

0.210

0.217

0.224

0.231

0.238

0.245

0.252

0.259

0.266

0.273

0.280

0.287

0.294

0.301

0.308

0.315

0.322

0.329

0.336

0.343

0.350

R3117N071A/C

R3117N081A/C

R3117N091A/C

R3117N101A/C

R3117N111A/C

R3117N121A/C

R3117N131A/C

R3117N141A/C

R3117N151A/C

R3117N161A/C

R3117N171A/C

R3117N181A/C

R3117N191A/C

R3117N201A/C

R3117N211A/C

R3117N221A/C

R3117N231A/C

R3117N241A/C

R3117N251A/C

R3117N261A/C

R3117N271A/C

R3117N281A/C

R3117N291A/C

R3117N301A/C

R3117N311A/C

R3117N321A/C

R3117N331A/C

R3117N341A/C

R3117N351A/C

R3117N361A/C

R3117N371A/C

R3117N381A/C

R3117N391A/C

R3117N401A/C

R3117N411A/C

R3117N421A/C

R3117N431A/C

R3117N441A/C

R3117N451A/C

R3117N461A/C

R3117N471A/C

R3117N481A/C

R3117N491A/C

R3117N501A/C

R3117Nxx1

NO.EC-186-170530

(Ta=25°C)

Nch Driver Output

Current 1

Detector Output

Delay Time

Release Output

Delay Time

Nch Driver Output

Current2

Pch Driver Output

Current

Sense Resistor

RSENSE [MΩ]

IOUT1 [µA]

IOUT2 [mA]

IOUT3 [mA]

tPHL [µs]

tPLH [µs]

Cond.

Min.

Cond.

Min.

Cond.

Min.

Typ.

Cond.

Typ.

Cond.

Typ.

VDD=

0.6V

0.020

V^DS=

0.5V

VDD=

5.0V

V^SENSE=

6.0V

↓

VDD=

1.0V

0.400

V^DS=

0.5V

∗Note)

V^DD=

5.0V

VDD=

4.5V

V^SENSE=

VDD=

0.650

1.5V

V^DS=

2.1V

↓

1.000

V^DS=

0.5V

-VDET

+2.0V

V^DD=

0.6V

∗Note)

V^DS=

0.05V

VDD=

5.0V

V^SENSE=

6.0V

↓

-V^DET

-2.0V

VDD=

3.0V

∗Note)

2.400

V^DS=

0.5V

VDD=

5.0V

VDD=

V^SENSE=

6.0V

0.900

V^DS=

2.1V

↓

6.0V

∗Note)

Note 1. In the case of CMOS output type:

Time interval from forcing pulsive 6.0V to -VDET-2.0V or 0V, or from forcing 0V to -VDET+2.0V or 6.0V to

SENSE pin, to when the output voltage will reach VDD/2.

2. In the case of Nch Open drain output type:

Output pin is pulled up to 5V with 470kΩ and time interval from forcing 6.0V to -VDET-2.0V or 0V, or forcing

pulsive 0V to -VDET+2.0V or 6.0V to when the output voltage reaches up to 2.5V.

R3117Nxx1

NO.EC-186-170530

TYPICAL APPLICATION

• R3117Nxx1A CPU Reset Circuit (Nch Open Drain Output)

(1) Input Voltage to R3117Nxx1A is equal to Input Voltage to CPU

VDD

470kΩ

VDD

CPU

RESET

GND

R3117xxxxA

OUT

SENSE

GND

(2) Input Voltage to R3117Nxx1A is unequal to Input Voltage to CPU

VDD1

VDD2

470kΩ

VDD

CPU

RESET

GND

R3117xxxxA

OUT

SENSE

GND

• R3117Nxx1C CPU Reset Circuit (CMOS Output)

VDD

CPU

RESET

GND

R3117xxxxC

OUT

SENSE

GND

R3117Nxx1

NO.EC-186-170530

TECHNICAL NOTES

When connecting resistors to the device’s input pin

When connecting a resistor (R1) to an input of this device, the input voltage decreases by [Device’s

Consumption Current] x [Resistance Value] only. And, the cross conduction current*¹, which occurs when

changing from the detecting state to the release state, is decreased the input voltage by [Cross Conduction

Current] x [Resistance Value] only. And then, this device will enter the re-detecting state if the input voltage

reduction is larger than the difference between the detector voltage and the released voltage.

When the input resistance value is large and the VDD is gone up at mildly in the vicinity of the released voltage,

repeating the above operation may result in the occurrence of output.

As shown in Figure A/B, set R1 to become 100kΩ or less as a guide, and connect C_INof 0.1μF and more to

between the input pin and GND. Besides, make evaluations including temperature properties under the actual

usage condition, with using the evaluation board like this way. As result, make sure that the cross conduction

current has no problem.

V_DD

Voltage

Detector

V_DD

Voltage

Detector

C_IN

OUT pin

GND

Figure A

GND

Figure B

*¹In the CMOS output type, a charging current for OUT pin is included.

*²Note the bias dependence of capacitors.

R3117Nxx1

NO.EC-186-170530

TIMING CHART

Supply Voltage

(VDD

)

Minimum Operating

Voltage

VDDL

Detector Threshold

Hysteresis

Detector Threshold

Hysteresis

Released Voltage

+V^DET

Detector Threshold VDET

SENSE Pin Voltage

(VSENSE

)

GND

Pull-up Voltage

Supply Voltage

(VDD

)

Output Voltage

(VOUT

)

GND

tPHL

tPLH

tPHL

tPLH

R3117xxxxA

R3117xxxxC

If the SENSE pin voltage is raised 0.5V/ms or less, it may cause noise when the output voltage is switched

from low to high.

DEFINITION OF OUTPUT DELAY TIME

Output Delay Time (tPLH) is defined as follows:

1. In the case of Nch Open Drain Output:

Under the condition of the output pin (D^OUT) is pulled up through a resistor of 470kΩ to 5V, the time interval

between the rising edge of SENSE Pin pulse from 0V to (-V^DET)+2.0V or the time interval of 6.0V pulse voltage

is supplied, the becoming of the output voltage to 2.5V.

2. In the case of CMOS Output:

The time interval between the rising edge of SENSE Pin pulse from 0V to (-V^DET)+2.0V or the time interval of

6.0V pulse voltage is supplied, the becoming of the output voltage to V^DD/2.

Supply Voltage (VDD

)

Supply Voltage (VDD

Minimum Operating Voltage

-VDET+2.0V or 6.0V

SENSE Pin Voltage (VSENSE

)

Minimum Operating

Voltage

DDL

VDDL

-VDET+2.0V or 6.0V

SENSE Pin Voltage

)

(VSENSE

)

GND

5.0V

GND

5.0V

Output Voltage

DD/2

(VOUT

)

2.5V

GND

Output Voltage (VOUT

)

GND

tPHL

tPLH

tPHL

tPLH

Nch Open Drain Output

(R3117Nxx1A)

CMOS Output

(R3117Nxx1C)

R3117Nxx1

NO.EC-186-170530

OPERATION

• R3117Nxx1A

SENSE

VDD

Comparator

OUT pin should be pulled-up to

VDD or an external voltage level.

OUT

Vref

Nch

Tr.1

GND

Block Diagram (R3117Nxx1A)

Supply Voltage (VDD

)

Minimum Operating

Voltage

VDDL

Step

Released Voltage

DET

Comparator (−)

Pin Input Voltage

Detector Threshold

Hysteresis

Detector Threshold −VDET

Comparator Output

Tr.1

SENSE Pin Voltage

(VSENSE

)

OFF ON OFF

GND

Output Tr.

Nch OFF ON OFF

Rb+Rc

Ra+Rb+Rc

×VSENSE

Pull-up Voltage

Output

Delay Time

Ra+Rb

Detect Delay Time

Output Voltage

tPHL

tPLH

(VOUT

)

GND

Operation Diagram

• Explanation

Step 1. The output voltage is equal to the pull-up voltage.

Step 2. At Point "A", Vref VSENSE×(Rb+Rc)/(Ra+Rb+Rc) is true, as a result, the output of comparator is reversed

from "L" to "H", therefore the output voltage becomes the GND level. The voltage level of Point A means

a detector threshold voltage (-V^DET). (When the supply voltage is lower than the minimum operating

voltage, the operation of the output transistor becomes indefinite. The output voltage is equal to the GND

level.)

Step 3. At Point "B", Vref VSENSE×Rb/(Ra+Rb) is true, as a result, the output of comparator is reversed from "H"

to "L", then the output voltage is equal to the pull-up voltage. The voltage level of Point B means a

released voltage (+V^DET).

∗) The difference between a released voltage and a detector threshold voltage is a detector threshold hysteresis.

R3117Nxx1

NO.EC-186-170530

• R3117xxxxC

SENSE

VDD

Comparator

Pch

Nch

OUT

Vref

Tr.1

GND

Block Diagram (R3117Nxx1C)

Supply Voltage (V^DD

)

Minimum Operating

Voltage

DDL

Step

Comparator (−)

Pin Input Voltage

Released Voltage

Detector Threshold

VDET

Detector Threshold

Hysteresis

Comparator Output

Tr.1

−VDET

OFF ON OFF

ON OFF ON

SENSE Pin Voltage

Pch

(VSENSE

)

Output Tr.

GND

Nch OFF ON OFF

Rb+Rc

Ra+Rb+Rc

×VSENSE

Supply Voltage (VDD

)

Output

Delay Time

Ra+Rb

Detect Delay Time

tPHL

tPLH

Output Voltage

(VOUT

)

GND

Operation Diagram

• Explanation

Step 1. The output voltage is equal to the supply voltage (VDD).

Step 2. At Point "A", Vref VSENSE×(Rb+Rc)/(Ra+Rb+Rc) is true, as a result, the output of comparator is reversed

from "L" to "H", therefore the output voltage becomes the GND level. The voltage level of Point A means

a detector threshold voltage (-V^DET). (When the supply voltage is lower than the minimum operating

voltage, the operation of the output transistor becomes indefinite. The output voltage is equal to the GND

level.

Step 3. At Point "B", Vref VSENSE×Rb/(Ra+Rb) is true, as a result, the output of comparator is reversed from "H"

to "L", then the output voltage is equal to the supply voltage (V^DD). The voltage level of Point B means a

released voltage (+V^DET).

∗) The difference between a released voltage and a detector threshold voltage is a detector threshold hysteresis.

R3117Nxx1

NO.EC-186-170530

• Power Supply Injection Order

The R3117Nxx1A/C supervises the voltage of the SENSE pin. V_DDpin and SENSE pin can be used at the

same voltage level. Likewise, V_DDpin and SENSE pin can be used at the different voltage level. If the V_DDpin

and SENSE pin are used at different voltage level, regarding the start-up sequence, force the voltage level to

V_DDpin prior to the SENSE pin.

If the SENSE pin voltage is equal or more than the released voltage (+V_DET), D_OUTpin becomes "H". Besides,

a voltage beyond V_DDpin is also acceptable to SENSE pin. Concerning the R3117Nxx1A (Nch open drain

output type), D_OUTpin must be pulled-up with an external resistor.

VDD

+VDET

VSENSE

VOUT

Fig. 1

Turn on sequence

• Outside Setting of Detector Threshold

When monitoring the voltage more than 5.0V or the different detector threshold with using lower threshold

device, divider resistors can be applied to the SENSE pin. In this usage, some error range will be generated to

the detector threshold voltage caused by the internal resistor R^SENSE(Refer to Fig.3) of the IC. Supposed that the

detector threshold voltage is described as Vs, the next equation will be true.

VS = -VDET × (Ra+Rb)/Rb.

However, actually an error includes by SENSE resistance (RSENSE) of the IC inside. (Refer to Fig. 4)

Ia = Ib + ISENSE

Ib = -VDET / Rb

...................................... (1)

...................................... (2)

Thus,

Ia = -VDET / Rb + ISENSE ...................................... (3)

Therefore,

VS = -VDET + Ia × Ra ...................................... (4)

Put Equation (3) into Equation (4), then

VS = -VDET × (Ra + Rb) / Rb + Ra × ISENSE

R3117Nxx1

NO.EC-186-170530

Ra × ISENSE is an error in VS.

Ra × ISENSE = Ra × (-VDET) / RSENSE

= -V^DET× Ra / RSENSE

The error range is -V^DET× Ra/RSENSE (Fig.3) and to make it small, choosing the low detector threshold voltage

type and set the resistance values Ra, Rb as R^SENSE>>Ra. Refer to the electrical characteristics table to see the

R^SENSEvalue.

VDD

-VDET

R3117x

SENSE

R3117x

OUT

SENSE

ISENSE

GND

Fig. 2

Fig. 3

• Accuracy Detector Threshold

If the VDD bias voltage is lager than 5.25V, and to keep the detector threshold accuracy level, or if the maximum

operating voltage line must be used as the V^DDbias voltage, the input voltage must be set low by using the divider

resistors which are shown in Fig.5.

-VDET

SENSE

R3117x

OUT

GND

Fig. 4

R3117Nxx1

NO.EC-186-170530

• Detector Operation vs. glitch input voltage to the SENSE pin

When the R3117Nxx1 is at released, if the pulse voltage which the detector threshold or lower voltage, the

graph below means that the relation between pulse width and the amplitude of the swing to keep the released

state for the R3117Nxx1.

Pulse Width

Sense Voltage (VSENSE

)

Detector Threshold (-VDET

)

Over Drive

V^SENSEInput Waveform

This graph shows the maximum pulse conditions to keep the released voltage. If the pulse with larger amplitude

or wider width than the above graph is applied to SENSE pin, the reset signal may be output.

R3117Nxx1

NO.EC-186-170530

PACKAGE INFORMATION

• Power Dissipation (SOT-23-5)

Power Dissipation (P_D) depends on conditions of mounting on board. This specification is based on the

measurement at the condition below:

(Power Dissipation (SOT-23-5) is substitution of SOT-23-6.)

* Measurement Conditions

Standard Test Land Pattern

Environment

Board Material

Board Dimensions

Copper Ratio

Mounting on Board (Wind velocity=0m/s)

Glass cloth epoxy plastic (Double sided)

40mm x 40mm x1.6mm

Top side: Approx. 50%, Back side: Approx. 50%

φ 0.5mm x 44pcs

Through-holes

* Measurement Result

(Ta=25°C, Tjmax=125°C)

Standard Land Pattern

420mW

Free Air

250mW

400°C/W

Power Dissipation

Thermal Resistance

θja = (125-25°C)/0.42W= 238°C/W

600

500

420

400

On Board

Free Air

300

250

200

100

105

125

150

Ambient Temperature (°C)

Power Dissipation

R3117Nxx1

NO.EC-186-170530

Package Dimensions (SOT-23-5)

2.9±0.2

1.9±0.2

1.1±0.1

0.8±0.1

(0.95) (0.95)

0～0.1

+0.1

0.15-0.05

0.4±0.1

Unit : mm

SOT-23-5 Package Dimensions

Mark Specification (SOT-23-5)

: Product Code … Refer to “Mark Specification Table”

: Lot Number … Alphanumeric Serial Number



SOT-23-5 Mark Specifications

R3117Nxx1

NO.EC-186-170530

R3117N Mark Specification Table (SOT-23-5)

R3117Nxx1A

R3117Nxx1C

Product Name

V_SET

Product Name

V_SET

  

R3117N071A

R3117N081A

R3117N091A

R3117N101A

R3117N111A

R3117N121A

R3117N131A

R3117N141A

R3117N151A

R3117N161A

R3117N171A

R3117N181A

R3117N191A

R3117N201A

R3117N211A

R3117N221A

R3117N231A

R3117N241A

R3117N251A

R3117N261A

R3117N271A

R3117N281A

R3117N291A

R3117N301A

R3117N311A

R3117N321A

R3117N331A

R3117N341A

R3117N351A

R3117N361A

R3117N371A

R3117N381A

R3117N391A

R3117N401A

R3117N411A

R3117N421A

R3117N431A

R3117N441A

R3117N451A

R3117N461A

R3117N471A

R3117N481A

R3117N491A

R3117N501A

M 0 A

M 0 B

M 0 C

M 0 D

M 0 E

M 0 F

M 0 G

M 0 H

M 0 J

M 0 K

M 0 L

M 0 M

M 0 N

M 0 P

M 0 Q

M 0 R

M 0 S

M 0 T

M 0 U

M 0 V

M 0 W

M 0 X

M 0 Y

M 0 Z

N 0 A

N 0 B

N 0 C

N 0 D

N 0 E

N 0 F

N 0 G

N 0 H

N 0 J

N 0 K

N 0 L

N 0 M

N 0 N

N 0 P

N 0 Q

N 0 R

N 0 S

N 0 T

N 0 U

N 0 V

0.7V

0.8V

0.9V

1.0V

1.1V

1.2V

1.3V

1.4V

1.5V

1.6V

1.7V

1.8V

1.9V

2.0V

2.1V

2.2V

2.3V

2.4V

2.5V

2.6V

2.7V

2.8V

2.9V

3.0V

3.1V

3.2V

3.3V

3.4V

3.5V

3.6V

3.7V

3.8V

3.9V

4.0V

4.1V

4.2V

4.3V

4.4V

4.5V

4.6V

4.7V

4.8V

4.9V

5.0V

R3117N071C

R3117N081C

R3117N091C

R3117N101C

R3117N111C

R3117N121C

R3117N131C

R3117N141C

R3117N151C

R3117N161C

R3117N171C

R3117N181C

R3117N191C

R3117N201C

R3117N211C

R3117N221C

R3117N231C

R3117N241C

R3117N251C

R3117N261C

R3117N271C

R3117N281C

R3117N291C

R3117N301C

R3117N311C

R3117N321C

R3117N331C

R3117N341C

R3117N351C

R3117N361C

R3117N371C

R3117N381C

R3117N391C

R3117N401C

R3117N411C

R3117N421C

R3117N431C

R3117N441C

R3117N451C

R3117N461C

R3117N471C

R3117N481C

R3117N491C

R3117N501C

M 1 A

M 1 B

M 1 C

M 1 D

M 1 E

M 1 F

M 1 G

M 1 H

M 1 J

M 1 K

M 1 L

M 1 M

M 1 N

M 1 P

M 1 Q

M 1 R

M 1 S

M 1 T

M 1 U

M 1 V

M 1 W

M 1 X

M 1 Y

M 1 Z

N 1 A

N 1 B

N 1 C

N 1 D

N 1 E

N 1 F

N 1 G

N 1 H

N 1 J

N 1 K

N 1 L

N 1 M

N 1 N

N 1 P

N 1 Q

N 1 R

N 1 S

N 1 T

N 1 U

N 1 V

0.7V

0.8V

0.9V

1.0V

1.1V

1.2V

1.3V

1.4V

1.5V

1.6V

1.7V

1.8V

1.9V

2.0V

2.1V

2.2V

2.3V

2.4V

2.5V

2.6V

2.7V

2.8V

2.9V

3.0V

3.1V

3.2V

3.3V

3.4V

3.5V

3.6V

3.7V

3.8V

3.9V

4.0V

4.1V

4.2V

4.3V

4.4V

4.5V

4.6V

4.7V

4.8V

4.9V

5.0V

R3117Nxx1

NO.EC-186-170530

TEST CIRCUITS

ISS

5V or VDD

470kΩ

R3117x

VOUT

VIN

OUT

SENSE

GND

Supply Current Test Circuit

Detector Threshold Test Circuit

(Pull-up circuit is not necessary for

CMOS Output type.)

VDD

VDS

VDD

IOUT

R3117x

VIN

VDD−

VDS

OUT

SENSE

VDS

GND

Nch Driver Output Current Test Circuit

Pch Driver Output Current Test Circuit

∗Apply to CMOS Output type only

R3117Nxx1

NO.EC-186-170530

TYPICAL CHARACTERISTICS

Note: Typical Characteristics are intended to be used as reference data; they are not guaranteed.

1) Supply Current vs. Supply Voltage

R3117xxxxA/C (at released)

R3117xxxxA/C (at detect)

2) Detector Threshold vs. Temperature

R3117x07xA/C

R3117x30xA/C

R3117x50xA/C

R3117Nxx1

NO.EC-186-170530

3) Detector Threshold vs. Supply Voltage

R3117x07xA/C

R3117x30xA/C

R3117x50xA/C

4) Hysteresis vs. Supply Voltage

R3117x07xA/C

R3117x30xA/C

R3117Nxx1

NO.EC-186-170530

R3117x50xA/C

5) Output Voltage vs. SENSE pin Input Voltage (Nch Open Drain Output type is pulled up to VDD.)

R3117x07xA/C R3117x30xA/C

R3117x50xA/C

R3117Nxx1

NO.EC-186-170530

6) Nch Driver Output Current vs. Supply Voltage

R3117xxxxA/C

7) Nch Driver Output Current vs. VDS

R3117xxxxA/C

8) Pch Driver Output Current vs. Supply Voltage 9) Pch Driver Output Current vs. VDS

R3117xxxxC R3117xxxxC

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 in this document are designed for automotive applications. However, when using the products for

automotive applications, please make sure to contact Ricoh sales representative in advance due to conﬁrming the

quality level.

6. We are making our continuous eﬀort 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, ﬁre containment 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. The X-ray exposure can inﬂuence functions and characteristics of the products. Conﬁrm the product functions and

characteristics in the evaluation stage.

9. WLCSP products should be used in light shielded environments. The light exposure can inﬂuence functions and

characteristics of the products under operation or storage.

10. There can be variation in the marking when diﬀerent AOI (Automated Optical Inspection) equipment is used.

In the case of recognizing the marking characteristic with AOI, please contact Ricoh sales or our distributor before

attempting to use AOI.

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

the technical information.

Ricoh is committed to reducing the environmental loading materials in electrical devices

with a view to contributing to the protection of human health and the environment.

Ricoh has been providing RoHS compliant products since April 1, 2006 and Halogen-free products since

Halogen Free

April 1, 2012.

http://www.e-devices.ricoh.co.jp/en/

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Phone: +81-3-5479-2857 Fax: +81-3-5479-0502

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