MITSMI PST3121, PST3122, PST3123, PST3124, PST3125 Datasheet

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MITSUMI

CMOS System Reset PST3XXX

CMOS System Reset

Monolithic IC PST3XXX Series

Outline

This IC is a system reset IC developed using the CMOS process. Super low consumption current of 0.25µA typ. has been achieved through use of the CMOS process. Also, detection voltage is high precision detection of ±2%.

Features

(1)

Super low consumption current

0.25µA typ. (when VDD = Vs + 1V)

(2)

High precision detection voltage

±2%

(3)

Hysteresis characteristic

5% typ.

(4)

Operating range

0.95 ~ 10V

(5)

Wide operating temperature range

-30 ~ +85°C

(6)

Detection voltage

2 ~ 6V (0.1V step)

Package

SC-82AB (PST31XX, PST32XX)

SOT-25 (PST33XX, PST34XX)

Applications

(1)Microcomputer, CPU, MPU reset circuits

(2)Logic circuit reset circuits

(3)Battery voltage check circuits

(4)Back-up circuit switching circuits

(5)Level detection circuits

Pin Assignment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

4

 

 

1

OUT

 

 

4

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

OUT

 

 

 

 

 

 

 

 

2

VDD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

VDD

 

 

 

 

 

 

 

 

3

VSS

 

 

 

 

 

 

 

 

1

 

2

 

3

 

 

 

 

1

2

 

 

3

NC

 

 

 

 

 

4

NC

 

 

 

 

 

 

 

 

 

 

 

 

 

4

VSS

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SC-82AB

SOT-25

MITSMI PST3121, PST3122, PST3123, PST3124, PST3125 Datasheet

MITSUMI

CMOS System Reset PST3XXX

Equivalent Circuit Diagram

PST31XX

PST32XX

PST33XX

PST34XX

MITSUMI CMOS System Reset PST3XXX

Absolute Maximum Ratings (Ta=25°C)

Item

Symbol

Rating

Unit

Storage temperature

TSTG

-40~+125

°C

Operating temperature

TOPR

-30~+85

°C

Power supply voltage

VDDmax.

+12

V

Allowable loss

Pd

150

mW

 

 

 

 

Electrical Characteristics

(1) Detection Voltage Table

Ta=25°C

 

 

 

 

 

 

 

 

 

 

 

Detection voltage

 

SOT-25

 

SC-82

CMOS output

N-ch open drain

CMOS output

 

N-ch open drain

 

 

2.0V±2%

 

PST3120

PST3220

PST3320

 

PST3420

2.1V±2%

 

PST3121

PST3221

PST3321

 

PST3421

2.2V±2%

 

PST3122

PST3222

PST3322

 

PST3422

2.3V±2%

 

PST3123

PST3223

PST3323

 

PST3423

2.4V±2%

 

PST3124

PST3224

PST3324

 

PST3424

2.5V±2%

 

PST3125

PST3225

PST3325

 

PST3425

2.6V±2%

 

PST3126

PST3226

PST3326

 

PST3426

2.7V±2%

 

PST3127

PST3227

PST3327

 

PST3427

2.8V±2%

 

PST3128

PST3228

PST3328

 

PST3428

2.9V±2%

 

PST3129

PST3229

PST3329

 

PST3429

3.0V±2%

 

PST3130

PST3230

PST3330

 

PST3430

3.1V±2%

 

PST3131

PST3231

PST3331

 

PST3431

3.2V±2%

 

PST3132

PST3232

PST3332

 

PST3432

3.3V±2%

 

PST3133

PST3233

PST3333

 

PST3433

3.4V±2%

 

PST3134

PST3234

PST3334

 

PST3434

3.5V±2%

 

PST3135

PST3235

PST3335

 

PST3435

3.6V±2%

 

PST3136

PST3236

PST3336

 

PST3436

3.7V±2%

 

PST3137

PST3237

PST3337

 

PST3437

3.8V±2%

 

PST3138

PST3238

PST3338

 

PST3438

3.9V±2%

 

PST3139

PST3239

PST3339

 

PST3439

4.0V±2%

 

PST3140

PST3240

PST3340

 

PST3440

4.1V±2%

 

PST3141

PST3241

PST3341

 

PST3441

4.2V±2%

 

PST3142

PST3242

PST3342

 

PST3442

4.3V±2%

 

PST3143

PST3243

PST3343

 

PST3443

4.4V±2%

 

PST3144

PST3244

PST3344

 

PST3444

4.5V±2%

 

PST3145

PST3245

PST3345

 

PST3445

4.6V±2%

 

PST3146

PST3246

PST3346

 

PST3446

4.7V±2%

 

PST3147

PST3247

PST3347

 

PST3447

4.8V±2%

 

PST3148

PST3248

PST3348

 

PST3448

4.9V±2%

 

PST3149

PST3249

PST3349

 

PST3449

5.0V±2%

 

PST3150

PST3250

PST3350

 

PST3450

5.1V±2%

 

PST3151

PST3251

PST3351

 

PST3451

5.2V±2%

 

PST3152

PST3252

PST3352

 

PST3452

5.3V±2%

 

PST3153

PST3253

PST3353

 

PST3453

5.4V±2%

 

PST3154

PST3254

PST3354

 

PST3454

5.5V±2%

 

PST3155

PST3255

PST3355

 

PST3455

5.6V±2%

 

PST3156

PST3256

PST3356

 

PST3456

5.7V±2%

 

PST3157

PST3257

PST3357

 

PST3457

5.8V±2%

 

PST3158

PST3258

PST3358

 

PST3458

5.9V±2%

 

PST3159

PST3259

PST3359

 

PST3459

6.0V±2%

 

PST3160

PST3260

PST3360

 

PST3460

Detection voltage measurement conditions: VDD = 9V 0V, measurement circuit 1

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