Datasheet

ManualsBrandsROHM SEMICONDUCTOR ManualsPMICsPMIC - system monitor Reset/power-on reset VSOF 5

1/9

www.rohm.com

2009.06 - Rev.B

Voltage Detector IC Series

Free Delay Time Setting

CMOS Voltage Detector IC Series

BD52□□G, BD52□□FVE, BD53□□G, BD53□□FVE series

 Description

ROHM’s BD52G/FVE and BD53G/FVE series are highly accurate, low current consumption reset IC series with a

built-in delay circuit. The lineup was established with tow output types (Nch open drain and CMOS output) and detection

voltages range from 2.3V to 6.0V in increments of 0.1V, so that the series may be selected according the application at

hand.

 Features

1) Detection voltage: 2.3V to 6.0V (Typ.), 0.1V steps

2) High accuracy detection voltage: ±1.0%

3) Ultra-low current consumption: 0.8µA (Typ.)

4) Nch open drain output (BD52G/FVE), CMOS output (BD53G/FVE)

5) Compact packages VSOF5: BD52FVE, BD53FVE

SSOP5: BD52G, BD53G

 Applications

All electronic devices that use micro controllers and logic circuits

 Selection Guide

 Lineup

Marking

Detection

Voltage

Part

Number

Marking

Detection

Voltage

Part

Number

Marking

Detection

Voltage

Part

Number

Marking

Detection

Voltage

Part

Number

PW 6.0V BD5260 PB 4.1V BD5241 RW 6.0V BD5360 RB 4.1V BD5341

PV 5.9V BD5259 PA 4.0V BD5240 RV 5.9V BD5359 RA 4.0V BD5340

PU 5.8V BD5258 MV 3.9V BD5239 RU 5.8V BD5358 QV 3.9V BD5339

PT 5.7V BD5257 MU 3.8V BD5238 RT 5.7V BD5357 QU 3.8V BD5338

PS 5.6V BD5256 MT 3.7V BD5237 RS 5.6V BD5356 QT 3.7V BD5337

PR 5.5V BD5255 MS 3.6V BD5236 RR 5.5V BD5355 QS 3.6V BD5336

PQ 5.4V BD5254 MR 3.5V BD5235 RQ 5.4V BD5354 QR 3.5V BD5335

PP 5.3V BD5253 MQ 3.4V BD5234 RP 5.3V BD5353 QQ 3.4V BD5334

PN 5.2V BD5252 MP 3.3V BD5233 RN 5.2V BD5352 QP 3.3V BD5333

PM 5.1V BD5251 MN 3.2V BD5232 RM 5.1V BD5351 QN 3.2V BD5332

PL 5.0V BD5250 MM 3.1V BD5231 RL 5.0V BD5350 QM 3.1V BD5331

PK 4.9V BD5249 ML 3.0V BD5230 RK 4.9V BD5349 QL 3.0V BD5330

PJ 4.8V BD5248 MK 2.9V BD5229 RJ 4.8V BD5348 QK 2.9V BD5329

PH 4.7V BD5247 MJ 2.8V BD5228 RH 4.7V BD5347 QJ 2.8V BD5328

PG 4.6V BD5246 MH 2.7V BD5227 RG 4.6V BD5346 QH 2.7V BD5327

PF 4.5V BD5245 MG 2.6V BD5226 RF 4.5V BD5345 QG 2.6V BD5326

PE 4.4V BD5244 MF 2.5V BD5225 RE 4.4V BD5344 QF 2.5V BD5325

PD 4.3V BD5243 ME 2.4V BD5224 RD 4.3V BD5343 QE 2.4V BD5324

PC 4.2V BD5242 MD 2.3V BD5223 RC 4.2V BD5342 QD 2.3V BD5323

No. Specifications Description

Output Circuit Format 2:Open Drain Output, 3:CMOS Output

Detection Voltage

Example: Displays VS over a 2.3V to 6.0V range in

0.1V increments.

Package G:SSOP5 / FVE:VSOF5

No.09006EBT03

Part Number : BD5

2 3

Summary of content (10 pages)

PAGE 1
Voltage Detector IC Series Free Delay Time Setting CMOS Voltage Detector IC Series No.09006EBT03 BD52□□G, BD52□□FVE, BD53□□G, BD53□□FVE series  Description ROHM’s BD52□□G/FVE and BD53□□G/FVE series are highly accurate, low current consumption reset IC series with a built-in delay circuit. The lineup was established with tow output types (Nch open drain and CMOS output) and detection voltages range from 2.3V to 6.0V in increments of 0.
PAGE 2
Technical Note BD52□□G, BD52□□FVE, BD53□□G, BD53□□FVE series  Absolute maximum ratings (Ta=25°C) Parameter Power Supply Voltage Nch Open Drain Output Output Voltage CMOS Output *1*3 SSOP5 Power *2*3 Dissipation VSOF5 Operating Temperature Ambient Storage Temperature Symbol VDD-GND Limits -0.3 ~ +10 GND-0.3 ~ +10 GND-0.3 ~ VDD+0.3 540 210 -40 ~ +105 -55 ~ +125 VOUT Pd Topr Tstg Unit V V mW °C °C *1 Use above Ta=25°C results in a 5.4mW loss per degree. *2 Use above Ta=25°C results in a 2.
PAGE 3
Technical Note BD52□□G, BD52□□FVE, BD53□□G, BD53□□FVE series  Block Diagrams BD52□□G/FVE BD53□□G/FVE VDD VDD VOUT VOUT Vref Vref CT GND CT GND Fig.1 Fig.2 TOP VIEW TOP VIEW SSOP5 VSOF5 PIN No. Symbol Function PIN No. Symbol Function 1 VOUT Reset Output 1 VOUT Reset Output 2 VDD Power Supply Voltage 2 SUB 3 GND GND 4 N.C.
PAGE 4
Technical Note BD52□□G, BD52□□FVE, BD53□□G, BD53□□FVE series "LOW" OUTPUT CURRENT ： IOL [mA] 【BD5242G/FVE】 1.5 1.0 0.5 0.0 0 1 2 3 4 5 6 7 8 9 10 18 【BD5242G/FVE】 15 12 9 6 3 1.0 1.5 2.0 6 5 4 Ta=25℃ 2 1 30 25 20 VDD =8.0V 15 VDD =6.0V 10 5 VDD =4.8V 0 0 Ta=25℃ 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 2 3 4 5 6 Fig.5 “High” Output Current 450 【BD5242G/FVE】 0.8 0.6 0.4 0.2 0.0 0.
PAGE 5
Technical Note BD52□□G, BD52□□FVE, BD53□□G, BD53□□FVE series  Setting of Detector Delay Time This detector IC can be set delay time at the rise of VDD by the capacitor connected to CT terminal. Delay time at the rise of VDD TPLH：Time until when Vout rise to 1/2 of VDD after VDD rise up and beyond the release voltage(VDET+∆VDET) VDD-VCTH TPLH = -CCT×RCT×ln VDD CCT: VCTH: CT pin Externally Attached Capacitance CT pin Threshold Voltage（P.2 VCTH refer.） RCT : CT pin Internal Impedance （P.2 RCT refer.
PAGE 6
Technical Note BD52□□G, BD52□□FVE, BD53□□G, BD53□□FVE series  Circuit Applications 1) Examples of a common power supply detection reset circuit VDD1 VDD2 RL BD52□□□ Application examples of BD52□□G/FVE series (Open Drain output type) and BD53□□G/FVE series (CMOS output type) are shown below. Microcontroller CT CL （Noise-filtering Capacitor）） GND Fig.18 Open Collector Output Type CASE1: the power supply of the microcontroller (VDD2) differs from the power supply of the reset detection (VDD1).
PAGE 7
Technical Note BD52□□G, BD52□□FVE, BD53□□G, BD53□□FVE series 3) Examples of the power supply with resistor dividers In applications where the power supply input terminal (VDD) of an IC with resistor dividers, it is possible that a through current will momentarily flow into the circuit when the output logic switches, resulting in malfunctions (such as output oscillatory state).
PAGE 8
BD52□□G, BD52□□FVE, BD53□□G, BD53□□FVE series Technical Note  Operation Notes 1 . Absolute maximum range Absolute Maximum Ratings are those values beyond which the life of a device may be destroyed. We cannot be defined the failure mode, such as short mode or open mode. Therefore a physical security countermeasure, like fuse, is to be given when a specific mode to be beyond absolute maximum ratings is considered. 2 . GND potential GND terminal should be a lowest voltage potential every state.
PAGE 9
Technical Note BD52□□G, BD52□□FVE, BD53□□G, BD53□□FVE series  Part Number Selection B D 5 2 2 BD52: Adjustable Delay Time 3 － G T R Reset Voltage Value Package Taping Specifications CMOS Reset IC 23: 2.3V to (0.1V step) G: SSOP5 Embossed Taping Open Drain Type 60: 6.0V FVE: VSOF5 BD53: Adjustable Delay Time CMOS Reset IC CMOS Output Type SSOP5 5 4 1 2 0.2Min. +0.2 1.6 −0.1 2.8±0.2 +6° 4° −4° 2.9±0.
PAGE 10
Notice Notes No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request.