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www.rohm.com
2009.06 - Rev.B
2009 ROHM Co., Ltd. All rights reserved.
Voltage Detector IC Series
Low Voltage Free Delay Time Setting
CMOS Voltage Detector IC Series
BU42
□□G, BU42□□F, BU42□□FVE, BU43□□G, BU43□□F, BU43□□FVE series
Description
ROHM CMOS reset IC series with adjustable output delay is a high-accuracy low current consumption reset IC series with
a built-in delay circuit. The lineup was established with two output types (Nch open drain and CMOS output) and detection
voltages range from 0.9V to 4.8V in increments of 0.1V, so that the series may be selected according to the application at
hand.
Features
1)
Detection voltage from 0.9V to 4.8V in 0.1V increments
2)
Highly accurate detection voltage: ±1.0%
3)
Ultra-low current consumption
4)
Nch open drain output (BU42
□□G/F/FVE)and CMOS output (BU43□□G/F/FVE)
5)
Small surface package
SSOP5: BU42
□□G,BU43□□G
SOP4: BU42
□□F,BU43□□F
VSOF5: BU42
□□FVE,BU43□□FVE
Applications
All electronics devices that use microcontrollers and logic circuits.
Selection Guide
Lineup
Makin
g
Detectio
n
voltage
Part
Number
Makin
g
Detectio
n
voltage
Part
Number
Makin
g
Detectio
n
voltage
Part
Number
Makin
g
Detectio
n
voltage
Part
Number
ZR
4.8V
BU4248
YV
2.8V
BU4228
1H
4.8V
BU4348
0M
2.8V
BU4328
ZQ
4.7V
BU4247
YU
2.7V
BU4227
1G
4.7V
BU4347
0L
2.7V
BU4327
ZP
4.6V
BU4246
YT
2.6V
BU4226
1F
4.6V
BU4346
0K
2.6V
BU4326
ZN
4.5V
BU4245
YS
2.5V
BU4225
1E
4.5V
BU4345
0J
2.5V
BU4325
ZM
4.4V
BU4244
YR
2.4V
BU4224
1D
4.4V
BU4344
0H
2.4V
BU4324
ZL
4.3V
BU4243
YQ
2.3V
BU4223
1C
4.3V
BU4343
0G
2.3V
BU4323
ZK
4.2V
BU4242
YP
2.2V
BU4222
1B
4.2V
BU4342
0F
2.2V
BU4322
ZJ
4.1V
BU4241
YN
2.1V
BU4221
1A
4.1V
BU4341
0E
2.1V
BU4321
ZH
4.0V
BU4240
YM
2.0V
BU4220
0Z
4.0V
BU4340
0D
2.0V
BU4320
ZG
3.9V
BU4239
YL
1.9V
BU4219
0Y
3.9V
BU4339
0C
1.9V
BU4319
ZF
3.8V
BU4238
YK
1.8V
BU4218
0X
3.8V
BU4338
0B
1.8V
BU4318
ZE
3.7V
BU4237
YJ
1.7V
BU4217
0W
3.7V
BU4337
0A
1.7V
BU4317
ZD
3.6V
BU4236
YH
1.6V
BU4216
0V
3.6V
BU4336
ZZ
1.6V
BU4316
ZC
3.5V
BU4235
YG
1.5V
BU4215
0U
3.5V
BU4335
ZY
1.5V
BU4315
ZB
3.4V
BU4234
YF
1.4V
BU4214
0T
3.4V
BU4334
ZX
1.4V
BU4314
ZA
3.3V
BU4233
YE
1.3V
BU4213
0S
3.3V
BU4333
ZW
1.3V
BU4313
YZ
3.2V
BU4232
YD
1.2V
BU4212
0R
3.2V
BU4332
ZV
1.2V
BU4312
YY
3.1V
BU4231
YC
1.1V
BU4211
0Q
3.1V
BU4331
ZU
1.1V
BU4311
YX
3.0V
BU4230
YB
1.0V
BU4210
0P
3.0V
BU4330
ZT
1.0V
BU4310
YW
2.9V
BU4229
YA
0.9V
BU4209
0N
2.9V
BU4329
ZS
0.9V
BU4309
No.
Specifications
Description
1
Output Circuit Format
2:Open Drain Output, 3:CMOS Output
2
Detection Voltage
Example VDET: Represented as 0.1V steps in the
range from 0.9V to 4.8V
(Displayed as 0.9 in the case of 0.9V)
3
Package
G:SSOP5(SMP5C2)/ F:SOP4/ FVE:VSOF5(EMP5)
No.09006EBT02
Part Number : BU4
1
2
3