BU4819 Datasheet PDF - ROHM

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BU4819
ROHM

Part Number BU4819
Description Low Voltage Standard CMOS Voltage Detector IC Series
Page 9 Pages


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Voltage Detector IC Series
Low Voltage Standard
CMOS Voltage Detector IC Series
BU48□□G, BU48□□F, BU48□□FVE, BU49□□G, BU49□□F, BU49□□FVE series
No.09006ECT01
Description
ROHM standard CMOS reset IC series is a high-accuracy low current consumption reset IC series.
The lineup was est ablished with t wo o utput ty pes (Nch open dra in an d CMOS output) and detection volt age ran ge 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 (BU48□□G/F/FVE)and CMOS output (BU49□□G/F/FVE)
5) Small surface package
SSOP5: BU48□□GBU49□□G
SOP4:
BU48□□FBU49□□F
VSOF5:
BU48□□FVEBU49□□FVE
Applications
All electronics devices that use microcontrollers and logic circuits.
Selection Guide
Part Number : BU4
12 3
No.
Specifications Descripti
on
1 Output Circuit Format 8:Open Drain Output, 9:CMOS Output
2 Detection Voltage
Example V DET: Represented as 0.1V step s in th e
range from 0.9V to 4.8V
3 Package
(Displayed as 0.9 in the case of 0.9V)
G:SSOP5(SMP5C2)/ F:SOP4/ FVE:VSOF5(EMP5)
Lineup
Detection
Making
voltage
JR 4.8V
JQ 4.7V
JP 4.6V
JN 4.5V
JM 4.4V
JL 4.3V
JK 4.2V
JJ 4.1V
JH 4.0V
JG 3.9V
JF 3.8V
JE 3.7V
JD 3.6V
JO 3.5V
JB 3.4V
JA 3.3V
HZ 3.2V
HY 3.1V
HX 3.0V
HW 2.9V
Part
Number
BU4848
BU4847
BU4846
BU4845
BU4844
BU4843
BU4842
BU4841
BU4840
BU4839
BU4838
BU4837
BU4836
BU4835
BU4834
BU4833
BU4832
BU4831
BU4830
BU4829
Detection
Making
voltage
HV 2.8V
HU 2.7V
HT 2.6V
HS 2.5V
HR 2.4V
HQ 2.3V
HP 2.2V
HN 2.1V
HM 2.0V
HL 1.9V
HK 1.8V
HJ 1.7V
HH 1.6V
HG 1.5V
HF 1.4V
HE 1.3V
HD 1.2V
HC 1.1V
HB 1.0V
HA 0.9V
Part
Number
Detection
Making
voltage
Part
Number
BU4828 LH
4.8V BU4948
BU4827
LG
4.7V
BU4947
BU4826
LF 4.6V
BU4946
BU4825
LE
4.5V
BU4945
BU4824 LD
4.4V BU4944
BU4823 LC
4.3V BU4943
BU4822
LB
4.2V
BU4942
BU4821
LA
4.1V
BU4941
BU4820 KZ
4.0V BU4940
BU4819
KY
3.9V
BU4939
BU4818
KX
3.8V
BU4938
BU4817 KW
3.7V
BU4937
BU4816
KV
3.6V
BU4936
BU4815
KU
3.5V
BU4935
BU4814 KT
3.4V BU4934
BU4813
KS
3.3V
BU4933
BU4812
KR
3.2V
BU4932
BU4811
KQ
3.1V
BU4931
BU4810
KP
3.0V
BU4930
BU4809
KN
2.9V
BU4929
Detection
Making
voltage
KM 2.8V
KL 2.7V
KK 2.6V
KJ 2.5V
KH 2.4V
KG 2.3V
KF 2.2V
KE 2.1V
KD 2.0V
KC 1.9V
KB 1.8V
KA 1.7V
JZ 1.6V
JY 1.5V
JX 1.4V
JW 1.3V
JV 1.2V
JU 1.1V
JT 1.0V
JS 0.9V
Part
Number
BU4928
BU4927
BU4926
BU4925
BU4924
BU4923
BU4922
BU4921
BU4920
BU4919
BU4918
BU4917
BU4916
BU4915
BU4914
BU4913
BU4912
BU4911
BU4910
BU4909
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© 2009 ROHM Co., Ltd. All rights reserved.
1/8
2009.06 - Rev .C http://www.Datasheet4U.com



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BU48□□G, BU48□□F, BU48□□FVE, BU49□□G, BU49□□F, BU49□□FVE series Technical Note
Absolute maximum ratings (Ta=25°C)
Parameter S
ymbol
Limits
Power Supply Voltage
VDD-GND
-0.3 ~ +7
Output Voltage
Power
Dissipation
Nch Open Drain Output
CMOS Output
VOUT
SSOP5
*1*4
SOP4
*2*4 400 Pd
VSOF5
*3*4 210
GND-0.3 ~ +7
GND-0.3 ~ VDD+0.3
540
Operating Temperature
Topr -40 ~ +125
Ambient Storage Temperature
Tstg -55 ~ +125
*1 W hen used at temperatures higher than Ta=25°C, the power is reduced by 5.4mW per 1°C above 25°C.
*2 W hen used at temperatures higher than Ta=25°C, the power is reduced by 4.0mW per 1°C above 25°C.
*3 W hen used at temperatures higher than Ta=25°C, the power is reduced by 2.1mW per 1°C above 25°C.
*4 When a ROHM standard circuit board (70mm×70mm×1.6mm, glass epoxy board)is mounted.
Unit
V
V
mW
°C
°C
Electrical characteristics
Parameter S
ymbol
Condition
Detection Voltage
VDET
VDD=HL , Ta=25°C
RL=470k
Detection Voltage
Temperature Coefficient
Hysteresis Voltage
VDET/T T a=-40°C~125°C *1 -
VDET
VDD=LHL
Ta=-40°C~125°C
RL=470k
*1 Designed Guarantee.(Outgoing inspection is not done on all products.)
*This product is not designed for protection against radioactive rays.
BU4848
BU4847
BU4846
BU4845
BU4844
BU4843
BU4842
BU4841
BU4840
BU4839
BU4838
BU4837
BU4836
BU4835
BU4834
BU4833
BU4832
BU4831
BU4830
BU4829
BU4828
BU4827
BU4826
BU4825
BU4824
BU4823
BU4822
BU4821
BU4820
BU4819
BU4818
BU4817
BU4816
BU4815
BU4814
BU4813
BU4812
BU4811
BU4810
BU4809
VDET1.0V
VDET1.1V
Min.
4.752
4.653
4.554
4.455
4.356
4.257
4.158
4.059
3.960
3.861
3.762
3.663
3.564
3.465
3.366
3.267
3.168
3.069
2.970
2.871
2.772
2.673
2.574
2.475
2.376
2.277
2.178
2.079
1.980
1.881
1.782
1.683
1.584
1.485
1.386
1.287
1.188
1.089
0.990
0.891
VDET
×0.03
VDET
×0.03
Limit
Typ. Max.
4.800 4.848
4.700 4.747
4.600 4.646
4.500 4.545
4.400 4.444
4.300 4.343
4.200 4.242
4.100 4.141
4.000 4.040
3.900 3.939
3.800 3.838
3.700 3.737
3.600 3.636
3.500 3.535
3.400 3.434
3.300 3.333
3.200 3.232
3.100 3.131
3.000 3.030
2.900 2.929
2.800 2.828
2.700 2.727
2.600 2.626
2.500 2.525
2.400 2.424
2.300 2.323
2.200 2.222
2.100 2.121
2.000 2.020
1.900 1.919
1.800 1.818
1.700 1.717
1.600 1.616
1.500 1.515
1.400 1.414
1.300 1.313
1.200 1.212
1.100 1.1 11
1.000 1.010
0.900 0.909
Unit
V
±30 - ppm/°C
VDET
×0.05
VDET
×0.05
VDET
×0.08
VDET
×0.07
V
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© 2009 ROHM Co., Ltd. All rights reserved.
2/8
2009.06 - Rev .C



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BU48□□G, BU48□□F, BU48□□FVE, BU49□□G, BU49□□F, BU49□□FVE series Technical Note
Electrical characteristics (Unless Otherwise Specified Ta=-25 to 125°C)
Parameter S
ymbol
Condition
VDET =0.9-1.3V -
VDET =1.4-2.1V -
Circuit Current when ON
IDD1 V DD=VDET-0.2V
VDET =2.2-2.7V -
VDET =2.8-3.3V
VDET =3.4-4.2V
VDET =4.3-4.8V
VDET =0.9-1.3V -
VDET =1.4-2.1V -
Circuit Current when OFF IDD2 V DD=VDET+2.0V
VDET =2.2-2.7V
VDET =2.8-3.3V
VDET =3.4-4.2V
Operating Voltage Range
VOPL
VDET =4.3-4.8V
VOL0.4V, Ta=25~125°C, RL=470k0.70
VOL0.4V, Ta=-40~25°C, RL=470k0.90
VDS=0.05V V DD=0.85V 20
‘Low’ Output Current (Nch) IOL VDS=0.5V V DD=1.5V V DET=1.7-4.8V 1.0
VDS=0.5V V DD=2.4V V DET=2.7-4.8V 4.0
‘High’ Output Current (Pch)
(only BU49□□G/F/FVE)
IOH
VDS=0.5V V DD=4.8V V DET=0.9-3.9V 1.7
VDS=0.5V V DD=6.0V V DET=4.0-4.8V 2.0
Output Leak Current when
OFF
(only BU48□□G/F/FVE)
Ileak
VDD=VDS=7V
Ta=-40°C~85°C
VDD=VDS=7V
Ta=85°C~125°C
* This product is not designed for protection against radioactive rays.
Min. T
-
-
-
-
-
-
-
Limit
yp.
0.15
0.20
0.25
0.30
0.35
0.40
0.30
0.35
0.40
0.45
0.50
0.55
-
-
100
3.3
7.2
3.4
4.0
-0
-0
Max.
0.88
1.05
1.23
1.40
1.58
1.75
1.40
1.58
1.75
1.93
2.10
2.28
-
-
-
-
-
-
-
0.1
1
Unit
µA
µA
V
µA
mA
mA
µA
Block Diagrams
BU48□□G/F/FVE
VDD
BU49□□G/F/FVE
VDD
Vref
VOUT
Vref
VOUT
GND
Fig.1
TOP VIEW
TOP VIEW
GND
Fig.2
TOP VIEW
SSOP5
PIN No. Symbol
1 VOUT
2 VDD
3 GND
4 N.C.
5 N.C.
Function
Reset output
Power supply voltage
GND
Unconnected terminal
Unconnected terminal
SOP4
PIN No. Symbol
1 VOUT
2 VDD
3 N.C.
4 GND
Function
Reset output
Power supply voltage
Unconnected terminal 3
GND
VSOF5
PIN No. Symbol
1 VOUT
2 SUB
N.C.
4 VDD
5 GND
Function
Reset output
Substrate*
Unconnected terminal
Power supply voltage
GND
*Connect the substrate to VDD
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© 2009 ROHM Co., Ltd. All rights reserved.
3/8
2009.06 - Rev .C



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BU48□□G, BU48□□F, BU48□□FVE, BU49□□G, BU49□□F, BU49□□FVE series Technical Note
Reference Data (Unless specified otherwise, Ta=25°C)
0.6
BU4816F
0.5
0.4
0.3
0.2
0.1
0.0
01
2 3 45
67
VDD SUPPLY VOLTAGE VDD [V]
Fig.3 Circuit Current
5
BU4816F
4
3
2 VDD=1.2V
1
0
0.0 0.5 1.0 1.5 2.0 2.5
DRAIN-SOURCE VOLTAGE VDS[V]
Fig.4 “LOW” Output Current
25
BU4916F
20 VDD=6.0V
15
VDD=4.8V
10
5
0
01
2 3 45
6
DRAIN-SOURCE VOLTAGE VDS[V]
Fig.5 “High” Output Current
7
BU4816F
6
5
4
3
2
1
0
01
2 3 45
67
VDD SUPPLY VOLTAGE VDD [V]
Fig.6 I/O Characteristics
0.5
BU4816F
0.4
0.3
0.2
0.1
0.0
-40
0 40 80 120
TEMPERATURE Ta[]
Fig.9 Circuit Current when ON
1.0
BU4816F
0.8
0.6
0.4
0.2
0.0
0.0 0.5 1.0 1.5 2.0 2.5
VDD SUPPLY VOLTAGE VDD [V]
Fig.7 Operating Limit Voltage
1.0
BU4816F
0.8
0.6
0.4
0.2
0.0
-40
0 40 80 120
TEMPERATURE Ta[]
Fig.10 Circuit Current when OFF
2.0
Low to high(VDET+ΔVDET)
1.5
High to low(VDET)
BU4816F
1.0
-40 0
40 80 120
TEMPERATURE Ta[]
Fig.8 Detecting Voltage
Release Voltage
1.0
BU4816F
0.8
0.6
0.4
0.2
0.0
-40
0 40 80 120
TEMPERATURE Ta[]
Fig.11 Operating Limit Voltage
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© 2009 ROHM Co., Ltd. All rights reserved.
4/8
2009.06 - Rev .C



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