BD45485 [ROHM]
VOLTAGE DETECTOR IC; 电压检测器IC
| 型号： | BD45485 |
| 厂家： | 
ROHM |
| 描述： | VOLTAGE DETECTOR IC |
| 文件： | 总4页 (文件大小：462K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
BD45XXXG
BD46XXXG
Voltage detectors
VOLTAGE DETECTOR IC
with counter timer
BD45XXXG
BD46XXXG
BD45XXXG and BD46XXXG are series of high-accuracy detection voltage and low current consumption
VOLTAGE DETECTOR ICs adopting CMOS process. New lineup of 156 types with delay time circuit
have developed. Delay time is fixed in the IC due to the built-in counter timer to require no external
capacitor. Total 156 types of VOLTAGE DETECTOR ICs including BD45XXXG series (Nch open drain
output) and BD46XXXG series (CMOS output), each of which has 26 kinds in every 0.1V step (2.3~4.8V)
and three kinds of delay time (50msec, 100msec, 200msec) have developed.
Applications
BD45XXXG
Every kind of appliances with microcontroller and logic circuit
BD46XXXG
5
4
1pin : External RESET
control
Features
2pin : Connect to
Sub, GND
1) Built-in delay time circuit
3pin : GND
4pin : VOUT
5pin : VDD
1
2
(Fixed delay time by the built-in ±10% of high-accuracy counter timer)
3
(UNIT:mm)
2) No external capacitor for setting delay time required
3) 3 kinds of delay time: 50msec(Typ.)(BD45XX5G,BD46XX5G)
100msec(Typ.)(BD45XX1G,BD46XX1G)
2.9
5
±
0.2
4
(
)
(
)
)
200msec(Typ.)(BD45XX2G,BD46XX2G)
4) Detection voltage: 2.3V ~ 4.8V 0.1V step
5) High-accuracy detection voltage: ±1.0%
6) Ultra low current consumption: 0.85µA typ.
7) Output circuit: Nch open drain(BD45XXXG)
CMOS(BD46XXXG)
(
)
(
)
(
3
1
2
+0.05
–0.03
0.13
+
0.05
0.95
0.42
0.1
–
0.04
8) Package: SSOP5(SMP5C2)
9) Operating temperature range:
-
40°C ~ +105°C
SSOP5(SMP5C2)
Application Circuit
BD45XXXG
BD46XXXG
VDD
VDD
VDD
VDD
VDD
Reset
Vout
Oscillation circuit
counter timer
Oscillation circuit
counter timer
Reset
Vout
Vref
Vref
GND
ER
GND
ER
Pin No.
1
2
3
4
5
ER
Sub
GND
VOUT
VDD
SSOP5
1/4
BD45XXXG
BD46XXXG
Voltage detectors
Absolute Maximum Ratings (Ta=25˚C)
Symbol
Limits
Unit
V
Parameter
Power supply voltage
VDD – GND
– 0.3 ~ + 10
GND – 0.3 ~ + 10
Nch open drain output
Output
VOUT
V
voltage
CMOS output
GND – 0.3 ~ VDD + 0.3
GND – 0.3 ~ VDD + 0.3
540
ER pin input voltage
VCT
Pd
V
mW
˚C
∗1
Power dissipation:SSOP5
Operating temperature range
Storage temperature range
Topr
Tstg
– 40 ~ + 105
– 55 ~ + 125
˚C
∗1 Derating: 5.4mW/˚C for operation above Ta=25˚C.(Mounted on a 70.0mmX70.0mmX16mm glass epoxy PCB.)
Electrical characteristics (Unless otherwise noted; Ta=
-
25˚C ~ +105˚C)
Symbol
Min.
Typ.
Max.
Unit
Conditions
40˚C ~ +105˚C
RL=470KΩ, VDD=L→H→L
Parameter
∗1
∗1
Detection voltage
VDET/∆T
∆VDET
—
±100
±360
ppm/˚C
%
Ta=-
temperature coefficient
Hysteresis voltage
V
DETX0.03 VDETX0.05 VDETX0.08
—
—
0.70
0.75
0.80
0.75
0.80
0.85
—
2.10
2.25
2.40
2.25
2.40
2.55
—
VDET=2.3~3.1V
Circuit current when ON
VDET=3.2~4.2V
VDET=4.3~4.8V
VDET=2.3~3.1V
VDET=3.2~4.2V
VDET=4.3~4.8V
Icc1
µA
VDD=VDET–0.2V
VDD=VDET+2V
—
∗1
—
Icc2
Circuit current when OFF
—
µA
—
Min. operating voltage
"L" output current
VOPL
IOL
0.95
0.4
2.0
1.0
1.2
—
V
RL=470kΩ, VOL≥0.4V
1.2
5
—
VDS=0.5V, VDD=1.2V
mA
—
VDS=0.5V, VDD=2.4V (VDET≥2.7V)
∗1
—
2.2
2.7
—
VDS=0.5V, VDD=4.8V
VDET=2.3~4.2V
IOH
"H" output current
Output leak current
mA
µA
—
VDS=0.5V, VDD=6.0V VDET=4.3~4.8V
VDD=VDS=10V
∗1
∗1
0.1
55
Ilaek
45
50
BD45XX5G, BD46XX5G
"H" transmission
delay time
RL=100kΩ
tPLH
V
90
100
110
BD45XX1G, BD46XX1G
CL=100pF
180
2.0
—
200
220
BD45XX2G, BD46XX2G
∗1
∗1
ER pin "H" voltage
ER pin "L" voltage
ER pin input current
VEH
VEL
IER
—
—
V
V
—
0.8
µA
—
1
10
VER=2.0V
∗1 This value is guranteed at Ta=25˚C.
Note) RL is not necessary for CMOS output type.
Note) Please refer to the detection voltage of Line-up table.
Characteristic diagram and Measurement circuit
Output delay time "L → H"
Output delay time "H → L"
250
50
(BD4x28xG tPLH)
(BD4x28x tPLH)
BD45282G
200
150
40
30
20
10
0
BD45281G
100
BD45285G
50
0
-
60
-
40
-
20
0
20
40
60
80
100 120
-60
-40
-
20
0
20
40
60
80
100 120
Ta (°C)
Ta (°C)
5V
5V
RL=100kΩ
RL=100kΩ
VDD
VDD
ER
VOUT
ER
VOUT
GND
GND
VDET±0.5V
VDET±0.5V
100pF
100pF
2/4
BD45XXXG
BD46XXXG
Voltage detectors
Circuit current
"L" output current
"H" output current
18
15
(BD45281G)
(BD45281G)
(BD46281G)
1.5
1.0
0.5
15
10
V
DD=6.0V
VDD=2.4V
10
5
V
.8
DD=4
V
5
2
VDD=1.2V
2
0
0.5
1
1.5
2.5
0
1
2
3
4
5
6
0
1
2
3
4
5
6
7
8
9
10
VDD (V)
VDS(V)
VDS (V)
VDS
A
VDD
VDD
VDD
A
VOUT
VDD
ER
VOUT
ER
ER
VOUT
VDD
VDD
A
GND
GND
GND
VDS
I/O characteristic
Detection voltage
9
8
7
6
5
4
3
2
1
(BD45421G)
(BD45421G)
5.4
5.0
4.6
low to high(VDET+∆VDET
)
4.2
3.8
high to low(VDET
)
Ta=25˚C
3.4
Ta=25˚C
0
0.5
1
1.5
2
2.5
VDD
3
(V)
3.5
4
4.5
5
5.5
–40
0
50
90
(˚C)
Ta
RL=470KΩ
RL=470KΩ
VDD
VDD
VDD
VDD
VOUT
VOUT
ER
ER
V
V
GND
GND
Timing waveform
VDD
VDET+∆VDET
VDET
VDD
0V
VOH
VOUT
ER
tPLH
tPLH
tPLH
VOL
VEH
tPHL
tPHL
3/4
BD45XXXG
BD46XXXG
Voltage detectors
Part number and Marking of samples
BD45XXXG/BD46XXXG : SSOP5(SMP5C2)
Marking
Marking
Voltage Marking Part No. Marking Part No. Marking Part No. Marking Part No.
Part No.
Part No.
( )
5
( )
4
4.8V
4.7V
4.6V
4.5V
4.4V
4.3V
4.2V
4.1V
4.0V
3.9V
3.8V
3.7V
3.6V
3.5V
3.4V
3.3V
3.2V
3.1V
3.0V
T0
T1
T2
T3
T4
T5
T6
T7
T8
T9
TA
TB
TC
TD
TE
TF
TG
TH
TJ
BD45485
BD45475
BD45465
BD45455
BD45445
BD45435
BD45425
TS
TT
TU
TV
BD45481
BD45471
BD45461
BD45451
UJ
UK
UL
UM
UN
UP
UQ
UR
US
UT
UU
UV
UW
UX
UY
UZ
V0
BD45482
BD45472
BD45462
BD45452
BD45442
BD45432
BD45422
VA
VB
VC
VD
VE
VF
VG
VH
VJ
BD46485
BD46475
BD46465
BD46455
BD46445
BD46435
BD46425
W2 BD46481
WU
WV
WW
WX
WY
WZ
X0
X1
X2
X3
X4
BD46482
BD46472
BD46462
BD46452
BD46442
BD46432
BD46422
W3
W4
W5
BD46471
BD46461
BD46451
TW BD45441
W6 BD46441
BD45431
BD45421
BD46431
BD46421
TX
TY
TZ
U0
U1
U2
U3
U4
U5
U6
U7
U8
U9
UA
UB
UC
UD
UE
UF
UG
UH
W7
W8
W9
WA
WB
WC
WD
WE
WF
WG
WH
WJ
(
2
)
(
)
( )
1
3
Lot.No
Marking
BD45415
BD45405
BD45395
BD45385
BD45375
BD45365
BD45355
BD45345
BD45335
BD45325
BD45315
BD45305
BD45411
BD45401
BD45391
BD45381
BD45371
BD45361
BD45351
BD45341
BD45331
BD45321
BD45311
BD45301
BD45412
BD45402
BD45392
BD45382
BD45372
BD45362
BD45352
BD45342
BD45332
BD45322
BD45312
BD45302
BD46415
BD46405
BD46395
BD46385
BD46375
BD46365
BD46355
BD46345
BD46335
BD46325
BD46315
BD46305
BD46411
BD46401
BD46391
BD46381
BD46371
BD46361
BD46351
BD46341
BD46331
BD46321
BD46311
BD46301
BD46412
BD46402
BD46392
BD46382
BD46372
BD46362
BD46352
BD46342
BD46332
BD46322
BD46312
BD46302
VK
VL
VM
VN
VP
VQ
VR
VS
VT
VU
VV
VW
VX
VY
VZ
W0
W1
X5
X6
X7
X8
X9
XA
XB
XC
XD
XE
XF
XG
XH
XJ
V1
V2
WK
WL
2.9V
2.8V
2.7V
2.6V
2.5V
2.4V
2.3V
TK
TL
TM
TN
TP
TQ
TR
BD45295
BD45285
BD45275
BD45265
BD45255
BD45245
BD45235
BD45291
BD45281
BD45271
BD45261
BD45251
BD45241
BD45231
V3
V4
V5
V6
V7
V8
V9
BD45292
BD45282
BD45272
BD45262
BD45252
BD45242
BD45232
BD46295
BD46285
BD46275
BD46265
BD46255
BD46245
BD46235
WM BD46291
BD46281
WP BD46271
BD46292
BD46282
BD46272
BD46262
BD46252
BD46242
BD46232
WN
BD46261
BD46251
BD46241
WQ
WR
WS
WT BD46231
XK
Line-up
50msec delay
Nch
100msec delay
Nch
200msec delay
Nch
Detection voltage
Detection
voltage
Hysteresis
voltage
V
DET ( V )Ta=25˚C
CMOS output
CMOS output
CMOS output
Package
open drain output
open drain output
open drain output
V
DET
Min. Typ.
Max. ( V, Typ. )
4.8V BD45485G BD46485G BD45481G BD46481G BD45482G BD46482G 4.752 4.800 4.848
4.7V BD45475G BD46475G BD45471G BD46471G BD45472G BD46472G 4.653 4.700 4.747
4.6V BD45465G BD46465G BD45461G BD46461G BD45462G BD46462G 4.554 4.600 4.646
4.5V BD45455G BD46455G BD45451G BD46451G BD45452G BD46452G 4.455 4.500 4.545
4.4V BD45445G BD46445G BD45441G BD46441G BD45442G BD46442G 4.356 4.400 4.444
4.3V BD45435G BD46435G BD45431G BD46431G BD45432G BD46432G 4.257 4.300 4.343
4.2V BD45425G BD46425G BD45421G BD46421G BD45422G BD46422G 4.158 4.200 4.242
4.1V BD45415G BD46415G BD45411G BD46411G BD45412G BD46412G 4.059 4.100 4.141
4.0V BD45405G BD46405G BD45401G BD46401G BD45402G BD46402G 3.960 4.000 4.040
3.9V BD45395G BD46395G BD45391G BD46391G BD45392G BD46392G 3.861 3.900 3.939
3.8V BD45385G BD46385G BD45381G BD46381G BD45382G BD46382G 3.762 3.800 3.838
3.7V BD45375G BD46375G BD45371G BD46371G BD45372G BD46372G 3.663 3.700 3.737
3.6V BD45365G BD46365G BD45361G BD46361G BD45362G BD46362G 3.564 3.600 3.636
3.5V BD45355G BD46355G BD45351G BD46351G BD45352G BD46352G 3.465 3.500 3.535
3.4V BD45345G BD46345G BD45341G BD46341G BD45342G BD46342G 3.366 3.400 3.434
3.3V BD45335G BD46335G BD45331G BD46331G BD45332G BD46332G 3.267 3.300 3.333
3.2V BD45325G BD46325G BD45321G BD46321G BD45322G BD46322G 3.168 3.200 3.232
3.1V BD45315G BD46315G BD45311G BD46311G BD45312G BD46312G 3.069 3.100 3.131
3.0V BD45305G BD46305G BD45301G BD46301G BD45302G BD46302G 2.970 3.000 3.030
SSOP5
DET X 0.05
(SMP5C2)
V
2.9V BD45295G BD46295G BD45291G BD46291G BD45292G BD46292G 2.871 2.900
2.929
2.8V BD45285G BD46285G BD45281G BD46281G BD45282G BD46282G 2.772 2.800 2.828
2.7V BD45275G BD46275G BD45271G BD46271G BD45272G BD46272G 2.673 2.700 2.727
2.6V BD45265G BD46265G BD45261G BD46261G BD45262G BD46262G 2.574 2.600 2.626
2.5V BD45255G BD46255G BD45251G BD46251G BD45252G BD46252G 2.475 2.500 2.525
2.4V BD45245G BD46245G BD45241G BD46241G BD45242G BD46242G 2.376 2.400 2.424
2.3V BD45235G BD46235G BD45231G BD46231G BD45232G BD46232G 2.277 2.300 2.323
4/4
相关型号：
BD45E231G-M
罗姆的BD45Exxxx-M、BD46Exxxx-M系列，是采用了CMOS工艺的高精度、低消耗电流的RESET IC系列。通过内置计数器定时器延迟电路，无需外接延迟时间设定用电容器。为保证客户可根据应用进行选择，备有Nch漏极开路输出BD45Exxxx-M和CMOS输出BD46Exxxx-M两个系列的产品。备有检测电压范围在2.3V～4.8V之间，可按0.1V阶跃进行选择的26种产品，按固定延迟时间不同共有156种类型。
ROHM
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