BD45245 Datasheet PDF - Rohm

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BD45245
Rohm

Part Number BD45245
Description Counter Timer Built-in CMOS Voltage Detector IC
Page 16 Pages


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Datasheet
Voltage Detector IC Series
Counter Timer Built-in
CMOS Voltage Detector IC
BD45xxx series BD46xxx series
General Description
ROHM’s BD45xxx and BD46xxx series are highly
accurate, low current consumption Voltage Detector ICs.
Because the counter timer delay circuit is built into
these series, an external capacitor for the delay time
setting is unnecessary. The lineup was established with
low output types (Nch open drain and CMOS output)
and detection voltages range from 2.3V to 4.8V in
increments of 0.1V, so that the series may be selected
according the application at hand.
Features
„ Counter Timer Built-in
„ No delay time setting external capacitor required
„ Ultra-low current consumption
„ Two output types (Nch open drain and CMOS output)
„ Package SSOP5 is similar to SOT-23-5 (JEDEC)
Key Specifications
„ Detection voltage:
2.3V to 4.8V (Typ.)
„ High accuracy detection voltage:
„ Ultra-low current consumption:
„ Operating temperature range:
0.1V steps
±1.0%
0.85µA (Typ.)
-40°C to +105°C
„ Three internal, fixed delay time:
50ms
100ms
200ms
Package
SSOP5
2.90mm x 2.80mm x 1.25mm
Applications
Circuits using microcontrollers or logic circuits that
require a reset.
Typical Application Circuit
VDD1
VDD2
BD45xxx
RL
Micro
RST controller
CL
Noise-filtering
Capacitor
Open Drain Output Type
BD45xxx series
Connection Diagram
SSOP5
VDD
VOUT
GND
TOP VIEW
Marking
Lot. No
ER SUB GND
VDD1
BD46xxx
RST
Micro
controller
GND
CL
Noise-filtering
Capacitor
CMOS Output Type
BD46xxx series
Pin Descriptions
PIN No. Symbol
Function
1 ER Manual Reset
2
SUB
Substrate *
3
GND
GND
4
VOUT
Reset Output
5 VDD Power Supply Voltage
*Connect the substrate to GND.
Product structureSilicon monolithic integrated circuit
.www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product is not designed for protection against radioactive rays
1/13
TSZ02201-0R7R0G300010-1-2
15.Nov.2013 Rev.007



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BD45xxx series BD46xxx series
Ordering Information
BDx x x
x
Datasheet
x x -TR
Part
Number
Output Type
45 : Open Drain
46 : CMOS
Reset Voltage Value
23 : 2.3V
0.1V step
48 : 4.8V
Counter Timer
Delay Time Settings
5 : 50ms
1 : 100ms
2 : 200ms
Package
G : SSOP5
Packaging and
forming specification
TR : Embossed tape
and reel
SSOP5
2.9±0.2
54
4°
+6°
4°
123
0.13
+0.05
0.03
S
0.95
+0.05
0.42 0.04
0.1 S
(Unit : mm)
<Tape and Reel information>
Tape
Quantity
Embossed carrier tape
3000pcs
Direction
of feed
TR
( )The direction is the 1pin of product is at the upper right when you hold
reel on the left hand and you pull out the tape on the right hand
1pin
Reel
Direction of feed
Order quantity needs to be multiple of the minimum quantity.
Lineup
Table 1. Open Drain Output Type
Counter Timer Delay Time Settings
50ms
100ms
200ms
Detection
Voltage
Marking
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
2.9V
2.8V
2.7V
2.6V
2.5V
2.4V
2.3V
T0
T1
T2
T3
T4
T5
T6
T7
T8
T9
TA
TB
TC
TD
TE
TF
TG
TH
TJ
TK
TL
TM
TN
TP
TQ
TR
Part
Number
BD45485
BD45475
BD45465
BD45455
BD45445
BD45435
BD45425
BD45415
BD45405
BD45395
BD45385
BD45375
BD45365
BD45355
BD45345
BD45335
BD45325
BD45315
BD45305
BD45295
BD45285
BD45275
BD45265
BD45255
BD45245
BD45235
Marking
TS
TT
TU
TV
TW
TX
TY
TZ
U0
U1
U2
U3
U4
U5
U6
U7
U8
U9
UA
UB
UC
UD
UE
UF
UG
UH
Part
Number
BD45481
BD45471
BD45461
BD45451
BD45441
BD45431
BD45421
BD45411
BD45401
BD45391
BD45381
BD45371
BD45361
BD45351
BD45341
BD45331
BD45321
BD45311
BD45301
BD45291
BD45281
BD45271
BD45261
BD45251
BD45241
BD45231
Marking
UJ
UK
UL
UM
UN
UP
UQ
UR
US
UT
UU
UV
UW
UX
UY
UZ
V0
V1
V2
V3
V4
V5
V6
V7
V8
V9
Part
Number
BD45482
BD45472
BD45462
BD45452
BD45442
BD45432
BD45422
BD45412
BD45402
BD45392
BD45382
BD45372
BD45362
BD45352
BD45342
BD45332
BD45322
BD45312
BD45302
BD45292
BD45282
BD45272
BD45262
BD45252
BD45242
BD45232
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
2/13
TSZ02201-0R7R0G300010-1-2
15.Nov.2013 Rev.007



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BD45xxx series BD46xxx series
Lineup - continued
Table 2. CMOS Output Type
Counter Timer Delay Time Settings
50ms
Detection
Voltage
Marking
Part
Number
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
2.9V
2.8V
2.7V
2.6V
2.5V
2.4V
2.3V
VA BD46485
VB BD46475
VC BD46465
VD BD46455
VE BD46445
VF BD46435
VG BD46425
VH BD46415
VJ BD46405
VK BD46395
VL BD46385
VM BD46375
VN BD46365
VP BD46355
VQ BD46345
VR BD46335
VS BD46325
VT BD46315
VU BD46305
VV BD46295
VW BD46285
VX BD46275
VY BD46265
VZ BD46255
W0 BD46245
W1 BD46235
100ms
Marking
Part
Number
W2 BD46481
W3 BD46471
W4 BD46461
W5 BD46451
W6 BD46441
W7 BD46431
W8 BD46421
W9 BD46411
WA BD46401
WB BD46391
WC BD46381
WD BD46371
WE BD46361
WF BD46351
WG BD46341
WH BD46331
WJ BD46321
WK BD46311
WL BD46301
WM BD46291
WN BD46281
WP BD46271
WQ BD46261
WR BD46251
WS BD46241
WT BD46231
200ms
Marking
Part
Number
WU BD46482
WV BD46472
WW BD46462
WX BD46452
WY BD46442
WZ BD46432
X0 BD46422
X1 BD46412
X2 BD46402
X3 BD46392
X4 BD46382
X5 BD46372
X6 BD46362
X7 BD46352
X8 BD46342
X9 BD46332
XA BD46322
XB BD46312
XC BD46302
XD BD46292
XE BD46282
XF BD46272
XG BD46262
XH BD46252
XJ BD46242
XK BD46232
Datasheet
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
3/13
TSZ02201-0R7R0G300010-1-2
15.Nov.2013 Rev.007



No Preview Available !

BD45xxx series BD46xxx series
Datasheet
z Absolute maximum ratings
Parameter
Symbol
Limits
Power Supply Voltage
VDD-GND
-0.3 to +10
Output Voltage
Output Current
Nch Open Drain Output
CMOS Output
VOUT
IO
GND-0.3 to +10
GND-0.3 to VDD+0.3
60
ER pin Voltage
Power Dissipation
VCT
*1 *2 Pd
GND-0.3 to VDD+0.3
540
Operating Temperature
Topr -40 to +105
Ambient Storage Temperature
Tstg -55 to +125
*1 Reduced by 5.4mW/°C when used over 25°C.
*2 When mounted on ROHM standard circuit board (70mm×70mm×1.6mm, glass epoxy board).
Unit
V
V
mA
V
mW
°C
°C
Electrical characteristics (Unless Otherwise Specified Ta=-40 to 105°C)
Parameter
Symbol
Condition
VDD=HÆL, RL=470k
*1
Detection Voltage
Detection Voltage
Temperature coefficient
Hysteresis Voltage
VDET
VDET/
T
VDET
VDET=2.5V
VDET=3.0V
VDET=3.3V
VDET=4.2V
VDET=4.8V
-40°C to +105°C
Ta=+25°C
Ta=-40°C to 85°C
Ta=85°C to 105°C
Ta=+25°C
Ta=-40°C to 85°C
Ta=85°C to 105°C
Ta=+25°C
Ta=-40°C to 85°C
Ta=85°C to 105°C
Ta=+25°C
Ta=-40°C to 85°C
Ta=85°C to 105°C
Ta=+25°C
Ta=-40°C to 85°C
Ta=85°C to 105°C
VDDLÆHÆL, RL=470k
‘High’ Output
Delay time
tPLH
CL=100pF,
RL=100k
*1, *2, *3
BD45XX5, BD46XX5
BD45XX1, BD46XX1
BD45XX2, BD46XX2
VDD=VDET-0.2V, VER=0V VDET=2.3V to 3.1V
*1
Circuit Current
when ON
IDD1
VDD=VDET-0.2V, VER=0V VDET=2.3V to 3.1V
VDD=VDET-0.2V, VER=0V VDET=3.2V to 4.2V
VDD=VDET-0.2V, VER=0V VDET=3.2V to 4.2V
VDD=VDET-0.2V, VER=0V VDET=4.3V to 4.8V
*1
*1
VDD=VDET-0.2V, VER=0V VDET=4.3V to 4.8V
VDD=VDET+0.2V, VER=0V VDET=2.3V to 3.1V *1
Circuit Current
when OFF
IDD2
VDD=VDET+0.2V, VER=0V VDET=2.3V to 3.1V
VDD=VDET+0.2V, VER=0V VDET=3.2V to 4.2V
VDD=VDET+0.2V, VER=0V VDET=3.2V to 4.2V
VDD=VDET+0.2V, VER=0V VDET=4.3V to 4.8V
*1
*1
VDD=VDET+0.2V, VER=0V VDET=4.3V to 4.8V
VDET(T):Standard Detection Voltage (2.3V to 4.8V, 0.1V step)
RL :Pull-up resistor to be connected between VOUT and power supply.
CL :Capacitor to be connected between VOUT and GND.
*1 Guarantee is Ta=25°C.
*2 tPLH:VDD=(VDET(T)-0.5V)Æ(VDET(T)+0.5V)
*3 tPLH:VDD=Please set the rise up time between VDD=0ÆVDET to more than 100µs.
Attention: Please connect the GND when you don’t use ‘ER’
Min.
VDET(T)
×0.99
2.475
2.418
2.404
2.970
2.901
2.885
3.267
3.191
3.173
4.158
4.061
4.039
4.752
4.641
4.616
Limit
Typ.
VDET(T)
2.5
-
-
3.0
-
-
3.3
-
-
4.2
-
-
4.8
-
-
Max.
VDET(T)
×1.01
2.525
2.584
2.597
3.030
3.100
3.117
3.333
3.410
3.428
4.242
4.341
4.364
4.848
4.961
4.987
Unit
V
- ±100 ±360 ppm/°C
VDET(T)
×0.03
45
90
180
-
-
-
-
-
-
-
-
-
-
-
-
VDET(T)
×0.05
50
100
200
0.70
0.70
0.75
0.75
0.80
0.80
0.75
0.75
0.80
0.80
0.85
0.85
VDET(T)
×0.08
55
110
220
2.10
2.85
2.25
3.00
2.40
3.15
2.25
4.28
2.40
4.50
2.55
4.73
V
ms
µA
µA
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
4/13
TSZ02201-0R7R0G300010-1-2
15.Nov.2013 Rev.007



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