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BD45421G-TR

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
○Product structure：Silicon monolithic integrated circuit ○This product is not designed for protection against radioactive rays
.
1/13
Datashee
t
TSZ02201-0R7R0G300010-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
18.Dec.2012 Rev.005
TSZ22111・14・001
www.rohm.com
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.)
0.1V steps
High accuracy detection voltage: ±1.0%
Ultra-low current consumption: 0.85µA (Typ.)
Operating temperature range: -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
●Connection Diagram
●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.
VDD1 VDD2
GND
BD45xxx
CL
（Noise-filtering
Capacitor）
R
L
RST
Micro
controller
（Open Drain Output Type）
BD45xxx series
（CMOS Output Type）
BD46xxx series
CL
（Noise-filtering
Capacitor）
VDD1
GND
BD46xxx
RST
Micro
controller
SSOP5
TOP VIEW
ER SUB GND
V
OUT VDD
Lot. No
Marking
Datasheet
Datasheet
2/13
BD45xxx series BD46xxx series
TSZ02201-0R7R0G300010-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
18.Dec.2012 Rev.005
www.rohm.com
TSZ22111・15・001
●Ordering Information
●Lineup
Table 1. Open Drain Output Type
Counter Timer Delay Time Settings
50ms 100ms 200ms
Detection
Voltage
Marking
Part
Number
Marking
Part
Number
Marking
Part
Number
4.8V
T0 BD45485 TS BD45481 UJ BD45482
4.7V
T1 BD45475 TT BD45471 UK BD45472
4.6V
T2 BD45465 TU BD45461 UL BD45462
4.5V
T3 BD45455 TV BD45451 UM BD45452
4.4V
T4 BD45445 TW BD45441 UN BD45442
4.3V
T5 BD45435 TX BD45431 UP BD45432
4.2V
T6 BD45425 TY BD45421 UQ BD45422
4.1V
T7 BD45415 TZ BD45411 UR BD45412
4.0V
T8 BD45405 U0 BD45401 US BD45402
3.9V
T9 BD45395 U1 BD45391 UT BD45392
3.8V
TA BD45385 U2 BD45381 UU BD45382
3.7V
TB BD45375 U3 BD45371 UV BD45372
3.6V
TC BD45365 U4 BD45361 UW BD45362
3.5V
TD BD45355 U5 BD45351 UX BD45352
3.4V
TE BD45345 U6 BD45341 UY BD45342
3.3V
TF BD45335 U7 BD45331 UZ BD45332
3.2V
TG BD45325 U8 BD45321 V0 BD45322
3.1V
TH BD45315 U9 BD45311 V1 BD45312
3.0V
TJ BD45305 UA BD45301 V2 BD45302
2.9V
TK BD45295 UB BD45291 V3 BD45292
2.8V
TL BD45285 UC BD45281 V4 BD45282
2.7V
TM BD45275 UD BD45271 V5 BD45272
2.6V
TN BD45265 UE BD45261 V6 BD45262
2.5V
TP BD45255 UF BD45251 V7 BD45252
2.4V
TQ BD45245 UG BD45241 V8 BD45242
2.3V
TR BD45235 UH BD45231 V9 BD45232
Direction of feed
Reel
∗
Order quantity needs to be multiple of the minimum quantity.
<Tape and Reel information>
Embossed carrier tapeTape
Quantity
Direction
of feed
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
3000pcs
TR
()
1pin
(Unit : mm)
SSOP5
2.9±0.2
0.13
4
°
+
6
°
−4
°
1.6
2.8±0.2
1.1±0.05
0.05±0.05
+0.2
−0.1
+0.05
−0.03
0.42
+0.05
−0.04
0.95
5
4
12
3
1.25Max.
0.2Min.
0.1 S
S
BDxxxx x x-TR
Part Output Type Reset Voltage Value Counter Timer Package Packaging and
Number 45 : Open Drain 23 : 2.3V Delay Time Settings G : SSOP5 forming specification
46 : CMOS 0.1V step 5 : 50ms TR : Embossed tape
48 : 4.8V 1 : 100ms and reel
2 : 200ms
Datasheet
Datasheet
3/13
BD45xxx series BD46xxx series
TSZ02201-0R7R0G300010-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
18.Dec.2012 Rev.005
www.rohm.com
TSZ22111・15・001
●Lineup - continued
Table 2. CMOS Output Type
Counter Timer Delay Time Settings
50ms 100ms 200ms
Detection
Voltage
Marking
Part
Number
Marking
Part
Number
Marking
Part
Number
4.8V
VA BD46485 W2 BD46481 WU BD46482
4.7V
VB BD46475 W3 BD46471 WV BD46472
4.6V
VC BD46465 W4 BD46461 WW BD46462
4.5V
VD BD46455 W5 BD46451 WX BD46452
4.4V
VE BD46445 W6 BD46441 WY BD46442
4.3V
VF BD46435 W7 BD46431 WZ BD46432
4.2V
VG BD46425 W8 BD46421 X0 BD46422
4.1V
VH BD46415 W9 BD46411 X1 BD46412
4.0V
VJ BD46405 WA BD46401 X2 BD46402
3.9V
VK BD46395 WB BD46391 X3 BD46392
3.8V
VL BD46385 WC BD46381 X4 BD46382
3.7V
VM BD46375 WD BD46371 X5 BD46372
3.6V
VN BD46365 WE BD46361 X6 BD46362
3.5V
VP BD46355 WF BD46351 X7 BD46352
3.4V
VQ BD46345 WG BD46341 X8 BD46342
3.3V
VR BD46335 WH BD46331 X9 BD46332
3.2V
VS BD46325 WJ BD46321 XA BD46322
3.1V
VT BD46315 WK BD46311 XB BD46312
3.0V
VU BD46305 WL BD46301 XC BD46302
2.9V
VV BD46295 WM BD46291 XD BD46292
2.8V
VW BD46285 WN BD46281 XE BD46282
2.7V
VX BD46275 WP BD46271 XF BD46272
4.8V
VY BD46265 WQ BD46261 XG BD46262
4.7V
VZ BD46255 WR BD46251 XH BD46252
4.6V
W0 BD46245 WS BD46241 XJ BD46242
4.5V
W1 BD46235 WT BD46231 XK BD46232
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

BD45421G-TR

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Supervisory Circuits RESET DETEC VOLT 4.2V
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