Document
Datasheet
Voltage Detector IC Series for Automotive
Counter Timer Built-in CMOS Voltage Detector IC
BD45Exxxx-M series BD46Exxxx-M series
●General Description ROHM’s BD45Exxxx-M and BD46Exxxx-M series are highly accurate, low current consumption Voltage
Detector IC series. Because the counter timer delay circuit is built into those series, an external capacitor for the delay time setting is unnecessary. The lineup was
established with two 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 to application. ●Features
Counter Timer Built-in No delay time setting capacitor required Ultra-low current consumption Two output types (Nch open drain and CMOS output) Package SSOP5 is similar to SOT-23-5 (JEDEC) AEC-Q100 Qualified
●Key Specifications Detection voltage:
2.3V to 4.8V (Typ.)
High accuracy detection voltage: Ultra-low current consumption: Operating temperature range: Three internal, fixed delay time:
0.1V steps ±1.0%
0.85µA (Typ.) -40°C to +105°C
50ms
100ms
200ms
●Package
SSOP5
2.90mm x 2.80mm x 1.25mm
●Applications Circuits using microcontrollers or logic circuits that require a reset for automotive applications (car navigation, car audio, meter panel, exterior lamp etc.)
●Typical Application Circuit
VDD1
VDD2
BD45Exxxx-M
RL Micro
RST controller
CL
(Noise-filtering Capacitor)
(Open Drain Output Type) BD45Exxxx-M series
●Connection Diagram
SSOP5
VDD
VOUT
GND
TOP VIEW
Marking
Lot. No
ER SUB GND
VDD1
BD46Exxxx-M
RST
Micro controller
GND
CL
(Noise-filtering Capacitor)
(CMOS Output Type) BD46Exxxx-M 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 structure:Silicon monolithic integrated circuit
.www.rohm.com © 2013 ROHM Co., Ltd. All rights reserved. TSZ22111・14・001
○This product is not designed for protection against radioactive rays
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TSZ02201-0R7R0G300110-1-2 27.Aug.2013 Rev.004
BD45Exxxx-M series BD46Exxxx-M series
●Ordering Information
BDx x E x x
x
x-
M
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
Product Category M : Automotive Category
Packaging and forming specification TR : Embossed tape
and reel
●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
a2 a1 Yy Yr Yp Yn Ym Yk Yh Yg Yf Ye Yd Yc Yb Ya Uy Ur Up Un Um Uk Uh Ug Uf Ue
Part Number
BD45E485 BD45E475 BD45E465 BD45E455 BD45E445 BD45E435 BD45E425 BD45E415 BD45E405 BD45E395 BD45E385 BD45E375 BD45E365 BD45E355 BD45E345 BD45E335 BD45E325 BD45E315 BD45E305 BD45E295 BD45E285 BD45E275 BD45E265 BD45E255 BD45E245 BD45E235
Marking
d1 c9 c8 c7 c6 c5 c4 c3 c2 c1 b9 b8 b7 b6 b5 b4 b3 b2 b1 a9 a8 a7 a6 a5 a4 a3
Part Number
BD45E481 BD45E471 BD45E461 BD45E451 BD45E441 BD45E431 BD45E421 BD45E411 BD45E401 BD45E391 BD45E381 BD45E371 BD45E361 BD45E351 BD45E341 BD45E331 BD45E321 BD45E311 BD45E301 BD45E291 BD45E281 BD45E271 BD45E261 BD45E251 BD45E241 BD45E231
Marking
f9 f8 f7 f6 f5 f4 f3 f2 f1 e9 e8 e7 e6 e5 e4 e3 e2 e1 d9 d8 d7 d6 d5 d4 d3 d2
Part Number
BD45E482 BD45E472 BD45E462 BD45E452 BD45E442 BD45E432 BD45E422 BD45E412 BD45E402 BD45E392 BD45E382 BD45E372 BD45E362 BD45E352 BD45E342 BD45E332 BD45E322 BD45E312 BD45E302 BD45E292 BD45E282 BD45E272 BD45E262 BD45E252 BD45E242 BD45E232
www.rohm.com © 2013 ROHM Co., Ltd. All rights reserved. TSZ22111・15・001
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BD45Exxxx-M series BD46Exxxx-M series
●Lineup - continued Table 2. CMOS Output Type
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
k8 k7 k6 k5 k4 k3 k2 k1 h9 h8 h7 h6 h5 h4 h3 h2 h1 g9 g8 g7 g6 g5 g4 g3 g2 g1
50ms
Part Number
BD46E485 BD46E475 BD46E465 BD46E455 BD46E445 BD46E435 BD46E425 BD46E415 BD46E405 BD46E395 BD46E385 BD46E375 BD46E365 BD46E355 BD46E345 BD46E335 BD46E325 BD46E315 BD46E305 BD46E295 BD46E285 BD46E275 BD46E265 BD46E255 BD46E245 BD46E235
Counter Timer Delay Time Settings
100ms
Marking
p7 p6 p5 p4 p3 p2 p1 n9 n8 n7 n6 n5 n4 n3 n2 n1 m9 m8 m7 m6 m5 m4 m3 m2 m1 k9
Part Number
BD46E481 BD46E471 BD46E461 BD46E451 BD46E441 BD46E431 BD46E421 BD46E411 BD46E401 BD46E391 BD46E381 BD46E371 BD46E361 BD46E351 BD46E341 BD46E331 BD46E321 BD46E311 BD46E301 BD46E291 BD46E281 BD46E271 BD46E261 BD46E251 BD46E241 BD46E231
Marking
1f 1e 1d 1c 1b 1a y9 y8 y7 y6 y5 y4 y3 y2 y1 r9 r8 r7 r6 r5 r4 r3 r2 r1 p9 p8
200ms
Part Number
BD46E482 BD46E472 BD46E462 BD46E452 BD46E442 BD46E432 .