ROHM BA12004B, BA12003BF, BA12003B, BA12001B Datasheet
BA12001B / BA12003B / BA12003BF / BA12004B
Standard ICs
High voltage, high current Darlington
transistor array
BA12001B / BA12003B / BA12003BF / BA 12004B
The BA12001B, BA12003B, BA12003BF , and BA12004B are high voltage, high current, high sustain voltage transistor
arrays consisting of seven circuits of Darlington transistors.
Because it incorporates built-in surge-absorbing diodes and base current-control resistors needed when using inductive
loads such as relay coils, attachments can be kept to a minimum.
With an output sustain voltage as high as 60V and an output current (sink current) of 500mA, this product is ideal for use
with variou s driver s and as an in terfa ce with ot her elem ents.
zApplications
Drivers for LEDs, lamps, relays and solenoids
Interface with other elements
zFeatures
1) High output current. (I
2) High output sustain voltage. (V
=500mA Max.)
OUT
OUT
=50V Max.)
3) Seven D arli ngton tran sist ors b uilt in .
4) Built-in surge-absorbing clamp diode.
(Note : Refer to the “Reference items when using in application.” )
zzzz
Block diagram
IN1
1
2
IN2
3
IN3
4
IN4
IN5
5
IN6
6
IN7
7
8
GND
OUT1
16
15
OUT2
14
OUT3
13
OUT4
OUT5
12
OUT6
11
OUT7
10
9
COM
Standard ICs
z
zInternal circuit configuration
zz
IN
7.2kΩ
3kΩ
Fig.1
10.5kΩ
IN
7.2kΩ
Fig.3
BA12001B / BA12003B / BA12003BF / BA12004B
COM
OUT
GND
BA12001B
3kΩ
BA12004B
COM
OUT
GND
COM
OUT
GND
IN
2.7kΩ
7.2kΩ
3kΩ
Fig.2
BA12003B / BF
z
zAbsolute maximum ratings (T a=25°C)
zz
Parameter Symbol Limits Unit
Power supply voltage
Input voltage
Input current
BA12001B
Output current I
Ground pin current I
Power dissipation
DIP package
SOP package
Diode reverse voltage V
Diode forward current I
V
V
GND
Pd
I
OUT
CE
IN
IN
60 V
−0.5∼+30 Vother than BA12001B
25
500
1
∗
2.3
2
∗
1250
3
∗
625
R
F
60 V
500 mA
Operating temperature Topr −25∼+75 ˚C
Storage temperature Tstg −55∼+150 ˚C
1 Pulse width ≤ 20ms, duty cycle ≤ 10%, same current for all 7 circuits
∗
2 Reduced by 10mW for each increase in Ta of 1˚C over 25˚C .
∗
3 Reduced by 50mW for each increase in Ta of 1˚C over 25˚C .
∗
z
zRecommended operating conditions (T a=25°C)
zz
Parameter Symbol Min. Typ. Max. Unit Conditions
Output current I
Power supply voltage V
Input voltage (excluding BA12001B)
Input current (BA12001B only) I
OUT
V
−−350 mA Fig.9, 10
CE
IN
IN
−−
55 V
−−30 V −
−−25 −mA / unit
mA / unit
mA / unit
A
mW
−
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