Instruction Manual

Description
Features
Applications
Car stereo
Dimension (Unit : mm)
February, 2004
03W202A
BA4911
System regulator for car stereo
SIP-M12
1.2
21.6 ± 0.5
7.0 ± 0.1
1.2
6.5 ± 0.5
1
6.9 ± 0.1
2.54
0.6
12
29.8 ± 0.2
24.0 ± 0.1
13.9 ± 0.3
0.4 ± 0.1
4.7 ± 0.2
R
1
.8
Absolute Maximum Ratings (Ta=25˚C)
Power supply voltage
Power dissipation
Operating temperature range
Storage temperature range
Peak applied voltage
Parameter Symbol
Limits
Unit
∗ Derating : 27.2mW/˚C for operation above Ta=25˚C
∗1 tr ≥ 1msec Applied time within 200msec
∗Electric characteristic is not guaranteed. (Especially at low input voltage)
Vcc
Pd
Topr
Tstg
36
3000
+
85
+
150
- 30
- 55
~
~
mW
˚C
˚C
V
V
Recommended supply voltage 1
Recommended supply voltage 2
Recommended supply voltage 3
Vcc1
18
10
14.4
V
Vcc2
18
8.2
14.4 V
Vcc3
Except VDD output, ILM output
VDD output
ILM output
18
11.4
14.4 V
Recommended Operating Conditions (Ta=25˚C)
Parameter Min. Max. Unit ConditionsTyp.Symbol
∗
Vcc PEAK
50
∗1
BA4911 is a system regulator IC for car stereo.
This IC incorporates 1 channel of 5.0V output,
2 channels of 8.12V output, 1channel of 7.9V
output, 1channel of 10.3V output and 2 channels
of high side switch.
1) PNP output and low drop out type
2) Built-in output current limits circuit to protect IC
from destruction by short
3) Built-in over-voltage protection circuit to deliver
strong design for surge input to BACK UP and Vcc
4) 12pin power package perfect for space saving design
5) Built-in thermal protection circuit to protect IC
from thermal destruction
6) Strong design against instant power failure of battery
because VDD can be driven by load stored in BACK UP
capacitor.