LB1838JM 查看數據表（PDF） - SANYO -> Panasonic
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LB1838JM Datasheet PDF : 5 Pages
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Vcont pin
VCC
IN
LB1838JM
VS
OUT
M
ID OUT
VZ
Vcont
VZ
ID = r (= constant)
As shown in the above diagram, the Vcont pin outputs the voltage of the band gap Zener VZ + VF (=1.93V).
In normal use, this pin is left open.
The drive current ID is varied by the Vcont voltage. However, because the band gap Zener is shared, it functions as a
bridge.
VO(sat) – IO
1.0
0.8
0.6
0.4
0.2
0
0
100
200
300
400
500
600
Output current, IO – mA
VO(sat) – Ta
0.6
VCC = VS = IN = 3V
VO(sat) = total value
0.5
0.4
IO = 400mA
0.2
0.3
IO = 200mA
0.1
0
– 40 – 20
0 20 40 60 80 100 120 140
Ambient temperature, Ta – °C
IIN – VIN
200
VCC = VS = 3V
160
120
IN1 (ENAEN=A3V)
80
40
0
0
1
2
3
4
5
6
7
8
9 10
Input voltage, VIN – V
IS – VS
20
VCC = VIN =3V
For 1 channel
16
12
8
4
0
0 1 2 3 4 5 6 7 8 9 10 11 12
Supply voltage, VS – V
No.A0927-4/5
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