DM115 SiTi, DM115 Datasheet - Page 12

• Manufacturer Part Number: DM115
• Description: (DM114) 8-Bit Constant Current LED Drivers
• Manufacturer: SiTi

Note
this device requires a maximum output current be calculated for a given operating condition. The
maximum allowable power consumption (Pd (max)) of this device is calculated as follows:
Based on the Pd (max), the maximum allowable current can be calculated as follows:
8-BIT CONSTANT CURRENT LED DRIVERS with 3.3V~5V supply voltage
Pd
As the power dissipation of a semiconductor chip is limited its package and ambient temperature,
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
(max)(
70
60
50
40
30
20
10
0
0
0
SSOP
SOP
DIP
SSOP
Watt
20
SILICON TOUCH TECHNOLOGY INC.
20
點晶科技股份有限公司
SOP
)
40
40
=
(Tj
DIP
Imax - Ta ( DM115 )
60
60
(junction
Ta
Pd - Ta
Iout = ( Pd – V
80
80
Ta
100
100
temperatur
120
120
140
140
DD
Preliminary
‧I
e)
160
160
Rth
(max)
DD
(
) / ( # outputs‧Vo‧Duty )
°
C
-
/
Ta
Watt
(ambient t
100
90
80
70
60
50
40
30
20
10
)
0
0
SSOP
DIP
20
SOP
emperature
40
60
Imax - Ta ( DM114 )
Version:A.002
)
Ta
80
)(
DM114
°
C
100
)
120
、
140
DM115
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