DD313 SITI [Silicon Touch Technology Inc.], DD313 Datasheet - Page 9

• Manufacturer Part Number: DD313
• Description: 3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER with ERROR DETECTION
• Manufacturer: SITI [Silicon Touch Technology Inc.]

Power Dissipation
temperature, in which the device requires the maximum output current calculated for given
operating conditions. The maximum allowable power consumption can be calculated by the
following equation:
The relationship between power dissipation and operating temperature can be refer to the figure
below:
Based on the Pd(max), the maximum allowable voltage of output terminal can be determined by the
following equation:
3-CHANNEL HIGH CONSTANT CURRENT LED DRIVER
VoutR
The power dissipation of a semiconductor chip is limited to its package and ambient
×
Pd(max)(Watt) =
IoutR
點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC
新竹市科學園區展業一路 9 號 7 樓之 1
Tel：[phone]
9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C.
3.5
2.5
1.5
0.5
×
3
2
1
0
DutyR + VoutG
0
TSSOP16EX
SOP16EX
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Tj(junction temperature)(max)(
×
20
IoutG
Rth(junction-to-air thermal resistance)(
×
DutyG + VoutB
.
Ambient Temperature Ta(℃)
40
×
IoutB
°
C)
–
60
×
Ta(ambient temperature)(
DutyB <
Tj(max)=150 °C
Rth
Rth
Version: A.003
(TSSOP16EX)
(SOP16EX)
Pd(max)(W)
°
C/Watt)
80
=46 °C/Watt
=38 °C/Watt
–
V
CC
(V)
°
C)
100
DD313
×
Page 8
I
DD
(A)