NXP Semiconductors
Table 16.
PCA9626
24-bit Fm+ I 2 C-bus 100 mA 40 V LED driver
LQFP48 versus HVQFN48 power dissipation and output current capability
? ----------------------------------- = 121.7 mA [1]
? ----------------------------------- = 220.8 mA [1]
? ----------------------------------- = 75.1 mA
? ----------------------------------- = 140 mA [1]
? ----------------------------------- = 48.8 mA
? ----------------------------------- = 93.3 mA
Measurement
T amb = 25 ? C
maximum power
dissipation (chip + output
drivers)
maximum power
dissipation (output drivers
only)
maximum drive current
per channel
T amb = 60 ? C
maximum power
dissipation (chip + output
drivers)
maximum power
dissipation (output drivers
only)
maximum drive current
per channel
T amb = 80 ? C
maximum power
dissipation (chip + output
drivers)
maximum power
dissipation (output drivers
only)
maximum drive current
per channel
LQFP48
1590 mW
1460 mW
1460 mW
24 - bit ? 0.5 V
1030 mW
901 mW
901 mW
24 - bit ? 0.5 V
714 mW
585 mW
585 mW
24 - bit ? 0.5 V
HVQFN48
2780 mW
2650 mW
2650 mW
24 - bit ? 0.5 V
1810 mW
1680 mW
1680 mW
24 - bit ? 0.5 V
1250 mW
1120 mW
1120 mW
24 - bit ? 0.5 V
[1]
This value signifies package’s ability to handle more than 100 mA per output driver. The device’s maximum
current rating per output is 100 mA.
12. Thermal characteristics
Table 17.
Thermal characteristics
Symbol
Parameter
Conditions
Typ
Unit
R th(j-a)
R th(j-c)
thermal resistance from junction to ambient
thermal resistance from junction to case
LQFP48
HVQFN48
LQFP48
HVQFN48
[1]
[1]
[1]
[1]
63
36
18
14
? C/W
? C/W
? C/W
? C/W
[1]
Calculated in accordance with JESD 51-7.
PCA9626
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 6 September 2012
? NXP B.V. 2012. All rights reserved.
34 of 47
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