AD8016ARE Analog Devices Inc, AD8016ARE Datasheet - Page 15

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AD8016ARE

Manufacturer Part Number
AD8016ARE
Description
IC AMP XDSL LINE DVR 28-TSSOP
Manufacturer
Analog Devices Inc
Type
Driverr
Datasheet

Specifications of AD8016ARE

Rohs Status
RoHS non-compliant
Number Of Drivers/receivers
2/0
Protocol
xDSL
Voltage - Supply
3 V ~ 13 V
Mounting Type
Surface Mount
Package / Case
28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
Power Supply Requirement
Dual
Package Type
TSSOP EP
Slew Rate
1000V/us
Pin Count
28
Lead Free Status / RoHS Status
Not Compliant

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EXPERIMENTAL RESULTS
The experimental data suggests that for both packages, and a
PCB as small as 4.7 square inches, reasonable junction tempera-
tures can be maintained even in the absence of air flow. The graph
in Figure 42 shows junction temperature versus air flow for various
dimensions of 1 oz. copper PCBs at an ambient temperature of
24°C in both the ARB and ARP packages. For the worst-case
package, the AD8016ARB and the worst-case PCB at 4.7 square
inches, the extrapolated junction temperature for an ambient
environment of 85°C would be approximately 132°C with 0 LFM
of air flow. If the target maximum junction temperature of the
AD8016ARB is 125°C, a 4-layer PCB with 1 oz. copper covering
the outer layers and measuring 9 square inches is required
with 0 LFM of air flow.
Note that the AD8016ARE is targeted at xDSL applications
other than full-rate CO ADSL. The AD8016ARE is targeted at
g.lite and other xDSL applications where reduced power dissi-
pation can be achieved through a reduction in output power.
Extreme temperatures associated with full-rate ADSL using the
AD8016ARE should be avoided whenever possible.
REV. B
Figure 42. Junction Temperature vs. Air Flow
75
70
65
60
55
50
45
40
0
ARP 4.7 SQ-IN
ARB 4.7 SQ-IN
ARB 7.125 SQ-IN
ARP 9 SQ-IN
50
ARP 6 SQ-IN
ARB 6 SQ-IN
AIR FLOW (LFM)
100
ARP 12 SQ-IN
ARB 9 SQ-IN
+24 C AMBIENT
150
200
–15–
Figure 43. Junction-to-Ambient Thermal Resistance vs.
PCB Area
Figure 44. Junction-to-Ambient Thermal Resistance vs.
PCB Area
45
35
50
40
30
25
20
15
10
35
30
25
20
15
10
0
4
1
ARP 0 LFM
ARB 0 LFM
2
ARP 50 LFM
3
PCB AREA (SQ-IN)
PCB AREA (SQ-IN)
7
4
ARB 50 LFM
ARB 150 LFM
ARP 150 LFM
ARE 0 LFM
ARE 200 LFM
5
ARP 100 LFM
ARB 100 LFM
ARE 400 LFM
6
7
10
ARB 200 LFM
ARP 200 LFM
8
AD8016
9
10

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