HI-1567CDT HOLTIC [Holt Integrated Circuits], HI-1567CDT Datasheet - Page 6

• Manufacturer Part Number: HI-1567CDT
• Description: 5V Monolithic Dual Transceivers
• Manufacturer: HOLTIC [Holt Integrated Circuits]

RADIATION TOLERANCE
The HI-1567 has been characterized for total dose
radiation performance in accordance with MIL-STD-883
method 1019. The part meets all data sheet parameters
after exposure to 25 KRad(Si).
HEAT SINK - ESOIC & CHIP-SCALE PACKAGE
Both the HI-1567PSI/T/M and HI-1568PSI/T/M use a
20-pin thermally enhanced SOIC package. The
HI-1567PCI/T and HI-1568PCI/T use a plastic chip-scale
package. These packages include a metal heat sink
located on the bottom surface of the device. This heat
THERMAL CHARACTERISTICS
TXINHA/B
Data taken at VDD=5.0V, continuous transmission at 1Mbit/s, single transmitter enabled.
35
HI-1567PSI / T / M
HI-1568PSI / T / M
HI-1567CDI / T / M
HI-1568CDI / T / M
HI-1567PCI / T
HI-1568PCI / T
PART NUMBER
TXA/B
TXA/B
W
(.5 Zo)
TRANSMITTER
(.75 Zo)
(.75 Zo)
52.5
52.5
Figure 3. Transformer Coupled Test Circuits
44-pin Plastic chip-
PACKAGE STYLE
enhanced plastic
20-pin Thermally
side-brazed DIP
20-pin Ceramic
SOIC (ESOIC)
scale package
W
W
BUSA/B
BUSA/B
Transformer
Coupling
HOLT INTEGRATED CIRCUITS
1.4:1
HI-1567, HI-1568
Transformer
Isolation
CONDITION
1:1.79
unsoldered
unsoldered
Heat sink
Heat sink
Socketed
Heat sink
soldered
Point
“A ”
T
Transformer
6
Isolation
sink should be soldered down to the printed circuit board
for optimum thermal dissipation.
electrically isolated and may be soldered to any
convenient power or ground plane..
APPLICATIONS NOTE
Holt Applications Note AN-500 provides circuit design
notes regarding the use of Holt's family of MIL-STD-1553
transceivers. Layout considerations, as well as
recommended interface and protection components are
included.
1.79:1
Point
“A ”
T
Transformer
54°C/W
47°C/W
62°C/W
49°C/W
Coupling
1:1.4
Ø
JA
RXENA/B
T
JUNCTION TEMPERATURE
A
62°C
57°C
69°C
59°C
=25°C
RECEIVER
(.75 Zo)
(.75 Zo)
52.5
52.5
W
W
T
122°C
117°C
129°C
119°C
A
=85°C T
35
The heat sink is
RXA/B
RXA/B
W
A
162°C
157°C
169°C
159°C
=125°C
(.5 Zo)