TH3122KDF MELEXIS [Melexis Microelectronic Systems], TH3122KDF Datasheet - Page 7

• Manufacturer Part Number: TH3122KDF
• Description: K-Bus Transceiver with integrated Voltage Regulator
• Manufacturer: MELEXIS [Melexis Microelectronic Systems]

Electrical Specification
All voltages are referenced to ground (GND). Positive
currents flow into the IC. The absolute maximum ratings
given in the table below are limiting values that do not
lead to a permanent damage of the device but exceeding
Operating Conditions
Absolute Maximum Ratings
______________________________
[1]
[2]
[3]
[4]
3901003122
Rev 004
Parameter
Battery voltage
Supply voltage
Operating ambient temperature
Junction temperature
Parameter
Supply voltage at VS
Input voltage at pin BUS
Difference VS-VCC
Input voltage at pin EN and SI
Input voltage at pin VTR, TxD, SEN/STA, SO, RESET, SENSE
Input current at pin EN, VTR, SI, SO, SEN/STA, TxD,
RxD,RESET, SENSE
Input current for short circuit of pin VS and VCC
Power dissipation
Thermal resistance from junction to ambient
Junction temperature
Storage temperature
Junction temperature is defined in IEC 747-1
The current and voltage values are valid independent from each other.
The maximum power dissipation is defined by the ambient temperature and the thermal resistance. It can be calculated with
see over temperature protection
P
0
=(V
S
-V
CC
)*I
VCC
+P
BUS
[2]
[1]
[4]
. P
[2]
BUS
is the BUS driver output with normally 25 mW
K-Bus Transceiver with integrated Voltage Regulator
Page 7
any of these limits may do so. Long term exposure to
limiting values may affect the reliability of the device.
Reliable operation of the TH3122 is only specified within
the limits shown in ”Operating conditions”.
Symbol
Symbol
V
V
V
V
V
T
T
R
T
I
CC
INENSI
S
A
INBUS
S-VCC
V
Short
J
V
I
P
THJA
T
STG
IN
IN
S
0
J
T
T
Condition
T
500 ms
500 ms
1min
5.25
4.75
Min
-40
Internal limited
-500
Min
-1.0
-0.3
-0.3
-0.3
-24
-25
-55
-
-
-
+125
+150
Max
5.25
16
[3] [4]
TH3122
V
V
CC
Max
S
500
150
150
16
30
40
30
40
40
25
50
+0.3
+0.3
Unit
°C
°C
V
V
Dec/04
Unit
K/W
mW
mA
mA
°C
°C
V
V
V
V
V