Micrel, Inc.
SY89297U
Absolute Maximum Ratings
(1)
Supply Voltage (V
CC
) .................................. –0.5V to +4.0V
Input Voltage (V
IN
) .......................................... –0.5V to V
CC
CML Output Voltage (V
OUT
)… ....... V
CC
−1.0V
to V
CC
+0.5V
Current (V
T
)
Source or Sink Current on VT pin..................... ±70mA
Input Current
Source or Sink Current on (IN, /IN) .................. ±35mA
Current (V
REF
)
Source or sink current on V
REF-AC(2)
................ .±0.5mA
Maximum operating Junction Temperature ............ 125°C
Lead Temperature (soldering, 20sec.) ..................... 260°C
Storage Temperature (T
s
) ....................... –65°C to +150°C
Operating Ratings
(3)
Supply Voltage (V
CC
)
T
A
(−40°C to
+85°C)
................ +2.375V to +2.625V
T
A
(−40°C to
+75°C)
.......................... +3.0V to 3.6V
Ambient Temperature (T
A
) ..........................
−40°C
to +85°C
Package Thermal Resistance
(4)
QFN
(θ
JA
)
Still-Air ............................................................... 43°C/W
QFN
(ψ
JB
)
Junction-to-Board ........................................... 30.5°C/W
DC Electrical Characteristics
(5)
T
A
=
−40°C
to +85°C, Channels A and B, unless otherwise stated.
Symbol
Parameter
Condition
T
A
:
−40°C
to +85°C
V
CC
Power Supply Voltage Range
T
A
:
−40°C
to +75°C
T
A
:
−40°C
to +85°C,
Airflow = 500 LFPM
I
CC
R
IN
R
DIFF_IN
V
IH
V
IL
V
IN
V
DIFF_IN
V
REF-AC
V
T_IN
Notes:
1. Permanent device damage may occur if “Absolute Maximum Ratings” are exceeded. This is a stress rating only and functional operation is not
implied at conditions other than those detailed in the operational sections of this data sheet. Exposure to “Absolute Maximum Rating” conditions for
extended periods may affect device reliability.
2. Due to the limited drive capability, use for input of the same package only.
3. The data sheet limits are not guaranteed if the device is operated beyond the operating ratings.
4. Thermal performance on QFN packages assumes exposed pad is soldered (or equivalent) to the device most negative potential (GND).
5. The circuit is designed to meet the DC specifications shown in the table after thermal equilibrium has been established.
Min.
2.375
3.0
3.0
Typ.
2.5
3.3
3.3
195
Max.
2.625
3.6
3.6
250
55
110
V
CC
V
IH
–0.1
1.0
Units
V
V
V
mA
Ω
Ω
V
V
V
V
Power Supply Current
Input Resistance
(IN-to-VT, /IN-to-VT)
Differential Input Resistance
(IN-to-/IN)
Input HIGH Voltage (IN, /IN)
Input LOW Voltage (IN, /IN)
Input Voltage Swing (IN, /IN)
Differential Input Voltage Swing
(|IN - /IN|)
Output Reference Voltage
Voltage from Input to V
T
Maximum V
CC
, Both Channels
Combined, Output Load Included
45
90
1.2
0
See Figure 5a
See Figure 5b
0.1
0.2
V
CC
–1.3
50
100
V
CC
–1.2
V
CC
–1.1
1.28
V
V
December 2011
5
M9999-120211-C
hbwhelp@micrel.com
or (408) 955-1690
MICREL [ MICREL SEMICONDUCTOR ]
