LTC1694-1CS5 Linear Technology, LTC1694-1CS5 Datasheet - Page 2

• Manufacturer Part Number: LTC1694-1CS5
• Description: SMBus/I2C Accelerator
• Manufacturer: Linear Technology

ABSOLUTE
LTC1694-1
(Note 1)
Supply Voltage (V
SMBus1, SMBus2 Inputs ............ – 0.3V to (V
Operating Ambient Temperature Range ....... 0 C to 70 C
Junction Temperature ........................................... 125 C
Storage Temperature Range ................. – 65 C to 150 C
Lead Temperature (Soldering, 10 sec.)................. 300 C
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
SYMBOL
V
I
I
V
SR
t
f
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The rise time of an SMBus line is calculated from (V
0.15V) to (V
guaranteed by design and not tested. With a minimum initial slew rate of
0.5V/ s, a minimum pull-up current of 1mA and a maximum input
threshold voltage of 0.9V:
2
CC
PULL-UP
r
MAX
CC
THRES
THRES
Rise Time = [(0.9V – 0.65V)/0.5V/ s] + [(2.25V – 0.9V) • 200pF/1mA]
IH(MIN)
= 0.77 s
PARAMETER
Supply Voltage Range
Supply Current
Pull-Up Current
Input Threshold Voltage
Slew Rate Detector Threshold
SMBus Rise Time
Standard Mode I
SMBus Maximum Operating Frequency
+ 0.15V) or 0.65V to 2.25V. This parameter is
CC
W
MAXIMUM
) ................................................. 7V
2
C Bus Rise Time
W W
RATINGS
U
IL(MAX)
A
CC
= 25 C. V
CONDITIONS
SMBus1 = SMBus2 = V
Positive Transition on SMBus ( Figure 1)
Slew Rate = 0.5V/ s, SMBus > V
Slew Rate = 0.5V/ s (Figure 1)
SMBus > V
Bus Capacitance = 200pF (Note 2)
Bus Capacitance = 400pF (Note 3)
(Note 4)
+ 0.3V)
–
The
CC
THRES
denotes specifications which apply over the full operating
= 2.7V to 6V, unless otherwise noted.
PACKAGE/ORDER
Consult factory for Industrial and Military grade parts.
Note 3: The rise time of an I
V
design and not tested. With a minimum boosted pull-up current of 1mA:
Note 4: This parameter is guaranteed by design and not tested.
IH(MIN)
Rise Time = (3V – 1.5V) • 400pF/1mA = 0.6 s
GND 2
V
CC
NC 3
T
CC
JMAX
or 1.5V to 3V (with V
5-LEAD PLASTIC SOT-23
1
= 125 C,
S5 PACKAGE
THRES
TOP VIEW
JA
= 256 C/ W
2
C bus line is calculated from V
CC
5 SMBus1
4 SMBus2
= 5V). This parameter is guaranteed by
MIN
2.7
1.0
0.4
15
INFORMATION
U
0.65
0.32
0.30
TYP
S5 PART MARKING
2.2
0.2
45
LTC1694-1CS5
ORDER PART
NUMBER
W
LTHE
MAX
100
0.9
0.5
1.0
1.0
80
6
IL(MAX)
to
UNITS
U
V/ s
kHz
mA
V
A
V
s
s