Datasheet

LTC4300A-1/LTC4300A-2
3
4300a12fa
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 2.7V to 5.5V, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
t
PHL
ENABLE Delay, On-Off LTC4300A-1 10 ns
READY Delay, Off-On LTC4300A-1 10 ns
t
PLH
ENABLE Delay, Off-On LTC4300A-1 95 μs
READY Delay, On-Off LTC4300A-1 10 ns
I
OFF
READY OFF State Leakage Current LTC4300A-1 ±0.1 μA
V
OL
READY Output Low Voltage I
PULLUP
= 3mA, LTC4300A-1
l
0.4 V
Rise-Time Accelerators
I
PULLUPAC
Transient Boosted Pull-Up Current Positive Transition on SDA,SCL, V
CC
= 2.7V,
Slew Rate = 1.25V/μs (Note 2),
LTC4300A-2, ACC = 0.7 • V
CC2
, V
CC2
= 2.7V
12 mA
V
ACCDIS
Accelerator Disable Threshold LTC4300A-2 0.3 • V
CC2
0.5 • V
CC2
V
V
ACCEN
Accelerator Enable Threshold LTC4300A-2 0.5 • V
CC2
0.7 • V
CC2
V
I
VACC
ACC Input Current LTC4300A-2 ± 0.1 ±1 μA
t
PDOFF
ACC Delay, On/Off LTC4300A-2 5 ns
Input-Output Connection
V
OS
Input-Output Offset Voltage 10k to V
CC
on SDA, SCL, V
CC
= 3.3V (Note 3),
LTC4300A-2, V
CC2
= 3.3V, V
IN
= 0.2V
l
0 100 175 mV
f
SCL, SDA
Operating Frequency Guaranteed by Design, Not Subject to Test 0 400 kHz
C
IN
Digital Input Capacitance Guaranteed by Design, Not Subject to Test 10 pF
V
OL
Output Low Voltage, Input = 0V SDA, SCL Pins, I
SINK
= 3mA, V
CC
= 2.7V,
V
CC2
= 2.7V, LTC4300A-2
l
0 0.4 V
I
LEAK
Input Leakage Current SDA, SCL Pins = V
CC
= 5.5V,
LTC4300A-2, V
CC2
= 5.5V
±5 μA
Timing Characteristics
f
I2C
I
2
C Operating Frequency (Note 4) 0 400 kHz
t
BUF
Bus Free Time Between Stop
and Start Condition
(Note 4) 1.3 μs
t
hD,STA
Hold Time After (Repeated)
Start Condition
(Note 4) 0.6 μs
t
su,STA
Repeated Start Condition Setup Time (Note 4) 0.6 μs
t
su,STO
Stop Condition Setup Time (Note 4) 0.6 μs
t
hD, DAT
Data Hold Time (Note 4) 300 ns
t
su, DAT
Data Setup Time (Note 4) 100 ns
t
LOW
Clock Low Period (Note 4) 1.3 μs
t
HIGH
Clock High Period (Note 4) 0.6 μs
t
f
Clock, Data Fall Time (Notes 4, 5) 20 + 0.1 • C
B
300 ns
t
r
Clock, Data Rise Time (Notes 4, 5) 20 + 0.1 • C
B
300 ns
t
PHL,SKEW
High-to-Low Propagation Delay
Skew, SCL-SDA
LTC4300A-1: V
CC
= 2.7V; V
CC
= 5.5V (Note 6)
l
0 ±75 ns
LTC4300A-2: V
CC
= 2.7V, V
CC2
= 5.5V;
V
CC
= 5.5V; V
CC2
= 2.7V (Note 6)
l
0 ±75 ns