LTC4309C ................................................ 0°C to 70°C
LTC4309I.............................................. –40°C to 85°C
Storage Temperature Range (DE)........... –65°C to 125°C
Storage Temperature Range (GN) .......... –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
GN Package ...................................................... 300°C
PIN CONFIGURATION
TOP VIEW
ENABLE
DISCEN
SCLOUT
SCLIN
ACC
GND
1
2
3
4
5
6
13
12 V
CC
11 V
CC2
10 SDAOUT
9
8
7
SDAIN
FAULT
READY
ENABLE
NC
DISCEN
SCLOUT
SCLIN
ACC
NC
GND
1
2
3
4
5
6
7
8
TOP VIEW
16 V
CC
15 NC
14 V
CC2
13 SDAOUT
12 SDAIN
11 FAULT
10 NC
9
READY
DE12 PACKAGE
12-LEAD (4mm
×
3mm) PLASTIC DFN
T
JMAX
= 125°C,
θ
JA
= 43°C/W
EXPOSED PAD (PIN 13) PCB CONNECTION TO GND IS OPTIONAL
GN PACKAGE
16-LEAD NARROW PLASTIC SSOP
T
JMAX
= 150°C,
θ
JA
= 110°C/W
ORDER INFORMATION
LEAD FREE FINISH
LTC4309CDE#PBF
LTC4309IDE#PBF
LTC4309CGN#PBF
LTC4309IGN#PBF
TAPE AND REEL
LTC4309CDE#TRPBF
LTC4309IDE#TRPBF
LTC4309CGN#TRPBF
LTC4309IGN#TRPBF
PART MARKING*
4309
4309
4309
4309I
PACKAGE DESCRIPTION
12-Lead (4mm
×
3mm) Plastic DFN
12-Lead (4mm
×
3mm) Plastic DFN
16-Lead Plastic SSOP
16-Lead Plastic SSOP
TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to:
http://www.linear.com/tapeandreel/
4309fa
2
LTC4309
ELECTRICAL CHARACTERISTICS
SYMBOL
V
CC
V
CC2
I
CC
I
SD
I
CC2
I
SD2
t
PHL
t
PLH
t
RISE
t
FALL
I
PULLUPAC
V
PRE
t
IDLE
V
THR_EN
V
THR_CTRL
I
CTRL
t
PLH_EN
t
PHL_EN
t
PLH_READY
t
PHL_READY
V
OL_READY
I
OFF_READY
f
I2C, MAX
t
BUF
t
HD, STA
t
SU, STA
t
SU, STO
t
HD, DATI
t
SU, DAT
V
OS
V
THR
PARAMETER
Positive Supply Voltage
Input Side Accelerator Supply Voltage
V
CC
Input Supply Current Enabled
V
CC
Input Supply Current Disabled
V
CC2
Input Supply Current Enabled
V
CC2
Input Supply Current Disabled
SDA/SCL Propagation Delay High to Low
SDA/SCL Propagation Delay Low to High
SDA/SCL Rise Time
SDA/SCL Fall Time
Transient Boosted Pull-up Current
Precharge Voltage
Bus Idle Time
ENABLE Threshold Voltage
ACC,
DISCEN Threshold Voltage
ENABLE,
ACC,
DISCEN Input Currents
ENABLE Delay Off-On
ENABLE Delay On-Off
READY Delay On-Off
READY Delay Off-On
READY Output Low Voltage
READY Off Leakage Current
I
2
C Maximum Operating Frequency
Bus Free Time Between Stop and Start
Condition
Hold Time After (Repeated)
Start Condition
Repeated Start Condition Set-Up Time
Stop Condition Set-Up Time
Data Hold Time Input
Data Set-Up Time
Input-Output Offset Voltage
SDA, SCL Logic Input Threshold Voltage
ENABLE,
ACC,
DISCEN from 0 to V
CC
(Figure 1)
(Note 3), (Figure 1)
(Note 3), (Figure 1)
(Note 3), (Figure 1)
I
READY
= 3mA, V
CC
= 2.3V
V
CC
= READY = 5.5V
(Note 3)
(Note 3)
(Note 3)
(Note 3)
(Note 3)
(Note 3)
(Note 3)
2.7k to V
CC2
on SDA, SCL, Driven SDA, SCL = 0.2V
V
CC
≥ 2.9V
V
CC
< 2.9V
l
l
l
l
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 3.3V, V
CC2
= 3.3V, unless otherwise noted.
CONDITIONS
l
l
l
l
l
l
MIN TYP MAX UNITS
2.3
1.8
7
190
140
85
10
30
30
5
l
l
l
5.5
5.5
11
250
180
900 1400
V
V
mA
μA
μA
μA
ns
ns
V
CC
= V
CC2
= 5.5V, V
SDAIN
= V
SCLIN
= 0V (Note 2)
V
CC
= V
CC2
= 5.5V, SDA = SCL = 5.5V, ENABLE = OV
V
CC
= V
CC2
= 5.5V, V
SDAIN
= V
SCLIN
= 0V (Note 2)
V
CC
= V
CC2
= 5.5V, SDA = SCL = 5.5V, ENABLE = OV
C
LOAD
= 50pF 2.7k to V
CC
on SDA, SCL, (Note 3, 4), (Figure 1)
,
C
LOAD
= 50pF 2.7k to V
CC
on SDA, SCL, (Note 3, 4), (Figure 1)
,
C
LOAD
= 100pF 10k to V
CC
on SDA, SCL, V
CC
= 5V V
CC2
= 5V,
,
(Note 3, 5), (Figure 1)
C
LOAD
= 100pF 10k to V
CC
on SDA, SCL, V
CC
= 5V (Note 3, 5),
,
(Figure 1)
Positive Transition > 0.8V/μS on SDA, SCL, V
CC
= 3.3V (Note 7)
SDA, SCL Open
ENABLE Rising Edge
(Note 3)
Propagation Delay and Rise Time Accelerators
300
300
ns
ns
mA
8
1.0
95
1.4
100
0.7
0.1
95
10
10
10
0.4
0.1
±5
1.2
175
2
1
±5
Start-Up Circuitry
0.8
55
0.8
0.5
V
μs
V
mV
V
μA
μs
ns
ns
ns
V
μA
kHz
1.3
100
0
0
0
100
20
1.4
1.1
60
1.65
1.35
100
1.9
1.6
μs
ns
ns
ns
ns
ns
mV
V
V
V
THR_EN(HYST)
ENABLE Threshold Voltage Hysteresis
Timing Characteristics
400
600
Input-Output Connection
4309fa
3
LTC4309
ELECTRICAL CHARACTERISTICS
SYMBOL
V
THR(HYST)
C
IN
I
LEAK
V
OL
PARAMETER
SDA, SCL Logic Input Threshold Voltage
Hysteresis
Digital Input Capacitance SDAIN,
SDAOUT, SCLIN, SCLOUT
Input Leakage Current
Output Low Voltage
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 3.3V, V
CC2
= 3.3V, unless otherwise noted.
CONDITIONS
(Note 3)
(Note 3)
SDA, SCL,
ACC,
DISCEN Pins
SDA, SCL Pins, I
SINK
= 4mA, Driven SDA/SCL = 0.2V, V
CC
=
V
CC2
= 2.7V
2.7k to V
CC
on SDA, SCL, Driven SDA/SCL = 0.1V,
V
CC
= V
CC2
= 3.3V
l
l
l
l
l
l
l
MIN TYP MAX UNITS
50
10
±5
0
120
170
0.4
205
1.2
25
30
0.1
35
0.4
±5
mV
pF
μA
V
mV
V
ms
V
μA
V
ILMAX
t
TIMEOUT
V
OL_FAULT
I
OFF_FAULT
Buffer Input Logic Low Voltage
Bus Stuck Low Timer
FAULT
Output Low Voltage
FAULT
Off Leakage Current
SDAOUT, SCLOUT = OV
I
FAULT
= 3mA
Bus Stuck Low Timeout
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2:
Test performed with connection circuity active.
Note 3:
Determined by design, not subject to test.
Note 4:
For larger equivalent bus capacitance, the skew increases, and
setup and hold times must be adjusted accordingly. Please see the
Operation Section of the datasheet.
Note 5:
Measure points are 0.3 • V
CC
and 0.7 • V
CC
.
Note 6:
All currents into pins are positive, all voltages are referenced to
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