Datasheet
LTC4306
4306f
2
(Note 1)
Supply Voltage (V
CC
) ................................... –0.3V to 7V
Input Voltages (ADR0, ADR1, ADR2,
ENABLE, ALERT1, ALERT2, ALERT3,
ALERT4) .................................................. –0.3V to 7V
Output Voltages (ALERT, READY) ............... –0.3V to 7V
Input/Output Voltages (SDAIN, SCLIN,
SCL1, SDA1, SCL2, SDA2, SCL3,
SDA3, SCL4, SDA4, GPIO1, GPIO2) ........ –0.3V to 7V
Output Sink Currents (SDAIN, SCLIN, SCL1-4, SDA1-4,
GPI01-2, ALERT, READY) ..................................... 10mA
Operating Temperature Range
LTC4306C ............................................... 0°C to 70°C
LTC4306I............................................. –40°C to 85°C
Storage Temperature Range
SSOP ................................................. –65°C to 150°C
QFN ................................................... –65°C to 125°C
Lead Temperature (Soldering, 10 sec)
SSOP ................................................................ 300°C
ORDER PART
NUMBER
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
LTC4306CUFD
LTC4306IUFD
EXPOSED PAD (PIN 25), PCB CONNECTION OPTIONAL
MUST BE CONNECTED TO THE PCB TO OBTAIN
θ
JA
= 43°C/W OTHERWISE θ
JA
= 140°C/W. T
JMAX
= 125°C
UF PART MARKING*
4306
PACKAGE/ORDER I FOR ATIO
UU
W
ORDER PART
NUMBER
LTC4306CGN
LTC4306IGN
T
JMAX
= 125°C, θ
JA
= 85°C/W
1
2
3
4
5
6
7
8
9
10
11
12
TOP VIEW
GN PACKAGE
24-LEAD PLASTIC SSOP
24
23
22
21
20
19
18
17
16
15
14
13
SCL3
SDA3
ALERT
SDAIN
GND
SCLIN
ENABLE
V
CC
ALERT4
GPI01
GPI02
ADR0
ALERT2
SCL2
SDA2
ALERT3
ALERT1
SDA1
SCL1
SCL4
SDA4
READY
ADR2
ADR1
8 9
TOP VIEW
25
UFD PACKAGE
24-LEAD (4mm × 5mm) PLASTIC QFN
10 11 12
24 23 22 21 20
6
5
4
3
2
1
ALERT
SDAIN
GND
SCLIN
ENABLE
V
CC
ALERT4
ALERT3
ALERT1
SDA1
SCL1
SCL4
SDA4
READY
SDA3
SCL3
ALERT2
SCL2
SDA2
GPIO1
GPI02
ADR0
ADR1
ADR2
7
14
15
16
17
18
19
13
ABSOLUTE AXI U RATI GS
WWWU
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
The ● denotes specifications which apply over the full specified temperature
range, otherwise specifications are at T
A
= 25°C. V
CC
= 3.3V unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Power Supply/Start-Up
V
CC
Input Supply Range ● 2.7 5.5 V
I
CC
Input Supply Current Downstream Connected, SCL Bus Low, ● 5.2 8 mA
SDA Bus High, V
CC
= 5.5V
I
CC ENABLE
=
0V Input Supply Current V
ENABLE
= 0V, V
CC
= 5.5V ● 1.25 2.5 mA
V
UVLOU
UVLO Upper Threshold Voltage ● 2.3 2.5 2.7 V
ELECTRICAL CHARACTERISTICS