Datasheet
LTC4305
4305f
2
ABSOLUTE AXI U RATI GS
W
WW
U
(Note 1)
Supply Voltage (V
CC
) ................................... –0.3V to 7V
Input Voltages (ADR0, ADR1, ADR2,
ENABLE, ALERT1, ALERT2) .................... –0.3V to 7V
Output Voltages (ALERT, READY) ............... –0.3V to 7V
Input/Output Voltages (SDAIN, SCLIN,
SCL1, SDA1, SCL2, SDA2) ...................... –0.3V to 7V
Output Sink Current (SDAIN, SCLIN, SCL1,
SDA1, SCL2, SDA2, ALERT, READY) ............... 10mA
Operating Temperature Range
LTC4305C ............................................... 0°C to 70°C
LTC4305I............................................. –40°C to 85°C
Storage Temperature Range
DHD Package .................................... –65°C to 125°C
GN Package ....................................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
GN Package ...................................................... 300°C
ELECTRICAL CHARACTERISTICS
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.
PACKAGE/ORDER I FOR ATIO
UU
W
Consult LTC Marketing for parts specified with wider operating temperature ranges.
GN PART MARKING
4305
4305I
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marketing: http://www.linear.com/leadfree/
T
JMAX
= 125°C, θ
JA
= 135°C/W
1
2
3
4
5
6
7
8
TOP VIEW
GN PACKAGE
16-LEAD NARROW PLASTIC SSOP
16
15
14
13
12
11
10
9
ALERT2
ALERT
SDAIN
GND
SCLIN
ENABLE
V
CC
ADR0
SCL2
SDA2
ALERT1
SDA1
SCL1
READY
ADR2
ADR1
16
15
14
13
12
11
10
9
17
1
2
3
4
5
6
7
8
SCL2
SDA2
ALERT1
SDA1
SCL1
READY
ADR2
ADR1
ALERT2
ALERT
SDAIN
GND
SCLIN
ENABLE
V
CC
ADRO
TOP VIEW
DHD PACKAGE
16-LEAD (4mm × 5mm) PLASTIC DFN
EXPOSED PAD (PIN 17) PCB CONNECTION OPTIONAL
MUST BE CONNECTED TO PCB TO OBTAIN
θ
JA
= 43°C/W OTHERWISE θ
JA
= 140°C/W. T
JMAX
= 125°C
LTC4305CDHD
LTC4305IDHD
ORDER PART NUMBER DHD PART MARKING
4305
4305
LTC4305CGN
LTC4305IGN
ORDER PART NUMBER
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, V
CC
= 5.5V ● 5.2 8 mA
SCL Bus Low, SDA Bus High
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
V
UVLOHYST
UVLO Threshold Hysteresis Voltage ● 100 175 250 mV