Datasheet

MAX4670
Integrated T1/E1/J1 Short-Haul and
Long-Haul Protection Switch
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
(All voltages referenced to GND.)
V+, IN_, SWITCH ......................................................-0.3V to +4V
COM_, NO_, NC_ (Note 1) ...........................-0.3V to (V+ + 0.3V)
Continuous Current
NO_, NC_, COM_ (Tx interface)..................................±150mA
NO_, NC_, COM_ (Rx interface) .................................±100mA
Peak Currents
NO_, NC_, COM_ (Tx interface)
(pulsed at 1ms, 10% duty cycle) ................................±300mA
NO_, NC_, COM_ (Rx interface)
(pulsed at 1ms, 10% duty cycle) ................................±200mA
Peak Surge Currents
Poised at 8µs ..................................................................21.4A
Poised at 20µs ................................................................11.9A
Continuous Power Dissipation (T
A
= +70°C)
32-Pin TQFN (derate 21.3mW/°C above +70°C) .......1702mW
38-Pin TSSOP (derate 13.7mW/°C above +70°C) .....1096mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
ELECTRICAL CHARACTERISTICS
(V+ = +2.7V to +3.6V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C, unless otherwise noted.) (Notes 2, 3)
PARAMETER
SYM B O L
CONDITIONS
MIN TYP MAX
UNITS
Rx INTERFACE
T
A
= +25°C59
On-Resistance R
ON
V+ = 3V, I
COM_
= 10mA,
V
NO_
or V
NC_
= 1.5V
T
A
= T
MIN
to T
MAX
10
Ω
T
A
= +25°C 1.0
On-Resistance Match Between
Channels (Note 4)
∆R
ON
V+ = 3V, I
COM_
= 10mA,
V
NO_
or V
NC_
= 1.5V
T
A
= T
MIN
to T
MAX
1.3
Ω
T
A
= +25°C 2.0 3.0
On-Resistance Flatness (Note 4)
R
FLAT
(
ON
)
V+ = 3V; I
COM_
= 10mA;
V
NO_
or V
NC_
= 1.0V,
1.5V, 2.0V
T
A
= T
MIN
to T
MAX
3.4
Ω
I
NO
(
OFF
)
NO_ or NC_ Off-Leakage
Current
I
NC
(
OFF
)
V + = 3.6V ; V
C OM _
= 0.3V , 3.3V ;
V
N O_
or V
N C _
= 3.3V , 0.3V
-1 +1 µA
COM_ On-Leakage Current
I
COM
(
ON
)
V+ = 3.6V; V
COM_
= 0.3V, 3.3V;
V
NO_
or V
NC_
= 3.3V, 0.3V or floating
-1 +1 µA
Tx INTERFACE
T
A
= +25°C 0.7 0.9
On-Resistance (Note 5) R
ON
V + = 3V , I
C OM _
= 100m A,
V
N O_
or V
N C _
= 1.5V
T
A
= T
MIN
to T
MAX
1.0
Ω
T
A
= +25°C
0.03 0.150
On-Resistance Match Between
Channels (Notes 3, 5)
∆R
ON
V + = 3V , I
C OM _
= 100m A,
V
N O_
or V
N C _
= 1.5V
T
A
= T
MIN
to T
MAX
0.175
Ω
T
A
= +25°C 0.1
0.18
On-Resistance Flatness
(Notes 5, 6)
R
FLAT
(
ON
)
V+ = 3V;
I
COM_
= 100mA;
V
NO_
or V
NC_
= 1.0V,
1.5V, 2.0V
T
A
= T
MIN
to T
MAX
0.2
Ω
Note 1: Signals on NO_, NC_, COM_ exceeding V+ or GND are clamped by internal diodes. Limit forward-diode current to maximum
current rating.