LX7710
125V Octal Series Diode Pairs Array with
Redundancy
Description
The LX7710 is a diode array that features high
breakdown voltage diodes with ESD protection and
built-in redundancy. The array contains 8 series
connected diode pairs, and is intended for power
ORing applications. The series connected diodes are
intended to be redundant should one of the diodes fail
in a short circuit. Individual diodes within the array
have 125V working voltage and can handle up to
700mA of continuous current. ESD protection is also
included; the two series ESD diodes have a working
voltage of 100V each for a total of 200V. The LX7710
is available in a 20 pin ceramic SOIC package and is
QML-V and QML-Q certified.
Features
125V Minimum Breakdown Voltage Even If
One Diode in Any String Happens to Fail
(redundant)
700mA Current Capability per Diode
Low Leakage Current
ESD Protected
Rad-tolerant to a Minimum 100krad(Si) TID
and SEL Immunity to a Minimum of 87MeV
cm
2
/mg
Applications
Power ORing
Redundant Power Sourcing
Aerospace Satellite Manufacturers
Military Power Electronics Control
VS1
1
VS2
AAHS298B
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
12
13
14
15
16
17
18
19
20
10
9
8
7
6
5
4
3
2
11
12
13
14
15
16
17
18
19
20
10
9
8
7
6
5
4
3
2
2
3
4
5
6
7
8
9
10
SEL_CH1_VS1
SEL_CH2_VS1
SEL_CH3_VS1
SEL_CH4_VS1
SEL_CH5_VS1
SEL_CH6_VS1
SEL_CH7_VS1
SEL_CH8_VS1
VS1
SEL_CH1_VS2
SEL_CH2_VS2
SEL_CH3_VS2
SEL_CH4_VS2
SEL_CH5_VS2
SEL_CH6_VS2
SEL_CH7_VS2
SEL_CH8_VS2
VS2
LX7710
11
LX7710
CH1 Power Bus
CH2 Power Bus
CH3 Power Bus
CH4 Power Bus
CH5 Power Bus
CH6 Power Bus
CH7 Power Bus
CH8 Power Bus
1
AAHS298B
1
Figure 1 ·
Product Highlight of Redundant Switchable Power Bus
December 2016 Rev. 1.2
© 2016 Microsemi Corporation
www.microsemi.com
1
125V Octal Series Diode Pairs Array with Redundancy
Pin Configuration and Pinout
GND
1A
2A
3A
4A
5A
6A
7A
8A
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
GND
1K
2K
3K
4K
5K
6K
7K
8K
GND
Figure 2 ·
LX7710 Pinout
Ordering Information
Junction
Temperature
Type
Package
Part Number
Flow
Engineering
samples
QML-Q
Tray
Packaging
Type
LX7710MDWC-ES
Flat
Hermetic
LX7710MDWC-Q
CSOIC 20L
SMD 5962-1621001QXC
LX7710MDWC-V
SMD 5962-1621001VXC
-55°C to 150°C
QML-V
Pin Description
Pin Number
1
2
3
4
5
6
7
8
Pin Designator
GND
1A
2A
3A
4A
5A
6A
7A
Description
This power input pin connects to GND.
This power input pin connects to the anode of the diode for channel 1.
This power input pin connects to the anode of the diode for channel 2.
This power input pin connects to the anode of the diode for channel 3.
This power input pin connects to the anode of the diode for channel 4.
This power input pin connects to the anode of the diode for channel 5.
This power input pin connects to the anode of the diode for channel 6.
This power input pin connects to the anode of the diode for channel 7.
2
LX7710 rev 1.2
Pin Number
9
10
11
12
13
14
15
16
17
18
19
20
Pin Designator
8A
GND
GND
8K
7K
6K
5K
4K
3K
2K
1K
GND
Description
This power input pin connects to the anode of the diode for channel 8.
This power input pin connects to GND.
This power input pin connects to GND.
This power input pin connects to the cathode of the diode for channel 8.
This power input pin connects to the cathode of the diode for channel 7.
This power input pin connects to the cathode of the diode for channel 6.
This power input pin connects to the cathode of the diode for channel 5.
This power input pin connects to the cathode of the diode for channel 4.
This power input pin connects to the cathode of the diode for channel 3.
This power input pin connects to the cathode of the diode for channel 2.
This power input pin connects to the cathode of the diode for channel 1.
This power input pin connects to GND.
LX7710 Rev 1.2
3
125V Octal Series Diode Pairs Array with Redundancy
Block Diagram
GND
1A
2A
3A
4A
5A
6A
7A
8A
GND
1
20
GND
1K
2K
3K
4K
5K
6K
7K
8K
GND
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
Figure 3 ·
Top Level Block Diagram of LX7710
Two Zener diodes in series provide redundant ESD protection. They are capable of up to 1A
forward current and are suitable for suppressing inductive kickback.
Absolute Maximum Ratings
Note:
Stresses above those listed in “ABSOLUTE MAXIMUM RATINGS”, may cause permanent
damage to the device. This is a stress only rating and operation of the device at these or any
other conditions above those indicated in the operational sections of this specification is not
implied. Exceeding these ratings, even momentarily, can cause immediate damage, or
negatively impact long-term operating reliability.
Parameter
Reverse Voltage per Diode
Reverse Current (into K pin or out of GND pin)
Continuous Forward Current
Storage Temperature Range
Operating Junction Temperature Range
Peak Lead Solder Temperature (10 seconds)
Package Peak Temperature for Solder Reflow (40
seconds maximum exposure)
-65
-55
Min
Max
140
100
1
150
150
300
260 (+0, -5)
Units
V
µA
A
°C
°C
°C
°C
4
LX7710 rev 1.2
Thermal Properties
Thermal Properties
Thermal Resistance
Thermal Resistance-Junction to Case, θ
JC
Typ
3
Units
°C/W
Note:
The θ
JC
number is for conduction only to the ceramic base of the package. It assumes that the ceramic base has a
thermal epoxy underneath the ceramic package to exhaust the heat from the package into the PCB, or other mounting
surface.
Electrical Characteristics
Unless otherwise noted, these specifications apply -55C
T
A
+125C.
Low duty cycle pulse
testing is used which keeps junction and case temperatures equal to the ambient temperature.
Symbol
Parameter
Reverse Breakdown
Reverse Breakdown
ESD Breakdown
Test Condition
I
R
= 10µA; GND to anode
I
R
= 10µA; K to A
Note:1
Min
125
125
125
1.49
1.65
1.80
1.64
1.91
1.54
1.74
1.92
1.76
2.07
1.61
1.86
2.08
1.84
2.24
100
50
10
15
30
nA
µA
pF
V
V
Typ
Max
Units
V
BR_G-A
V
BR_K-A
V
BR_A-G
I
R
= 10µA; anode to GND
Note:1
I
F
= 100mA
I
F
= 350mA
V
FWD_A-K
Forward Voltage
I
F
= 700mA
I
F
= 700mA at 125°C
I
F
= 700mA at -55C
I
R
C
Reverse Current
V
R
= 75V at -55C and 25C;
GND to A
V
R
= 75V at 125°C; GND to A
Capacitance
V
R
= 0V at f = 1MHz; K to A
Note: 1 These are go/no-go tests.
LX7710 Rev 1.2
5
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