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MAX16050 Evaluation Kit
Table 6. MAX16050 Sequencing Control (JU4, JU5, JU6) (continued)
SHUNT POSITION
SEQUENCE ORDER
JU4
2-3
2-3
2-3
2-3
2-3
2-3
2-3
2-3
2-3
1-2
1-2
1-2
1-2
1-2
1-2
JU5
Not installed
Not installed
Not installed
2-3
2-3
2-3
1-2
1-2
1-2
Not installed
Not installed
Not installed
2-3
2-3
2-3
JU6
Not installed
2-3
1-2
Not installed
2-3
1-2
Not installed
2-3
1-2
Not installed
2-3
1-2
Not installed
2-3
1-2
1ST
U1_OUT2
U1_OUT2
U1_OUT2
U1_OUT3
U1_OUT3
U1_OUT3
U1_OUT3
U1_OUT3
U1_OUT3
U1_OUT4
U1_OUT4
U1_OUT4
U1_OUT4
U1_OUT4
U1_OUT4
2ND
U1_OUT3
U1_OUT4
U1_OUT4
U1_OUT1
U1_OUT1
U1_OUT2
U1_OUT2
U1_OUT4
U1_OUT4
U1_OUT1
U1_OUT1
U1_OUT2
U1_OUT2
U1_OUT3
U1_OUT3
3RD
U1_OUT4
U1_OUT1
U1_OUT3
U1_OUT2
U1_OUT4
U1_OUT1
U1_OUT4
U1_OUT1
U1_OUT2
U1_OUT2
U1_OUT3
U1_OUT1
U1_OUT3
U1_OUT1
U1_OUT2
4TH
U1_OUT1
U1_OUT3
U1_OUT1
U1_OUT4
U1_OUT2
U1_OUT4
U1_OUT1
U1_OUT2
U1_OUT1
U1_OUT3
U1_OUT2
U1_OUT3
U1_OUT1
U1_OUT2
U1_OUT1
EN_HOLD (JU7, JU15)
Jumpers JU7 and JU15 configuration setting allows the
MAX16050 and MAX16051 to ignore high-to-low transi-
tions at the EN and SHDN inputs. Place a shunt across
pins 1-2 for normal operation of the EN and SHDN fea-
level at pin 1 of jumpers JU8 or JU14. Connect the sig-
nal ground to a convenient ground reference. See
Table 9 for jumpers JU9 and JU14 configuration.
Table 7. Jumpers JU7, JU15 Configuration
ture. Place a shunt across pins 2-3 to ignore high-to-low
transitions at EN and SHDN . See Table 7 for jumpers
JU7 and JU15 configuration.
SHDN Control (JU8, JU13)
Jumpers JU8 and JU13 initiate the MAX16050 and
SHUNT
POSITION
1-2
2-3
EN_HOLD INPUT SETTING
Normal operation of EN and SHDN functions
Ignores high-to-low transitions at EN and SHDN
MAX16051 for a reverse-sequencing event. Install
Table 8. Jumpers JU8, JU13 Configuration
shunts on jumpers JU8 and JU13 to initiate a reverse-
sequencing event. Remove the shunts at jumpers JU8
and JU13 for proper power-up operation when EN =
high. To drive SHDN externally, place a square-wave
signal with a 2V to 5.5V logic-high level at pin 1 of
jumpers JU8 or JU13. See Table 8 for jumpers JU8 and
JU13 configuration.
FAULT Control (JU9, JU14)
SHUNT
POSITION
Not
installed
Installed
SHDN INPUT SETTING
Controller enabled or externally driven
Reverse power-down sequencing. RESET
asserts low.
FAULT INPUT SETTING
Jumpers JU9 and JU14 control the MAX16050 and
MAX16051 input/output FAULT signal, respectively.
FAULT asserts low when any of the monitored IN volt-
ages fall below its SET voltage threshold. As an output,
Table 9. Jumpers JU9, JU14 Configuration
SHUNT
POSITION
FAULT can be driven externally to initiate a simultane-
ous power-down of the DC-DC controllers. Install a
shunt across jumpers JU9 and JU14 to initiate a shut-
down of the controllers. To drive FAULT externally,
place a square-wave signal with a 2V to 5.5V logic-high
Not
installed
Installed
Normal operation
Disables controller. Initiates simultaneous power
down of OUT_. RESET asserts low.
6
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