1
dc2423af
DEMO MANUAL DC2423A
DESCRIPTION
LTM9100
Anyside™ High Voltage Isolated Switch Controller
with I
2
C Command and Telemetry
Demonstration circuit 2423A showcases the
LTM
®
9100
Isolated Switch Controller in either a typical 48V applica-
tion (–A) or in a high voltage 380V application (–B). The
board may be configured for either high side or low side
operation, dependent on the connection of external sup-
ply and load to the banana jacks. An on board capacitive
load may also be wired into the circuit. LEDs indicate the
presence of input and output voltage. The MOSFET can be
L
, LT, LTC, LTM, Linduino, Linear Technology and the Linear logo are registered trademarks
and QuickEval and Anyside are trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
PERFORMANCE SUMMARY
easily exchanged or replaced due to screw terminal block
mounting. Protection is also included to protect the GATE
and SENSE pins in the event of MOSFET destruction. The
circuit can be operated manually or by computer control.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2423A
Specifications are at T
A
= 25°C
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
CC
Input Supply Range
4.5
5
5.5
V
I
CC
Input Supply Current
50
mA
V
L
Logic Input Supply Range
3
3.3
5.5
V
UV Off Threshold
DC2423A-A 48V Input
DC2423A-B 380V Input
V
UV
Rising
2.518
41.8
251
2.56
43.4
261
2.598
44.9
270
V
V
V
UV On Threshold
DC2423A-A 48V Input
DC2423A-B 380V Input
V
UV
Falling
2.248
37.3
224
2.291
38.8
233
2.328
40.3
242
V
V
V
OV On Threshold
DC2423A-A 48V Input
DC2423A-B 380V Input
V
OV
Rising
1.735
69.8
420
1.770
71.8
432
1.805
73.9
444
V
V
V
OV Off Threshold
DC2423A-A 48V Input
DC2423A-B 380V Input
V
OV
Falling
1.673
67.3
405
1.733
70.3
423
1.787
73.1
440
V
V
V
Current Limit (Circuit Breaker) Threshold
DC2423A-A Trip Current
DC2423A-B Trip Current
R
S
= 0.008Ω ±1%
R
S
= 0.017Ω ±1%
45
5.57
2.62
50
6.25
2.94
55
6.94
3.27
mV
A
A
Circuit Breaker GATE Off Delay
SENSE > 50mV
440
530
620
μs
10-Bit ADC Full-Scale Voltage
SENSE
ADIN, ADIN2
62.8
2.514
64
2.56
65.2
2.606
mV
V
Timer (TMR) Delay
12
ms
Slow Start (SS) Time
56
ms
V
IORM
Maximum Working Insulation Voltage
GND to V
EE
1000
690
VDC
VRMS
Common Mode Transient Immunity
30
50
kV/µs
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