SMH4811A
Preliminary
0V
0V
10kΩ
10nF
100V
R
6.8kΩ
D
R3
1kΩ
1MΩ
+
EN/TS
UV
–
EN1
MMBTA06LT1
PG#
R2
+
–
EN2
EN3
EN4
100kΩ
OV
SMH4811A
LMV
339
10kΩ
5V
REF
PD1#
PD2#
FAULT#
+
10kΩ
–
+
R1
–
100nF
50V
100nF
50V
100nF
100µF
100V
R
68kΩ
T
1kΩ
100nF
50V
*10Ω
10nF
100V
R
20mΩ
S
MMBD1401
–48V
–48V
2044 Fig07
Figure 7. Expanding Input Monitoring Capability
0V
R
D
6.8kΩ
R3
DC / DC
Converters
EN/TS
+VIN
–VIN
ON/OFF
+VOUT
–VOUT
V
0V
UV
MMBTA06LT1
PG#
REF
R2
100kΩ
OV
SMH4811A
10kΩ
PD1#
PD2#
5V
10kΩ
R1
100nF
50V
100nF
100µF
100V
100nF
50V
1kΩ
68kΩ
10nF
100V
*10Ω
10nF
100V
MMBD1401
R
S
2044 Fig08
–48V
Figure 8. Typical Application with DC/DC Converter
SUMMIT MICROELECTRONICS, Inc.
2044 6.1 2/8/01
13
SUMMIT [ SUMMIT MICROELECTRONICS, INC. ]
