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SMH4803CEL

Description
Distributed Power Hot-Swap Controller
CategoryPower/power management    The power supply circuit   
File Size174KB,22 Pages
ManufacturerSummit
Websitehttp://www.summitmicro.com
Download Datasheet Parametric View All

SMH4803CEL Overview

Distributed Power Hot-Swap Controller

SMH4803CEL Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerSummit
package instruction,
Reach Compliance Codeunknow
Humidity sensitivity level1
SMH4803
Distributed Power Hot-Swap Controller
FEATURES
• Supply Range ±20VDC to >±500VDC
• Versatile Card Insertion Detection Supports
Both
– Multi-length Pin Systems
– Card Injector Switch Sensing
• Control Up to Four Loads or a Primary Load and
3 DC/DC Converters
• Highly
Programmable
Host Voltage Monitoring
Programmable
Under- and Over-voltage
Detection
Programmable
Power Good Delays for
Sequencing DC/DC Converters
Programmable
Circuit Breaker Function
Programmable
Over-current Filter
Programmable
Quick-Trip™ Circuit Breaker
Values
Programmable
Circuit Breaker Mode
• Duty-Cycle Mode
Latched Mode
2.5V and 5.0V reference outputs
– Easy Expansion of External
Monitor Functions
Fe
Pr
ring
atu
TM
Quick-Trip
le
b
og
r
a
m
m
a
reaker
it
B
cu
C
ir
ASSOCIATE
MEMBER
FUNCTIONAL BLOCK DIAGRAM
ENPGB
VDD
12V ref
PG3#
50kΩ
EN/TS
50kΩ
PD1#
-
+
Programmable
Delay
ENPGA
50kΩ
Filter
PG2#
Programmable
Delay
PD2#
-
UV
+
PG1#
Drain
Sense
-
12V
+
+
OV
-
2.5V ref
VSS
5V
2.5V
12V
current limit
5.0V ref
Vgate
Sense
CBMode
CBReset#
+
50
mV
+
Programmable
Quick-Trip
Ref Voltage
Vgate
Programmable
Delay
Fault
Latch
&
Duty
Cycle
Timer
CBSense
© SUMMIT MICROELECTRONICS, Inc. 2000 • 300 Orchard City Drive, Suite 131 • Campbell, CA 95008 • Telephone 408-378-6461 • Fax 408-378-6586 • www.summitmicro.com
Characteristics subject to change without notice
2041 8.4 6/15/00
-
-
CBFault#
2041 BD 8.0
1
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