HV100/HV101
3-Pin Hotswap, Inrush Current Limiter Controllers
(Negative Supply Rail)
Features
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33% Smaller than SOT-232
Pass Element is Only External Part
No Sense Resistor required
Auto-adapt* to Pass Element
Short Circuit Protection*
UV & POR Supervisory Circuits
2.5s Auto Retry
±10V to ±72V Input Voltage Range
0.6mA Typical Operating Supply Current
Built in Clamp for AC Path Turn On Glitch
General Description
The HV100 and the HV101 are 3-pin hotswap controllers
available in the SOT-223 package, which require no external
components other than a pass element. The HV100 and the
HV101 contain many of the features found in hotswap control-
lers with 8 pins or more, and which generally require many
external components. These features include undervoltage (UV)
detection circuits, power on reset (POR) supervisory circuits,
inrush current limiting, short circuit protection, and auto-retry.
In addition, the HV100 and the HV101 use a patent pending
mechanism to sample and adapt to any pass element, resulting
in consistent hotswap profiles without any programming.
The only difference between the HV100 and the HV101 is the
internally set undervoltage (UV) threshold.
*Patents Pending
Applications
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-48V Central Office Switching (line cards)
+48V Server Networks
+48V Storage Area Networks
+48V Peripherals, Routers, Switches
+24V Cellular and Fixed Wireless (bay stations,
line cards)
+24V Industrial Systems
+24V UPS Systems
-48V PBX & ADSL Systems (line cards)
Distributed Power Systems
Powered Ethernet for VoIP
Typical Application Circuit and Waveforms
GND
V
PP
400F
GATE
DC/DC
Converter
+5V
COM
HV100
V
NN
-48V
IRF530
SUPERTEX [ Supertex, Inc ]
