HV310 Supertex Inc, HV310 Datasheet - Page 3

• Manufacturer Part Number: HV310
• Description: Hotswap/ Inrush Current Limiter Controllers
• Manufacturer: Supertex Inc

Absolute Maximum Ratings
V
V
Operating Ambient Temperature Range
Operating Junction Temperature
Range
Storage Temperature Range
UV & OV ref to V
PWRGD
Timing Diagrams
EE
PWRGD
V
V
V
V
OUT
inactive
reference to V
RAMP
GATE
active
IN
I
IN
GND
V
-48V
EE
referenced to V
contact
bounce
Initialization
EE
DD
pin
EE
t
V
t
RISE
POR
Voltage
UVL
t
TH
t
START
V
V
IN
90%
GS(th)
V
t
LIM
RAMP
V
Limiting
OUT
V
GATE
-40°C to +125°C
-65°C to +150°C
-40°C to +85°C
+0.3V to -100V
-0.3V to +100V
-0.3V to +12V
V
I
LIM
GS(lim)
t
Full On
PWRGD
V
GATE
3
V
range from 9V to 11V.
V
transistor and may be obtained from its datasheet.
V
to obtain the limit curent. It is dependent on the pass
transistor’s characteristics and may be obtained from the
transfer characteristics curves on the transistor datasheet.
g
be obtained from its datasheet.
R
fs
INT
GS(th)
GS(lim)
t
t
t
t
t
t
FB
I
START
TH
POR
PWRGD
RISE
LIM
LIM
is the transconductance of the pass transistor and may
is the internal feedback resistor and is 5kΩ nominal.
is the internally regulated supply voltage and can
=
≈
=
=
≈
is the gate threshold voltage of the external pass
is the pass transistor gate-source voltage required
V
=
V
t
GS th
V
R
g
START
=
IN
1 2
SENSE
SENSE
fs
( )
(
.



V
C
V
I
INT
0 9
LOAD
C
LIM
I
I
.
+
C
RAMP
RAMP
I
RAMP
RAMP
I
t
−
RAMP
C
TH
LIM
V
RAMP
−
GS
1
2
−
(lim)
t
R
RISE
SENSE
R
−
FB
1 2
.



V
)
C
I
RAMP
RAMP
HV300/HV310