HV301 SUTEX [Supertex, Inc], HV301 Datasheet - Page 13

• Manufacturer Part Number: HV301
• Description: Hotswap, Controllers with Circuit Breaker
• Manufacturer: SUTEX [Supertex, Inc]

Application Information, cont’d.
Unfortunately this will also cause some delay in responding to
UV conditions. If this UV delay is not acceptable, then separate
resistor dividers can be provided for OV and UV with a capacitor
connected from OV pin to the V
Note: capacitor may be needed to slow PWRGD dv/dt if
oscillations are observed when V
Note: capacitor may be needed to slow PWRGD dv/dt if
oscillations are observed when V
EE
pin (Application Circuit 6).
GND
-48V
IN
16.2kΩ
GND
-48V
475kΩ
IN
is close to OV.
is close to OV.
GND
R1
R2
6.81kΩ
9.76kΩ
487kΩ
Long
Pin
Short
Pin
Long
Pin
R2
R3
R1
R3
511kΩ
R4
10kΩ
C2
10nF
3
2
C1
3
2
UV
OV
UV
OV
RAMP
V DD
8
7
RAMP
V DD
8
7
C1
10nF
V EE
13
4
V EE
4
12.5mΩ
HV301/
HV311
HV311
PWRGD / PWRGD
R5
R4
12.5mΩ
PWRGD / PWRGD
Using Short Connector Pin
In some systems short connector pins are used to guarantee that
the power pins are fully mated before the hotswap control circuit
is enabled. For these systems the positive (V
R2, and R3 resistor divider should be connected to the short pin
(Application Circuit 7).
SENSE GATE
5
SENSE GATE
5
6
6
IRF530
Q1
IRF530
Q1
1
1
Cload
ENABLE / ENABLE
Cload
ENABLE / ENABLE
CONVERTER
CONVERTER
DC/DC
PWM
DC/DC
PWM
Application Circuit 6
Application Circuit 7
+5V
COM
+5V
COM
DD
) end of the R1,
HV301/HV311