HV301 Ver la hoja de datos (PDF) - Supertex Inc

Número de pieza

componentes Descripción

Fabricante

HV301

Hot Swap Controller (Negative Supply Rail)

Supertex Inc 

Long

Pin

GND

Short

Pin

GND R1

487kΩ

R2

6.81kΩ

R3

9.76kΩ

-48V

Long

Pin

8

VDD

3 UV

2 OV

PWRGD / PWRGD 1

HV301/

HV311

ENABLE / ENABLE +5V

Cload

DC/DC

PWM

COM

CONVERTER

RAMP VEE

7

4

SENSE GATE

5

6

C1

10nF

R4

12.5mΩ

Q1

IRF530

HV301/HV311

Note: capacitor may be needed to slow PWRGD dv/dt if gate

oscillations around are observed when VIN is close to OVLO.

Application Circuit 6

If separate resistor dividers are used for OV and UV, then only the

positive (VDD) end of the UV resistor divider should be connected

to the short pin (Application Circuit 8).

If a system requires the use of a short connector pin on the

negative supply lead to guarantee that the power pins are fully

mated before the hot swap control circuit is enabled and a single

resistor divider string (R1, R2 and R3) is used, then a 6.2V to 10V

zener diode must be connected from the UV pin to the VEE pin,

as seen below in Application Circuit 9.

Long

Pin

GND

Short

Pin

GND

R1

475KΩ

R2

16.2KΩ

8

VDD

PWRGD / PWRGD 1

3

UV

R3

511KΩ

2 OV

R4

10KΩ

HV311

ENABLE / ENABLE +5V

Cload

DC/DC

PWM

COM

CONVERTER

RAMP VEE SENSE GATE

7

4

5

6

-48V

Long

Pin

C1

10nF

R5

12.5mΩ

Q1

IRF530

Note: capacitor may be needed to slow PWRGD dv/dt if gate

oscillations around are observed when VIN is close to OVLO.

13

Application Circuit 8

A092605

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