HV7100DB1 Supertex, HV7100DB1 Datasheet

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HV7100DB1

Manufacturer Part Number
HV7100DB1
Description
Manufacturer
Supertex
Datasheet
1.HV7100DB1.pdf (2 pages)

Specifications of HV7100DB1

Lead Free Status / Rohs Status
Supplier Unconfirmed
Supertex inc.
General Description
The Supertex HV7100DB1 is a fan controller/driver designed
to operate from +24V or +48V supplies. Fan speed is controlled
by pulse width modulating the supply voltage provided to the
fans. For fans that do not work properly with a PWM supply,
an included daughter board contains an LC fi lter for converting
the pulse width modulated output of the main board to a DC
output voltage.
On-board controls allow adjustment of the fan speed.
Alternatively, the fan speed may be controlled using externally
applied signals.
Board Layout and Connection Diagram
Connections and Controls:
V
GND - Circuit common.
FAN - Connect the fan(s) between the fan and ground terminals
as shown above. Fan load should not exceed 1.3A.
ENABLE - Setting the ENABLE switch to OFF disables the fan(s).
Speed - The fan speed may be controlled in 2 ways: linear or digi-
tal. The upper, linear control (R1) varies duty cycle continuously.
The lower speed control (SW1) is digital, with fan speed set in 16
steps from off to full on. The higher fan speed setting, linear or
digital, dominates.
External Control (J1) - When using external signals to control the
HV7100DB1, set the digital speed control to zero, set the on-board
linear control fully CCW, and set the ENABLE switch to OFF. When
using an external linear control signal, set the LIN jumper to EXT.
Logic levels are: 0 < 0.9V; 1 > 2.52V.
Linear Control Selection (LIN) - With the LIN jumper set to INT
and digital speed control set to 0, fan speed is controlled using the
on-board potentiometer (R1). When set to EXT, fan speed is con-
trolled by a voltage applied to the LIN pin on connector J1.
V
GND
IN
DD
EN
D2
D0
Supertex inc.
- Connect to a +16V to +75V supply.
J1
SW1
R1
V
LIN
D3
D1
GND
DD
OFF
IC1
C1
SW2
+24V/+48V Fan Driver/Controller Demo Board
ON
Q1
·
1235 Bordeaux Drive, Sunnyvale, CA 94089
R3
R4
C2
C3
C6
C5
D1
J2
+16V to
+60V
Specifi cations
Supply voltage
Supply current, typical, no load
Output current (max)
PWM frequency
(jumper selectable)
1
Duty cycle is given by:
f
f
LC Filter Board - Without the fi lter board, the HV7100DB1 drives
the fans with a PWM supply voltage. Some fans may not work
properly when driven in this manner, instead preferring a steady
DC voltage. The fi lter board fi lters out the PWM frequency, provid-
ing a DC voltage to drive the fans.
Remove the terminal block from the main board, move it to the LC
fi lter board, then plug the fi lter board onto the main board. When
using the fi lter board, set f
D
PWM
PWM
·
up to 1.3A total
Tel: (408) 222-8888
jumpers as follows:
- PWM switching frequency may be adjusted by setting the
V
LIN
2
600Hz
60kHz
60Hz
6kHz
. 0
f
25
·
FAX: (408) 222-4895
A
x
x
PWM
L10
to 60kHz.
The terminal block may be
removed by pulling straight up.
B
x
x
60Hz, 600Hz, 6kHz, 60kHz
HV7100DB1
C
x
x
C10
·
www.supertex.com
D
+16V to +75V
x
x
3.0mA
042006
1.3A

HV7100DB1 Summary of contents

Page 1

... PWM LC Filter Board - Without the fi lter board, the HV7100DB1 drives the fans with a PWM supply voltage. Some fans may not work properly when driven in this manner, instead preferring a steady DC voltage. The fi lter board fi lters out the PWM frequency, provid- ing a DC voltage to drive the fans ...

Page 2

... HV7100DB1 100µF 2.2µ IRFR9120N 2 FAN VIN V IN GND D 1 US1B 680µ 100µF HV7100DB1 HV7100DB1 LC Filter Package Manufacturer Manufacturer’s Part Number - Apem - - - Vishay 0805 - 0805 - 0805 - 0805 - 0805 - 0805 - 0805 - - Tecate TRS-100/101M12x20 - - - - D-Pak IR - Supertex ...