datasheet for VHV12

datasheet for VHV12
Ultra small size adjustable output type high voltage power supply
2W to 2.6W high voltage DC-DC converter
0V-470V 1000V 1500V 2000V VHV Series
The VHV series is the first high voltage product supply in the industry to use the latest SMT (surface mount technology)
making the size 1/5 to 1/6 from the normal product, with an adjustable output voltage type mid-high voltage DC-DC converter.
Output voltage can be controled using an external voltage or external adjustable resistor. The VHV series has adopted a 5 side
metallic shield, with farther low ripple and low noise.
Features
PCB mounting type
Adopted a 5 sided metallic shield case
Output capacity 2W to 2.6W
Remote ON/OFF control
Over current protection
High reliability, long life
Worlds smallest size device
Low ripple noise of 30mVp-p
Low price
Adjustable voltage using an external voltage
UL certified product (UL File No. E305960)
Model name/Rating
Specifications
Note1: The output voltage can be controlled by impressing the Vcont voltage. Using an adjustable resistor or an external voltage,voltage should
be impressed on the Vcont pin in order to control the output voltage. When Vcont voltage=0V the output voltage(residual output voltage)
should be less than 0.5% of the max output voltage (at Input/Output rating).
Test circuit
Block diagram
+Vin
1
High voltage
oscillating
transistor
DC-AC
switch circuit
Vout (+ or -)
High voltage
recitification
part
7
C o n tro l IC
+
12V
Load
output voltage control
over current protection
standard voltage part
-Vin
SW1
Open=ON
Short=OFF
Warning 1: The input-output ground line and case are internally connected.
Warning 2: Vref is 4V (When external VR=5K )
Warning 3: The ON/OFF can be controlled with a transistor.
6
Vout (com)
voltage detection
circuit
2
ON/OFF
Control part
Case
SW1
ON/OFF 5
Vref
Vcont 3
4
External voltage (0 to 4V)
or
VR (5K
+
)
Kaga Electronics/Volgen DC/DC Converters
BHV20110111
19.75
25.0±0.7
19.25
Model/Dimensions/Pin configuration (M-11 case)
2.0
5.0
CL
Weight : 65g typ.
Units : mm
Tolerance unless otherwise specified ±0.5
pin-NO.
1
2
3
4
5
6
7
pin name
Vin
-Vin
Vcont
Vref
ON/OFF
Vout (com)
Vout (+ or -)
1)Pins
Material : Phosphorous bronze
Treatment Ni base Au coating
2)Case
Material : Brass
Treatment : Nickel coating
Standard usage instructions
ON/OFF control
By opening and closing the ON/OFF pin and -Vin pin
the external voltage can be turned on and off.
Between the ON/OFF pin (5) and -Vin pin (2)
1) Open will turn the output ON
2) Short(0 to 1.0V 1mAmax) will turn the output OFF
The ON/OFF pin is internally pulled up to the +Vin, so be careful
of the voltage from the switching element of the ON/OFF pin
(photo couplers, transistors, etc)
Keep the (5) open when not using the ON/OFF control.
ON/OFF
ON/OFF
The VHV series does not require any external parts,
(5)
(5)
(2)
(2)
however when the impedance is high, for example:
the distance between the power supply and converter
then connecting a capacitor C1 to the input side is
-Vin
-Vin
long, the input line is thin, or the input side has a filter
Non-isolation type
Isolation type
recommended.
The chattering to the ON/OFF pin will affect the output voltage,
Place the capacitor as close as possible near to the
so choose one without any chattering. When the output is turned off
converter pin side, to lower the lead inductance.
by ON/OFF control, the residual output voltage should be within 0.5%.
Kaga Electronics/Volgen High Voltage DC-DC Converters
2
BHV20080717
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