HIGH VOLTAGE
POWER SUPPLY UNIT
C4900 SERIES
The C4900 series are compact PC–board mountable high voltage power supplies, especially designed for
photomultiplier tubes. The design offers better performance and improved fail–safe protection.
The C4900 and–01 output negative polarity and the C4900–50 and –51 output positive polarity high voltages.
FEATURES
Compact and Lightweight
High stability
Low Power Consumption
Fast Response
Wide Variable Output Range
Ample Protective and Fail–safe Functions
SPECIFICATIONS
Parameter
Input Voltage Range
Input Current
Variable Output Range 0 to –1250 0 to +1250
Specification Guaranteed
Output Voltage Range
Output Current
Line Regulation against ±1 V or 0.5 V Change
Load Regulation against
0 % to 100 % Load Change
Ripple / Noise (p-p)
Output Voltage Controlling Modes
Controlling Voltage Input Impedance
Reference Voltage Output
Output Voltage Setting (Absolute value)
Output Voltage Rise Time (0 % 99 %)
Temperature Coefficient
Operating Temperature Range
Storage Temperature Range
Dimensions (W × H × D)
Weight
Protective Functions
a At Maximum Output Voltage.
a
b
b
with no load
with full load
a
b
b
b
b
b At Maximum Output Voltage and Current.
C4900
+15 ± 1 +12 ± 0.5 +15 ± 1 +12 ± 0.5
14 15 14 15
90 95 90 95
–200 to –1250 +200 to +1250
0.6 0.5 0.6 0.5
By external controlling voltage (0 V to +5 V) or external potentiometer (50 kΩ ± 2.5 kΩ)
Units protected against reversed power input, reversed/excessive controlling
voltage input, continuous overloading/short circuit in output
C4900-01
+5.13 (with 50 kΩ external potetiometer)
(Controlling voltage × 250) ± 0.5 %
0 to +50
-20 to +70
46 × 24 × 12
C4900-50
± 0.01
± 0.01
0.007
80
50
± 0.01
31
C4900-51
PATENT
Unit
V
mA (Typ.)
V
V
mA (Max.)
% (Typ.)
% (Typ.)
% (Typ.)
kΩ (Typ.)
V (Typ.)
V (Typ.)
ms (Typ.)
%/°C (Typ.)
°C
°C
mm
g
Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office.
Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications are
subject to change without notice. No patent rights are granted to any of the circuits described herein. ©2001 Hamamatsu Photonics K.K
HIGH VOLTAGE POWER SUPPLY UNIT C4900
Figure 1: Output Voltage Controlling
BY EXTERNAL POTENTIOMETER BY EXTERNAL VOLTAGE
qwe r
+15 V or +12V
0 V to +5 V*
t
NO
CONNECTION
(IC)
y
qwe r
+15 V or +12 V
MIN
50 kΩ
t
MAX
SERIES
PIN ASSIGNMENT
y
: 5.13V Typ.)
+15 V or +12 V IN
q
w
GND 1 (Input/Output GND)
GND 2 (Controlling Voltage GND)
e
r
HV ADJ (Controlling Voltage Input)
t
Vref OUT (Reference Voltage Output
y
HV OUT
The housing is internally connected
to pin w.
Pins w and e are internally
connected.
LOAD
* The instability in the external controlling voltage should be
minimized as it directly affects the output voltage quality.
LOAD
TACCC0049ED
Figure 2: Output Voltage Controlling Characteristic Figure 3: Example of Ripple/Noise Reduction Circuit
(C4900, -01)
-1500
-1250
-1000
-750
-500
TACCB0043EA
OUTPUT VOLTAGE (V)
-250
0
0
1
234 6
CONTROLLING VOLTAGE (V)
5.3
5
(C4900-50, -51)
+1500
+1250
+1000
+750
+500
OUTPUT VOLTAGE (V)
+250
0
+15 V or +12 V
+
47 µF
(25 V)
INPUT GND
*The ripple/noise can be halved by adding
capacitors as illustrated above.
q
C4900
SERIES
w
y
HV OUT
0.2 µF
(2 kV)
OUTPUT GND
TACCC0099EB
Figure 4: Dimensional Outline (Unit: mm)
46
12
Drilling Data for PC Board
(Soldering Face)
24
29
9.53
y
1.5
2.5
15.88
8.2510.16
0.3
The mounting tabs can be
bent to the right angle only once
The mounting tabs are solderable.
MOUNTING TABS
)(
TACCA0157EB
wer
t
q
5 MIN.
15.88
3.81
0.5 × 0.25
2.54
(BOTTOM VIEW)
PATENT: USA No.5548502, 5568343 JAPAN: No.2758552, 2784136 EUROPE: No.641066, 649222
*
3.81 15.88 15.88
2.54
9.53 8.2510.16
4- 2
11.7
6- 0.8
TACCA0159EB
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HAMAMATSU PHOTONICS K.K., Electron Tube Center
314-5, Shimokanzo, Toyooka-village, Iwata-gun, Shizuoka-ken, 438-0193, Japan, Telephone: (81)539/62-5248, Fax: (81)539/62-2205
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United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road Welwyn Garden City Hertfordshire AL7 1BW, United Kingdom, Telephone: 44-(0)1707-294888, Fax: 44(0)1707-325777 E-mail: info@hamamatsu.co.uk
North Europe: Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171-41 SOLNA, Sweden, Telephone: (46)8-509-031-00, Fax: (46)8-509-031-01 E-mail: info@hamamatsu.se
Italy: Hamamatsu Photonics Italia: S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39)02-935 81 733, Fax: (39)02-935 81 741 E-mail: info@hamamatsu.it
TACC1013E02
MAY. 2001 IP
Printed in Japan (500)