Материал: 9814
Philips Semiconductors |
Product specification |
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Damper diode |
BY328 |
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APPLICATION INFORMATION |
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For horizontal deflection circuits, two basic applications are shown in Figs 8 and 9. |
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The maximum allowable total power dissipation for the diode can be calculated from the thermal resistance Rth j-a and the difference between Tj max and Tamb max in the application. The maximum IFWM can then be taken from Fig.2.
The basic application waveforms in Fig.10 relate to the circuit in Fig.8. In the circuit in Fig.9 the forward conduction time of the diode is shorter, allowing a higher IFWM (see Fig.2).
handbook, alfpage |
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horizontal |
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deflection |
D1 |
LY |
transistor |
+ (E-W)
MBE935
D1 = BY328.
Fig.8 Application in basic high-voltage E/W modulator circuit.
handbook, horizontalalfpage
deflection |
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transistor |
LY |
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D1 |
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Cf |
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Cs |
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MBE934 |
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D1 = BY328.
Fig.9 Application in basic horizontal deflection circuit.
handbook, full pagewidth
I F |
I FRM |
I FWM
time
VR VRRM
time
t p
T |
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MCD430 - 1 |
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Fig.10 Basic application waveforms.
1996 May 24 |
6 |
Philips Semiconductors |
Product specification |
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Damper diode |
BY328 |
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PACKAGE OUTLINE |
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handbook, full pagewidth |
k |
a |
1.35 max
4.5 |
28 min |
5.0 max |
28 min |
MBC049 |
max |
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Dimensions in mm.
Fig.11 SOD64.
DEFINITIONS
Data Sheet Status
Objective specification |
This data sheet contains target or goal specifications for product development. |
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Preliminary specification |
This data sheet contains preliminary data; supplementary data may be published later. |
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Product specification |
This data sheet contains final product specifications. |
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Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale.
1996 May 24 |
7 |