Wideband Output Module (Video Pack) VPS13 Display Video Outp
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Ordering number EN5548A
Wideband Output Module (Video Pack)
VPS13
Display Video Output Amplifier, High-Voltage/Wideband Amplifier
Features
High output voltage wide bandwidth; optimal (horizontal deflection frequency) class monitors. VOUT Vp-p) molded 15-pin package houses three amplifier channels.
Package Dimensions
unit: 2127A
[VPS13]
Specifications
Absolute Maximum Ratings 25°C
Parameter Maximum supply voltage Allowable power dissipation Maximum junction temperature Maximum case temperature Storage temperature Symbol Tstg With ideal heat sink 25°C Conditions Ratings +110 Unit
Operating Conditions 25°C
Parameter Recommended supply voltage Symbol Conditions Ratings Unit
Electrical Characteristics 25°C (for single channel)
Parameter Symbol Conditions (DC) VOUT (p-p) (DC) VOUT (p-p) (DC) clock, VOUT (p-p) (DC) clock, VOUT (p-p) Ratings Unit
Frequency band
(DC) ICC(1)
double
Impulse response Voltage gain
Current drain ICC(2)
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, Chome, Ueno, Taito-ku, TOKYO, JAPAN
83097HA (OT)/03096HA (OT) 5548-1/4
VPS13 Internal Equivalent Circuit
Test Circuit (for single channel)
5548-2/4
VPS13
Thermal Design Since VPS13 includes three channels shown circuit diagram page first consider single channel. chip temperature each transistor under actual operating conditions determined using following formula. (Tri) (Tri) (Tri) (°C) .(1) (Tri) Thermal resistance individual transistor Pc(Tri) Collector loss individual transistor Case temperature rise Ambient temperature (Tri) each chip (Tr1) 35°C/W
(Tr2) (Tr4) 30°C/W.(2)
Although loss each transistor video pack varies with frequency uniform, assume maximum operating frequency, (clock), then chip with largest loss will transistor (Tr3) emitter-follower stage. From Pd-f (clock) figure that loss will total loss single channel: (emitter-follower stage)(f MHz) (1ch) MHz) 0.22
Here, must select heat sink with capacity such that these transistors does exceed 150°C. Equation below gives relationship between (Total) .(4) required calculated using this equation equation (1).
5548-3/4
VPS13 VPS13 Thermal Design Example Conditions: Using class monitor, (clock) VOUT Vp-p Here consider case where this class monitor operated 60°C maximum clock frequency MHz. mentioned previously, chip with largest loss transistor (Tr3) emitter-follower stage. Determining that value gives: (emitter-follower stage) 0.22 .(5) Now, determine substituting value equation (5). [°C] Here, 50°C, need only consider cases where Therefore, must design heat sink such that 100°C condition holds when three channels operating maximum levels, i.e., Pd(TOTAL) Pd(one channel) will therefore: (TOTAL) (6.8 2.0, i.e. °C/W actual practice, ambient temperature operating conditions will allow heat sink smaller than that indicated this calculation used. Therefore, design optimization taking actual conditions above data into account also required.
VOUT
(center)
products described contained herein intended surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment like, failure which directly indirectly cause injury, death property loss. Anyone purchasing products described contained herein above-mentioned shall: Accept full responsibility indemnify defend SANYO ELECTRIC CO., LTD., affiliates, subsidiaries distributors their officers employees, jointly severally, against claims litigation damages, cost expenses associated with such use: impose responsibility fault negligence which cited such claim litigation SANYO ELECTRIC CO., LTD., affiliates, subsidiaries distributors their officers employees jointly severally. Information (including circuit diagrams circuit parameters) herein example only; guaranteed volume production. SANYO believes information herein accurate reliable, guarantees made implied regarding infringements intellectual property rights other rights third parties. This catalog provides information August, 1997. Specifications information herein subject change without notice. 5548-4/4
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