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BU406H/BU408 SGS THOMSON

HORIZONTAL TV DEFLECTORS

DESCRIPTIO N

The BU406, BU406H, and BU408 are silicon epitax­

ial planar NPN transistors in Jedec TO-220 plastic package. They are fast switching, high voltage de­

vices for use in horizontal deflection output stages of large screen MTV receivers with 110’ CRT.

ABSOLUTE MAXIMUM RATINGS

S y m b o l P a r a m e t e r V a lu e U n it

Vceo Collector-base Voltage (Ie= 0) 400 V

VcEV Collector-emitter Voltage (Vbe = - 1.5V) 400 V

VcEO Collector-emitter Voltage ( Ib= 0) 200 V

VebO Emitter-base Voltage (Iq= 0) 6 V

•c Collector Current 7 A

ICM Collector Peak Current (repetitive) 10 A

IcM Collector Peak Current (tp = 10ms) 15 A

Ib Base Current 4 A

Ptot Total Power Dissipation at T caSe S 25°C 60 W

Tstg Storage Temperature 65 to 150 °C

T | Junction Temperature 150 °C

December 1988 1/5

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THERMAL DATA

• * t h j - c a s e Thermal Resistance Junction-case Max 2.08 °C/W

R t h j - a m b Thermal Resistance Junction-ambient Max 70

°c/w

ELECTRICAL CHARACTERISTICS(Tcase = 25°C unless otherwise specified)

S y m b o l P a r a m e t e r T e s t C o n d itio n s M in . T y p . M a x. U n it

Ices Collector Cutoff Current VCE = 400V 5 mA

< CO m II o Vce = 250V Tcase — 150°C 100 gA

VCE = 250V 1 mA

Ie b o Emitter Cutoff Current_o II O V E B = 6V 1 mA

VcE(sat)* Collector-emitter Saturation for B U 4 0 6

Voltage Ic = 5 A l B = 0.5A 1 V

for B U 4 0 6 H

Ic = 5A Is = 0.8A 1 V

for B U 4 0 8

Ic = 6A l B = 1.2A 1 V

VBE(sat)' Base-emitter Saturation for B U 4 0 6

Voltage Ic = 5A lB = 0.5A 1.2 V

for B U 4 0 6 H

o II cn > lB = 0.8A 1.2 V

for B U 4 0 8

Ic = 6A Ib = 1 - 2 A 1.5 V

f T Transition Frequency Ic = 0.5A Vce = 10V 10 MHz

toff Turn-off Time for B U 4 0 6

o II cn > i B e n d — 0.5A 0.75 ps

for B U 4 0 6 H

O II cn > i B e n d = 0.8A 0.4 gs

for B U 4 0 8

Ic = 6A ^ B e n d = 1-2A 0.4 gs

Second Breakdown Collector

Current Vce = 40V t = 10ms 4 A

* Pulsed : pulse duration = 300ps. duty cycle = 1.5%.

** See test circuit.

DC Current Gain.

10 ’ I Ic (A )

Collector-emitter Saturation Voltage.

2/5 r z

7 SCS-THOMSON

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Base-emitter Saturation Voltage.

Storage Time.

G -1367

-M -

ee e s t

ircuit

V -

=3

•MT

H

* M

"H

in

. " 5

| I

T X T

—L

i--- j -

-

T

j * ^ 9 0 * /. CONFIDENCE

T T T 1 1 1 T T

i J_ T

1 i i_L

0 25 50 75 Tc a s e ( *C)

Collector cutoff Current.

G-1365/2

0 25 50 75 Tc a s e CC)

Turn-off Time.

G-1368 t o f f

( u s )

10-

io-

0 25 50 75 Tc a s e < *c )

Collector-emitter Saturation Voltage.

r r j

SGS-TH

0

MS

0

N

^ 7 # MUCMNUKnHMIlCS

3/5

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S W ITCH IN G TIM ES

TEST CIRCUIT (FALL. STORAGE AND TURN-OFF TIME)

s-oasvi L1 Horizontal hold coil : Pins 1-2 = 75 turns 0 0.2mm ; R = 1.512 ; L min = 0.62mH

Core = siferrit B 62120 25x4x2 Pins 2-3 = 293 turns 0 0.2mm ; R = 4.812; L max = 4.1 H

L2 Horizontal yoke = 200jjH

T1 Driver transformer: Pins 1-2 = 125 turns 0 0.2mm ;

Gap = 0.12mm ; Core = 3E3 double E 19x15x5 Pins 3-4 = 25 turns 0 0.4mm ;

T2 EHT transformer manufacturer ARCO type 249.065/035 R = 33012 for BU406

R = 22012 for BU406H R = 18012 for BU408

WAVEFORMS

4/5

7 SGS-THOMSON

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A PPLICATIO N INFO R M ATIO N

BU406 - APPLICATION CIRCUIT FOR 17" TO 24" -1 1 0’ - 28 MM NECK PICTURE TUBES

* N1 = 125 turns 0 0.3mm ; N2 = 30 turns 0 0.6mm ; GAP = 0.12mm : CORE = DOUBLE E 19x5x8mm ; FERRITE 3E1 TYPE

r r z

SGS-THOMSON

* 7 # wicnmiiCTrasiHDes

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