Rainbow-electronics BA178ххT_FP Manual de usuario descargar pdf (Pagina 9)

BA178!!T / FP series

Regulator ICs

"Measurement circuits

0.1µF

0.33µF

OUTPUTINPUT

COMMON

Fig. 1 Measurement circuit for output voltage,

input stability,load regulation,

temperature coefficient of output voltage

0.1µF

0.33µF

100µF

OUT

10Ω5W

=1Vrms

f=120Hz

Ripple rejection ratio R.R. = 20 log

OUT

OUTPUTINPUT

COMMON

Fig. 2 Measurement circuit for ripple rejection rario

()

OUTPUTINPUT

COMMON

0.1

0.33µF

Noise

meter

BPF

10Hz∼

100kHz

10µF

µF

Fig. 3 Measurement circuit for output noise voltage

OUTPUTINPUT

COMMON

0.1µF

0.33µF

∆V=

100mA

Fig. 4

Measurement

circuit for Minimum

I / O voltage differential

OUTPUTINPUT

COMMON

0.1

0.33

VIN

µF

Fig. 5 Measurement circuit for bias

current and bias current change

OUTPUTINPUT

COMMON

0.1

0.33

VIN

µF

Fig. 6 Measurement circuit for

Fig. 1 output short-circuit current

"Electrical characteristic curves

OUTPUT VOLTAGE : V

OUT

(V)

OUTPUT CURRENT : I

OUT

(A)

=10V

BA17805T

1.0 1.2 1.4 1.6 1.8 2.0

Fig. 7 Current limit characteristics

OUTPUT VOLTAGE : V

OUT

(V)

JUNCTION TEMPERATURE : Tj (˚C)

25 50 75 100 125 150 175 200

=10V, I

OUT

BA17805T

Fig. 8 Thermal cutoff circuit

Fig. 2 characteristics

0 25 50 75 100 125 150

(1) Infinite heat sink, θj-c = 5.7 (˚C/W)

(2) 100×100×2 (mm

), with Al heat sink

(3) 50×50×2 (mm

), with Al heat sink

(4) No heat sink θj-a = 62.5 (˚C/W)

POWER DISSIPATION : Pd (W)

(3) 6.5

(4) 2.0

AMBIENT TEMPERATURE : Ta (˚C)

(1) 22.0

(2) 11.0

Fig.9 Ta - power dissipation

characteristics (TO220)

Note: With Al heat sink, tightening

torque = 6 kg/cm and silicon

grease as lubricant

1 2 3 4 5 6 7 8 9 10 11

!!T / FP series 1
BA178!!T / FP series 10

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Rainbow-electronics BA178ххT_FP Manual de usuario Pagina 9

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