BUV48 데이터 시트보기 (PDF) - Motorola => Freescale

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BUV48

SWITCHMODE II Series NPN sIlicon Power Transistor

Motorola => Freescale 

BUV48 BUV48A

VCEO(sus)

+10 V

1

20

0

2

PW Varied to Attain

IC = 200 mA

Table 1. Test Conditions for Dynamic Performance

RBSOA AND INDUCTIVE SWITCHING

PULSES

δ = 3%

220

680 pF

33

D1

2 W 160

100

MM3735

22 µF

D3

2N6438

+10 V

MR854

680 pF

22

Ib1 ADJUST

D1 D2 D3 D4 1N4934

680 pF

0.1 µF Ib2 ADJUST

22

dTb ADJUST

2N3763

100

D4

dT

MR854

160

33

2W

D3

0.22 µF 2N6339

VCC

RESISTIVE SWITCHING

TURN–ON TIME

1

2

IB1

IB1 adjusted to

obtain the forced

hFE desired

TURN–OFF TIME

Use inductive switching

driver as the input to

the resistive test circuit.

Lcoil = 25 mH, VCC = 10 V

Rcoil = 0.7 Ω

Lcoil = 180 µH

Rcoil = 0.05 Ω

VCC = 20 V

Vclamp = 300 V

RB ADJUSTED TO ATTAIN DESIRED IB1

INDUCTIVE TEST CIRCUIT

TUT

1

INPUT

SEE ABOVE FOR

DETAILED CONDITIONS

2

1N4937

OR

EQUIVALENT

Vclamp

RS =

0.1 Ω

Rcoil

Lcoil

VCC

OUTPUT WAVEFORMS

IC

IC(pk)

t1

tf

VCE

VCE or

Vclamp

TIME

t2

tf Clamped

t

t

t1 Adjusted to

Obtain IC

t1 ≈

Lcoil (ICpk)

VCC

t2 ≈

Lcoil (ICpk)

VClamp

Test Equipment

Scope — Tektronix

475 or Equivalent

VCC = 300 V

RL = 83 Ω

Pulse Width = 10 µs

RESISTIVE TEST CIRCUIT

TUT

1

RL

2

VCC

IC pk

VCE(pk)

90% VCE(pk) 90% IC(pk)

IC

tsv

trv

tfi

tti

VCE

IB

90% IB1

tc

10% VCE(pk) 10%

IC pk

2% IC

TIME

Figure 7. Inductive Switching Measurements

10

βf = 5

8

IC = 10 A

6

4

2

0

0

1

2

3

4

5

6

VBE(off), BASE–EMITTER VOLTAGE (VOLTS)

Figure 8. Peak–Reverse Current

4

Motorola Bipolar Power Transistor Device Data

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