BU941 datasheet(2/8 Pages) STMICROELECTRONICS

No de pièce	BU941

Description	HIGH VOLTAGE IGNITION COIL DRIVER NPN POWER DARLINGTON

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Fabricant	STMICROELECTRONICS [STMicroelectronics]

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THERMAL DATA

TO-3

TO-218

ISOW AT T218

Rthj-ca se

Thermal Resistance Junction-case

Max

0.97

2.3

oC/W

ELECTRICAL CHARACTERISTICS (Tcase =25

oC unless otherwise specified)

Symb ol

Parameter

Test Cond ition s

Mi n.

Typ .

Max.

Un it

ICES

Collector Cut -of f

Current (VBE =0)

VCE =500 V

Tj =125

oC

100

0.5

µA

mA

ICEO

Collector Cut -of f

Current (IB =0)

VCE =450 V

Tj =125

oC

100

0.5

µA

mA

IEBO

Emitt er Cut -of f Current

(IC =0)

VEB =5 V

20

mA

VCEO(sus )

∗ Collector-Emitter

Sustaining Voltage

(IB =0)

IC =100 mA

L = 10 mH

VClamp =400 V

(See FIG .4)

400

V

VCE(sat)

∗ Collector-Emitter

Saturation Voltage

IC =8 A

IB =100 mA

IC =10 A

IB =250 mA

IC =12 A

IB =300 mA

1.6

1.8

2

V

VBE(s at)

∗ Base-Emitter

Saturation Voltage

IC =8 A

IB =100 mA

IC =10 A

IB =250 mA

IC =12 A

IB =300 mA

2.2

2.5

2.7

V

hFE

∗

DC Current Gain

IC =5 A

VCE = 10 V

300

VF

Diode F orward Voltage

IF =10 A

2.5

V

Funct ional T est

(see fig. 1)

VCC =24 V

VClamp =400 V

L= 7mH

10

A

ts

tf

INDUCTIVE LO AD

St orage Time

Fall Time

(see fig. 3)

VCC =12 V

VClamp =300 V

VBE =0

RBE =47

Ω

L= 7mH

IC =7 A

IB =70 mA

15

0.5

µs

∗ Pulsed: Pulse duration = 300 µs, duty cycle 1.5 %

Safe Operating Area

DC Current Gain

BU941 / BU941P / BUB941PFI

2/8

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