Fairchild FQPF90N08 service manual

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FQPF90N08

80V N-Channel MOSFET

January 2001

QFET

QFET

QFETQFET

FQPF90N08

TM

General Description

These N-Channel enhancement mode power field effect
transistors are produced using Fairchild’s proprietary,
planar stripe, DMOS technology.
This advanced technology has been especially tailored to
minimize on-state resistance, provide superior switching
performance, and withstand a high energy pulse in the
avalanche and commutation modes. These devices are
well suited for low voltage applications such as automotive,
high efficiency switching for DC/DC converters, and DC
motor control.

D

G

S

Absolute Maximum Ratings T

Symbol Parameter FQPF90N08 Units

V

DSS

I

D

I

DM

V

GSS

E

AS

I

AR

E

AR

dv/dt Peak Diode Recovery dv/dt
P

D

T

, T

J

STG

T

L

Drain-Source Voltage 80 V
Drain Current

Drain Current - Pulsed
Gate-Source Voltage ± 25 V
Single Pulsed Avalanche Energy
Avalanche Current
Repetitive Avalanche Energy

Power Dissipation (TC = 25°C)

Operating and Storage Temperature Range -55 to +175 °C
Maximum lead temperature for soldering purposes,
1/8" from case for 5 seconds

- Continuous (T

- Continuous (T

- Derate above 25°C 0.41 W/°C

TO-220F

FQPF Series

= 25°C unless otherwise noted

C

= 25°C)

C

= 100°C)

C

Features

• 44A, 80V, R

• Low gate charge ( typical 84 nC)

• Low Crss ( typical 200 pF)

• Fast switching

• 100% avalanche tested

• Improved dv/dt capability

• 175°C maximum junction temperature rating

G

(Note 1)

(Note 2)
(Note 1)
(Note 1)
(Note 3)

= 0.016Ω @VGS = 10 V

DS(on)

D

!

!

"

"

"

"

!

!

"

!

!

"
"

"

!

!

S

44 A

31.1 A
176 A

1360 mJ

44 A

6.2 mJ

6.5 V/ns
62 W

300 °C

Thermal Characteristics

Symbol Parameter Typ Max Units

R

θJC

R

θJA

©2000 Fairchild Semiconductor International

Thermal Resistance, Junction-to-Case -- 2.42 °C/W
Thermal Resistance, Junction-to-Ambient -- 62.5 °C/W

Rev. A1, January 2001

FQPF90N08

Electrical Characteristics T

= 25°C unless otherwise noted

C

Symbol Parameter Test Conditions Min Typ Max Units

Off Characteristics

BV

DSS

∆BV

DSS

/ ∆T
I

DSS

I

GSSF

I

GSSR

Drain-Source Breakdown Voltage
Breakdown Voltage Temperature

Coefficient

J

Zero Gate Voltage Drain Current
Gate-Body Leakage Current, Forward

Gate-Body Leakage Current, Reverse

= 0 V, ID = 250 µA

V

GS

I

= 250 µA, Referenced to 25°C

D

V

= 100 V, VGS = 0 V

DS

V

= 80 V, TC = 150°C

DS

V

= 25 V, VDS = 0 V

GS

= -25 V, VDS = 0 V

V

GS

100 -- -- V

-- 0.1 -- V/°C

-- -- 1 µA

-- -- 10 µA

-- -- 100 nA

-- -- -100 nA

On Characteristics

V
R

g

FS

GS(th)

DS(on)

Gate Threshold Voltage
Static Drain-Source

On-Resistance
Forward Transconductance

V

= VGS, ID = 250 µA

DS

= 10 V, ID = 22 A

V

GS

= 30 V, ID = 22 A

V

DS

(Note 4)

2.0 -- 4.0 V

-- 0.012 0.016 Ω

-- 41 -- S

Dynamic Characteristics

C

iss

C

oss

C

rss

Input Capacitance
Output Capacitance -- 900 1170 pF
Reverse Transfer Capacitance -- 200 260 pF

= 25 V, VGS = 0 V,

V

DS

f = 1.0 MHz

-- 2500 3250 pF

Switching Characteristics

t

d(on)

t

r

t

d(off)

t

f

Q
Q
Q

g
gs
gd

Turn-On Delay Time
Turn-On Rise Time -- 360 730 ns
Turn-Off Delay Time -- 100 210 ns
Turn-Off Fall Time -- 160 330 n s
Total Gate Charge
Gate-Source Charge -- 17 -- nC
Gate-Drain Charge -- 42 -- nC

= 40 V, ID = 90 A,

V

DD

= 25 Ω

R

G

V

= 64 V, ID = 90 A,

DS

V

GS

= 10 V

(Note 4, 5)

(Note 4, 5)

-- 30 70 ns

-- 84 110 nC

Drain-Source Diode Characteristics and Maximum Ratings

I

S

I

SM

V

SD

t

rr

Q

rr

Notes:

1. Repetitive Rating : Pulse width limited by maximum junction temperature

2. L = 0.97mH, IAS = 44A, VDD = 25V, RG = 25 Ω, Starting TJ = 25°C

3. ISD ≤ 90A, di/dt ≤ 300A/µs, VDD ≤ BV

4. Pulse Test : Pulse width ≤ 300µs, Duty cycle ≤ 2%

5. Essentially independent of operating temperature

©2000 Fairchild Semiconductor International

Maximum Continuous Drain-Source Diode Forward Current -- -- 44 A
Maximum Pulsed Drain-Source Diode Forward Current -- -- 176 A

= 0 V, IS = 44 A

Drain-Source Diode Forward Voltage
Reverse Recovery Time
Reverse Recovery Charge -- 265 -- nC

Starting TJ = 25°C

DSS,

V

GS

= 0 V, IS = 90 A,

V

GS

/ dt = 100 A/µs

dI

F

-- -- 1.5 V

-- 87 -- ns

(Note 4)

Rev. A1, January 2001

Typical Characteristics

FQPF90N08

V

GS

Top : 15.0 V

2

10

10.0 V

8.0 V

7.0 V

6.0 V

5.5 V

5.0 V
Bottom : 4.5 V

1

10

, Drain Current [A]

D

I

0

10

-1

10

0

10

※

Notes :

1. 250μs Pulse Test

2. T

= 25

C

VDS, Drain-Source Voltage [V]

50

40

],

Ω

30

[m

DS(ON)

20

R

Drain-Source On-Resistance

10

0

0 100 200 300 400

VGS = 10V

VGS = 20V

※

Note : T

ID , Drain Curren t [A]

2

10

1

10

℃

175

℃

25

0

10

, Dra i n Current [A]

D

I

℃

1

10

-1

10

246810

℃

-55

※

Notes :

1. V

= 30V

DS

2. 250μs Pulse Tes t

VGS, Gate-Source Voltage [V]

Figure 2. Transfer CharacteristicsFigure 1. On-Region Char act er i stic s

2

10

1

10

0

10

, Reverse Drain Current [A]

175

DR

℃

= 25

J

I

-1

10

0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8

℃

25

℃

※

Notes :

= 0V

1. V

GS

2. 250μs Pulse Test

VSD, Sou r c e-Drain voltage [V]

Figure 3. On-Resistance Variati on vs.

Drain Current and Gate Voltage

Figure 4. Body Diode Forward Voltage

Variation vs. Source Current

and Temperature

VDS = 40V

VDS = 64V

※

Note : I

= 90A

D

7000

6000

5000

4000

3000

2000

Capacitance [pF]

1000

0

-1

10

C

= Cgs + Cgd (Cds = shorted)

iss

= Cds + C

C

oss

gd

C

= C

rss

gd

※

Notes :

= 0 V

C
C

C

0

10

1. V

10

1

GS

2. f = 1 MHz

iss

oss

rss

VDS, Drain-Source Voltage [V]

12

10

8

6

4

, Gate-Source Voltage [V]

2

GS

V

0

020406080100

QG, Tota l Gate Charge [n C]

Figure 5. Capacitance C haracteristics Figure 6. Gate Charge Characteristics

©2000 Fairchild Semiconductor International Rev. A1, January 2001