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Data Sheet No. PD 60068-
I
Description
The IRSF3021 Lamp and DC motor driver is a fully protected
three terminal monolithic Smart Power MOSFET that fea-
tures current limiting, over-temperature protection, ESD
protection and over-voltage protection.
The on-chip protection circuit limits the drain current at 5.5A
(typical) in the on-state, when the load is short circuited. The
over-temperature circuitry turns off the Power MOSFET when
the junction temperature exceeds 165C (typical). The device
restarts automatically once it has cooled down below the reset
temperature.
The IRSF3021 is specifically designed for driving loads that
require overload protection and in-rush current control while
operating in automotive and industrial environments. Tar-
geted applications include resistive loads such as lamps or
capacitive loads such as airbag squibs and DC motor drives.
FULLY PROTECTED POWER MOSFET SWITCH
Features
Controlled slew rate reduces EMI
Over temperature protection with auto-restart
Linear current-limit protection
Active drain-to-source clamp
ESD protection
Lead compatible with standard Power MOSFET
Low operating input current
Monolithic construction
Applications
Cabin Lighting
Airbag System
Programmable Logic Controller
DC Motor Drive
IRSF3021
(NOTE: For new designs, we
recommend IR's new products IPS021 and IPS021L)
Product Summary
Source
SOURCE
V
ds(clamp)
50V
R
ds(on)
200m
I
lim
5.5A
T
j(sd)
165
o
C
E
AS
200mJ
Packages
3 Lead
TO220AB
3 Lead
SOT223
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1
Block Diagram
Drain
Input
DRAIN
INPUT
IRSF3021
2
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N
OTES
:
x
When mounted on a 1" square PCB (FR-4 or G10 material). For recommended footprint and soldering techniques,
refer to International Rectifier Application Note AN-994.
y
E
AS
is tested with a constant current source of 6A applied for 700S with V
in
= 0V and starting T
j
= 25oC.
z
Input current must be limited to less than 5mA with a 1k
resistor in series with the input when the Body-Drain Diode is
forward biased.
Symbol Parameter
Min.
Typ.
Max. Units Test Conditions
R
thjc
Junction to case
--
--
4
o
C/W TO-220AB
R
thja
Junction to ambient
--
--
60
R
thjc
Junction to case
--
--
40
o
C/W SOT-223
R
thja
Junction to PCB
--
--
60
Thermal Characteristics
Symbol Parameter
Min.
Typ.
Max. Units Test Conditions
V
ds,clamp
Drain to source clamp voltage
50
56
65
V
I
ds
= 6A, t
p
= 700
S
R
ds(on)
Drain to source on resistance
--
155
200
m
V
in
= 5V, I
ds
= 2A
I
dss
Drain to source leakage current
--
--
250
A
V
ds
= 40V, V
in
= 0V
V
th
Input threshold voltage
1.0
2.0
3.0
V
V
ds
= V
in
, I
ds
+ I
in
= 10mA
I
i,on
Input supply current
(Normal Operation)
--
100
300
A
V
in
= 5V
I
i,off
Input supply current
(Protection Mode)
--
250
500
A
V
in
= 5V
V
in, clamp
Input clamp voltage
9
10
--
I
in
= 1mA
V
sd
Body-drain diode forward drop
--
1.5
--
I
ds
= -2A, R
in
= 1k
Static Electrical Characteristics
(T
C
= 25
o
C unless otherwise specified.)
V
Absolute Maximum Ratings
Absolute Maximum Ratings indicate sustained limits beyond which damage to the device may occur.
(T
C
= 25
o
C unless otherwise specified.)
Symbol Parameter
Min.
Max.
Units
Test Conditions
Vds, max Continuous drain to source voltage
--
50
V
Vin, max Continuous input voltage
-0.3
10
Ids
Continuous drain current
--
self limited
A
Pd
Power dissipation
--
30
W
Tc
25
o
C, TO220
--
3
W
Tc
25
o
C, SOT223
EAS
Unclamped single pulse inductive energy
--
200
mJ
Vesd1
Electrostatic discharge voltage
(Human Body Model)
--
4000
V
100pF, 1.5k
Vesd2
Electrostatic discharge voltage
(Machine Model)
--
1000
200pF, 0
TJop
Operating junction temperature range
-55
150
TStg
Storage temperature range
-55
150
o
C
TL
Lead temperature (soldering, 10 seconds)
--
300
IRSF3021
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3
Switching ElectricalCharacteristics
(V
CC
= 14V, resistive load (R
L
) = 10
,
R
in
= 100
.
Specifications measured at T
C
= 25oC unless other-
wise specified.)
Symbol Parameter
Min.
Typ.
Max. Units Test Conditions
t
don
Turn-on delay time
--
10
50
V
in
= 0V to 5V, 50% to 90%
t
r
Rise Time
--
30
80
s
V
in
= 0V to 5V, 90% to 10%
t
doff
Turn-off delay time
--
20
60
V
in
= 5V to 0V, 50% to 10%
t
f
Fall time
--
15
50
V
in
= 5V to 0V, 10% to 90%
SR
Output positive slew rate
-4
--
4
V/
s
V
in
= 0V to 5V, +dVds/dt
SR
Output negative slew rate
-4
--
4
V
in
= 5V to 0V, -dVds/dt
Protection Characteristics
(T
C
= 25
o
C unless otherwise specified.
Symbol Parameter
Min.
Typ.
Max. Units Test Conditions
I
ds(lim)
Current limit
3.0
5.5
8.0
A
Vin = 5V, Vds
= 14V
T
j(sd)
Over temperature shutdown threshold
155
165
--
o
C
Vin = 5V, Ids = 2A
V
protect
Min. input voltage for over-temp function
--
3
--
V
t
Iresp
Current limit response time
--
TBD
--
s
I
peak
Peak short circuit current
--
10
--
A
t
Tresp
Over-temperature response time
--
TBD
--
s
Lead Assignments
Part Number
(2) D
1 2 3
In D S
3 Lead - SOT223
IRSF3021L
1 2 3
In D S
3 Lead - TO220
2 (D)
IRSF3021
IRSF3021
4
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(TO-261AA) 01-0022 05
Case Outline - SOT-223
IRSF3021
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5
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105
IR EUROPEAN REGIONAL CENTRE: 439/445 Godstone Rd, Whyteleafe, Surrey CR3 0BL, United Kingdom
Tel: ++44 (0) 20 8645 8000
IR JAPAN: K&H Bldg., 2F, 30-4 Nishi-Ikebukuro 3-Chome, Toshima-Ku, Tokyo, Japan 171-0021 Tel: 81 (0) 33 983 0086
IR HONG KONG: Unit 308, #F, New East Ocean Centre, No. 9 Science Museum Road, Tsimshatsui East, Kowloon,
Hong Kong Tel: (852) 2803-7380
Data and specifications subject to change without notice. 4/11/2000
Tape & Reel - SOT223
01-0028 05 / 01-0008 02
IRGB 01-3026 01
Case Outline 3 Lead - TO220
NOTES:
2
2X
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