TPD1044F
Toshiba Intelligent Power Device
TPD1044F
Silicon Monolithic Power MOS Integrated Circuit
Low-Side Switch for Motor, Solenoid and Lamp Drive
The TPD1044F is a low-side switch.
The IC has a vertical MOSFET output which can be directly
driven from a CMOS or TTL logic circuit (e.g., an MPU). The IC
is equipped with intelligent self-protection functions.
Features
•
A monolithic power IC with a new structure combining a
control block and a vertical power MOSFET (L
2
-π-MOSⅤ) on
single chip.
Can directly drive a power load from a CMOS or TTL logic.
Built-in protection circuits against overvoltage (active clamp), overtemperature (thermal shutdown), and
overcurrent (current limiter).
Low Drain-Source ON-resistance: R
DS (ON)
=
0.6
Ω
(max) (@V
IN
=
5 V, I
D
=
0.5 A, T
ch
=
25°C)
Low Leakage Current: I
DSS
=
10
μA
(max) (@V
IN
=
0 V, V
DS
=
30 V, T
ch
=
25°C)
Low Input Current: I
IN
=
300
μA
(max) (@V
IN
=
5 V, T
ch
=
25°C)
“PS-8” package with embossed-tape packing.
SON8-P-0303-0.65
Weight: 0.017 g (typ.)
•
•
•
•
•
•
Pin Assignment
(top view)
Marking
Part No. (or abbreviation code)
DRAIN
1
8
DRAIN
1044F
※
Lot No.
DRAIN
2
7
DRAIN
DRAIN
3
6
DRAIN
※
Lot No.
SOURCE
4
5
IN
(TOP VIEW)
Week of manufacture
(01 for first week of year; continuing up to 52 or 53)
Year of manufacture
(The last digit of the calendar year)
Note 1: Due to its MOS structure, this product is sensitive to static electricity.
Start of commercial production
2003-09
1
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TPD1044F
Block Diagram
1 DRAIN
2 DRAIN
3 DRAIN
6 DRAIN
IN 5
Overtemperature
Detection/Protection
SOURCE 4
Overcurrent
Detection/Protection
7 DRAIN
8 DRAIN
Pin Description
Pin No.
1,2,3,6,7,8
4
5
Symbol
DRAIN
SOURCE
IN
Pin Description
Drain current is limited (by current limiter) if it exceeds 1 A (min) in order to protect the IC.
Source pin.
Input pin.
This pin is connected to a pull-down resistor internally, so that even when input wiring is
open-circuited, output can never be turned on inadvertently.
2
2013-11-01
TPD1044F
Timing chart
Input signal
hysteresis
V
(CL)DSS
Inductive load
Normal
Current limiting
(limiter)
Active clamp
Thermal
shutdown
V
DS
H
L
H
H
H
H
Output state
OFF
ON
OFF
current limiting(limiter)
OFF
OFF
Operating state
Normal
Overcurrent
(load short)
Overtemperature
Overcurrent
detection
Channel temperature
Overtemperature
detection
Drain-source
voltage
V
DD
Drain current
Note 2: The overtemperature detector circuits feature hysteresis. After overtemperature is detected, normal operation
is restored only when the channel temperature falls by the hysteresis amount (5°C typ.) in relation to the
overtemperature detection temperature.
Truth table
IN
L
H
L
H
L
H
3
2013-11-01
TPD1044F
Absolute Maximum Ratings
(Ta
=
25°C)
Characteristics
Drain-source voltage
Drain current
Input voltage
Power dissipation (Note 3)
Single pulse active clamp capability (Note 4)
Active clamp current
Repetitive active clamp capability (Note 5)
Operating temperature
Channel temperature
Storage temperature
Symbol
V
DS(DC)
I
D
V
IN
P
D
E
AS
I
AR
E
AR
T
opr
T
ch
T
stg
Rating
41
Internally Limited
−0.3~7
0.9
125
1
0.09
−40~125
150
−55~150
Unit
V
A
V
W
mJ
A
mJ
°C
°C
°C
Thermal Characteristics
Characteristics
Thermal resistance, channel to ambient
(Note 3)
Symbol
R
th (ch-a)
Max
138.9
Unit
°C/W
Note:
Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the
significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even
if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum
ratings and the operating ranges.
Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook
(“Handling Precautions”/Derating Concept and Methods) and individual reliability data (i.e. reliability test
report and estimated failure rate, etc).
Note 3:
Drive operation: Mounted on glass epoxy board [25.4mm
×
25.4mm
×
0.8mm]
Note 4: Active clamp capability (single pulse) test condition
V
DD
=
40 V, T
ch
=
25°C(initial), L
=
50 mH, I
AR
=
1 A, R
G
=
25
Ω
Note 5: Repetitive rating, pulse width limited by maximum channel temperature.
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TPD1044F
Electrical Characteristics(Ta = 25℃)
Characteristics
Drain-source clamp voltage
Input threshold voltage
Protective circuit operation input
voltage range
Drain cut-off current
Input current
Drain-source on resistance
Overtemperature detection
Overcurrent detection
Switching time
Symbol
V
(CL) DSS
V
th
V
IN (opr)
I
DSS
I
IH (1)
I
IH (2)
R
DS (ON)
T
OT
I
OC
t
on
t
off
Test
circuit
-
-
-
-
-
-
-
-
1
2
Test condition
V
IN
=
0 V,I
D
=
1 mA
V
DS
=
13 V,I
D
=
10 mA
-
V
IN
=
0 V,V
DS
=
30 V
V
IN
=
5 V, at normal operation
V
IN
=
5 V, when overcurrent
protective circuit is actuated
V
IN
=
5 V, I
D
=
0.5 A
V
IN
=
5 V
V
IN
=
5 V
V
DD
=
13 V,V
IN
=
0 V/5 V, I
D
=
0.5 A
Min
41
1.0
3
-
-
-
-
150
1.0
-
-
Typ.
-
-
-
-
-
-
0.44
160
1.8
10
15
Max
60
2.8
6
10
300
350
0.6
-
-
-
-
μA
Unit
V
V
V
μA
Ω
°C
A
μs
Test circuit 1
Overcurrent measuring circuit
Test circuit
Measured waveforms
R
L
large
R
L
R
L
small
I
OC
I
D
SOURCE
0
V
DD
=13V
I
D
R
L
DRAIN
IN
V
IN
=
5 V
TPD1044F
Test circuit 2
Switching time measuring circuit
Test circuit
V
DD
=13V
I
D
=0.5A
DRAIN
IN
V
IN
TPD1044F
P.G.
SOURCE
V
DS
Measured waveforms
5V
V
IN
10%
90%
13 V
V
90%
V
DS
t
on
10%
t
off
5
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