TPD1038F
Toshiba Intelligent Power Device
TPD1038F
Silicon Monolithic Power MOS Integrated Circuit
Motor, Solenoid, Lamp Drivers
High-side Power Switch
The TPD1038F is a monolithic power IC for high-side switches.
The IC has a vertical MOS FET output which can be directly
driven from a CMOS or TTL logic circuit (e.g., an MPU). The
device offers intelligent self-protection and diagnostic functions.
Features
•
A monolithic power IC with a structure combining a control
block (Bi-CMOS) and a vertical power MOS FET on a single
chip.
One side of load can be grounded to a high-side switch.
Can directly drive a power load from a microprocessor.
Built-in
protection
short-circuiting.
against
overheating
and
load
SOP8-P-1.27A
Weight：0.08g(typ.)
•
•
•
•
•
•
•
Incorporates a diagnosis function that allows diagnosis output to be read externally at load short-circuiting,
opening, or overheating.
Up to
-(50-V
DD
)½
-(60-V
DD
) of counterelectromotive force from an L load can be applied.
Low on-resistance : R
DS(ON)
=120mΩ(max) ( @ V
DD
= 12 V、Ta = 25℃、Io = 2 A)
8-pin SOP package for surface mounting that can be packed in tape
Pin Assignment
OUT
1
8
V
DD
Marking
GND
2
7
V
DD
TPD1038
F
Part No. (or abbreviation code)
Lot No.
A line indicates
lead (Pb)-free package or
lead (Pb)-free finish.
DIAG
3
6
V
DD
IN
4
(TOP VIEW)
5
V
DD
Due to its MOS structure, this product is sensitive to static electricity.
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2006-10-31
TPD1038F
Block Diagram
Bandgap
5V regulator
V
DD
charge pump
IN
driver
MOSFET
(π-MOSⅤ)
current detection
overheat detection
DIAG
OUT
GND
Pin Description
Pin No.
1
2
3
4
5,6,7,8
Symbol
OUT
GND
DIAG
IN
V
DD
Function
Output pin. When the load is short-circuited and current in excess of the detection current (3A min)
flows to the output pin, the output automatically turns on or off.
Ground pin.
Self-diagnosis detection pin.Goes low when overheating is detected or when output is short circuit
with input on (high). N-channel open drain.
Input pin. Input is CMOS compatible, with pull down resistor connected. Even if the input is open,
output will not accidentally turn on.
Power pin.
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2006-10-31
TPD1038F
Timing Chart
Input signal
Hysteresis
5℃ (typ.)
T
ch
Channel temperature
Overcurrent detection
Overheating detection 150℃(min)
Load open
Output current
Output signal
Diagnostic output
Thermal shutdown
Load open detection
Current limit
Normal
Truth Table
Input signal
H
L
H
L
H
L
H
L
H
L
Diagnosis
output
H
L
L
L
L
L
H
H
L
H
Output signal
H
L
L
L
L
L
H
H
L
H
Output state
on
off
current limit
(switching)
off
off
off
on
off
off
off
Overheating
Operating state
Normal
Load short
Load open
Overheating and
load open
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2006-10-31
TPD1038F
Absolute Maximum Ratings (Ta = 25°C)
Characteristics
Drain-source voltage
Supply voltage
DC
Pulse
DC
Pulse
Symbol
V
DS
V
DD(1)
V
DD(2)
V
IN(1)
V
IN(2)
V
DIAG
I
O
I
IN
I
DIAG
P
D(1)
P
D(2)
Topr
T
ch
T
stg
Rating
60
25
60(R
S
=1Ω,τ=250ms)
－0.5½12
V
DD(1)
+1.5(t=100ms)
－0.5½25
Internally limited
±10
5
1.1
0.425
－40½110
150
－55½150
Unit
V
V
V
V
V
V
A
mA
mA
W
W
°C
°C
°C
Input voltage
Diagnosis output voltage
Output current
Input current
Diagnosis current
Power dissipation
(Note 1-a)
Power dissipation
(Note 1-b)
Operating temperature
Channel temperature
Storage temperature
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).
Thermal Resistance
Characteristic
Thermal resistance
Symbol
R
th(ch-a)
Rating
113.5 (Note1-a)
294.0 (Note1-b)
Unit
°C /W
Note 1:
1-a : Mounted on glass epoxy board (a)
1-b : Mounted on glass epoxy board (b)
FR-4
25.4×25.4×0.8
(Unit：mm)
FR-4
25.4×25.4×0.8
(Unit：mm)
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2006-10-31
TPD1038F
Electrical Characteristics (T
a
=25°C)
Characteristics
Operating supply voltage
Current dissipation
H-level input voltage
L-level input voltage
H-level input current
On resistance
Output leakage current
Diagnosis
output voltage
Diagnosis
output current
“L”-level
“H”-level
Symbol
V
DD(OPR)
I
DD
V
IH
V
IL
I
IH
R
DS(ON)
I
OL
V
DL
I
DH
I
OC(1)
(Note2)
I
OC(2)
(Note3)
T
OT
R
op
t
on
t
off
t
DLH
t
DHL
V
clamp
Test
circuit
－
－
－
－
－
－
－
－
－
1½2
3
－
－
4
5
－
Test condition
－
V
DD
=12V, V
IN
=0V, R
L
=10Ω
V
DD
=12V
V
DD
=12V
V
DD
=12V, V
IN
=5V
V
DD
=12V, I
O
=2A
V
DD
=12V
V
DD
=12V, V
IN
=0V, I
DL
=1mA
R
L
=10Ω
V
DD
=12V, V
IN
=5V, R
L
=10Ω,
V
DH
=12V
V
DD
=12V
V
DD
=12V, R
L
=0.1Ω
V
DD
=12V
V
DD
=12V, V
IN
=0V
V
DD
=12V, R
L
=10Ω
V
DD
=12V, R
L
=10Ω
V
DD
=12V, V
IN
=0V, I
O
=1A, L=10mH
min
6
－
3.5
－
－
－
－
－
－
3
－
150
5
－
－
－
－
-(60-
V
DD
)
typ.
12
－
－
－
－
－
－
－
－
－
－
－
17
－
－
70
22
－
max
18
3
－
1.5
200
0.12
1
0.4
10
9
10
200
－
100
40
－
－
-(50-
V
DD
)
Unit
V
mA
V
V
μA
Ω
mA
V
μA
A
A
℃
kΩ
μs
μs
μs
μs
Ｖ
Over current detection
Overheating detection
Load open detection (Note4)
Switching time
Diagnosis delay time
Output clamp voltage
(Note 2) Over-current detection
(Note 3) Peak current @ current limit function
(Note 4) Load open detection function :
V
DD
= 8
½
18V
Test Circuit 1
Over current detection I
OC(1)
：Over
current detection when load current is increased while VIN = "H"
5V
2.5kΩ
V
DIAG
OUT
DIAG
V
DD
=12V
I
OC(1)
0
I
O
R
L
V
DIAG
0V
＜0.4V
V
DL
5V
I
O
TPD1038F
5V
V
IN
5
2006-10-31
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