NJW4801
Small PKG Half Bridge Driver
GENERAL DESCRIPTION
The NJW4801 is a general purpose, half bridge power driver
capable of supplying
450mA
current.
The internal gate driver drives high-side/low-side power
MOSFET, therefore, it has fast switching.
Additionally, it has protection features such as over current
protection and thermal shutdown. And in the case of failure, it can
output a fault flag.
It is suitable for power switching applications of DSP/micro
controller.
■
PACKAGE OUTLINE
NJW4801R
FEATURES
Output Switch Current
450mA
Operating Voltage
8.0V to 35V
High-side and Low-side SW is available independently-function
Up to 700kHz Switching Frequency
Thermal Shut Down
Over Current Protection
Under Voltage Lockout
Fault Indicator Output
Stand-by Current
I
QSTBY
=3A (typ.)
Package Outline
MSOP8 (VSP8)*
* MEET JEDEC MO-187-DA
PIN CONFIGURATION
1
2
3
4
8
7
6
5
1. STBY
2. IN1
3. IN2
4. FLT
5. GND
6. OUT2
7. OUT1
8. VDD
NJW4801R
Ver.2014-02-05
-1-
NJW4801
BLOCK DIAGRAM
Under Voltage
Lock Out
Thermal
Shut Down
Ov er Current
Protection
VDD
FLT
OUT1
OUT2
IN1
IN2
Control
Logic
GND
STBY
-2-
Ver.2014-02-05
NJW4801
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Supply Voltage
V
+
Input Voltage
V
STBY
V
IN1
Input Voltage
V
IN2
FLT pin Voltage
V
FLT
Power Dissipation
Operating Junction Temperature
Operating Temperature Range
Storage Temperature Range
P
D
Tj
T
opr
T
stg
(Ta=25°C)
REMARKS
VDD-GND Pin
STBY-GND Pin
IN1/2-GND Pin
FLT-GND Pin
–
–
–
–
MAXIMUM RATINGS
40
0.3
to 6
0.3
to 6
0.3
to 6
595 (*1)
805 (*2)
40
to
150
40
to
85
50
to
150
UNIT
V
V
V
V
mW
C
C
C
(*1): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 2Layers)
(*2): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 4Layers),
internal Cu area: 74.2×74.2mm
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
MIN.
Operating Voltage
V
opr
8
Output Switch Current
I
OM
0
Input Voltage
V
STBY
0
Input Voltage
V
IN1
, V
IN2
0
FLT pin Voltage
V
FLT
0
TYP.
–
–
–
–
–
MAX.
35
450
5.5
5.5
5.5
UNIT
V
mA
V
V
V
(Ta=25°C)
REMARKS
VDD-GND Pin
OUT-GND Pin
STBY-GND Pin
IN1/2-GND Pin
FLT-GND Pin
THERMAL CHARACTERISTICS
PARAMETER
SYMBOL
Thermal Resistance between
Tj and Ta
Thermal Resistance between
Tj and T
C1
ja
jt
THERMAL RESISTANCE
210 (*1)
155 (*2)
33 (*1)
25 (*2)
(Ta=25°C)
UNIT
C/W
C/W
(*1): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 2Layers)
(*2): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 4Layers),
internal Cu area: 74.2×74.2mm
Power Dissipation vs. Ambient Temperature
1000
(mW)
800
600
400
200
0
0
25
50
75
Ambient Temperature Ta (
o
C)
100
(Topr=-40~+85 C, Tj=
~150
C)
At on 4 layer PC Board
At on 2 layer PC Board
o
o
Ver.2014-02-05
Power Dissipation P
D
-3-
NJW4801
ELECTRICAL CHARACTERISTICS
PARAMETER
General Characteristics
Quiescent Current 1 (Operating)
Quiescent Current 2 (Switching)
Quiescent Current 3 (Standby)
Output Block
High-side SW ON Resistance (OUT1)
Low-side SW ON Resistance (OUT2)
Over Current Limit
Turn-on Time
Turn-off Time
Dead Time
Output Rise Propagation Delay Time
Output Fall Propagation Delay Time
OUT1–VDD pin voltage Difference
GND–OUT2 pin Voltage Difference
OUT2–VDD pin Voltage Difference
OUT1–GND pin Volatge Difference
OUT1 Pin Leak Current
OUT2 Pin Leak Current
SYMBOL
(Unless other noted, V
+
=12V, V
STBY
=0V, Ta=25C)
TEST CONDITIONS
MIN.
TYP.
MAX.
UNIT
I
Q1
I
Q2
I
QOFF
V
IN1
=V
IN2
=0V
V
IN1
=V
IN2
=0 to 3V,
f
PWM1
=f
PWM2
=700kHz,
50% Duty Cycle
V
STBY
=5V, V
IN1
=V
IN2
=0V
–
–
–
1
3
2.9
1.4
4
4
mA
mA
A
R
DSH
R
DSL
I
LIMIT
tr
tf
Dt
t
d_ON
t
d_OFF
V
PDOV
V
PDGO
V
RDOV
V
RDGO
I
OLEAK1
I
OLEAK2
I
OSOURCE
=450mA
I
OSINK
=450mA
High-side and Low-side
V
IN1
=V
IN2
=0 to 3V,
OUT1-OUT2 pin is short
V
IN1
=V
IN2
=0 to 3V,
OUT1-OUT2 pin is short
V
IN1
=V
IN2
=0 to 3V,
OUT1-OUT2 pin is short
V
IN1
=V
IN2
=0 to 3V,
OUT1-OUT2 pin is short
V
IN1
=V
IN2
=0 to 3V,
OUT1-OUT2 pin is short
I
ORH
=450mA
I
ORL
=450mA
I
ORH
=450mA
I
ORL
=450mA
V
+
=35V, V
IN1
=0V, V
OUT1
=0V
V
+
=35V,V
IN2
=3V,V
OUT2
=35V
–
–
600
–
–
–
–
–
–
–
–
–
–
–
0.65
0.65
1200
5
5
50
100
100
0.87
0.82
0.96
1.13
–
–
1
1
1800
–
–
–
–
–
1.22
1.15
1.25
1.46
1
1
mA
ns
ns
ns
ns
ns
V
V
V
V
A
A
Input Circuit Block
STBY pin High Voltage (Standby Mode)
V
IHSTBY
STBY pin Low Voltage(Operating Mode)
V
ILSTBY
STBY Pin Sink Current
I
ISTBY
V
STBY
=1V
IN1/IN2 Pin High Voltage
V
IHIN1
, V
IHIN2
IN1/IN2 Pin Low Voltage
V
ILIN1
, V
ILIN2
IN1/IN2 Pin Sink Current
I
IIN1
, I
IIN2
V
IN1
, V
IN2
=5.5V
Under Voltage Lockout (UVLO) Block
UVLO Release Voltage
UVLO Operation Voltage
UVLO Hysteresis Voltage
FLT Function (FLT pin)
Low Level Output Voltage
OFF Leak Current
2.4
0
1
2.4
0
–
–
–
2
–
–
–
5.5
0.4
4
5.5
0.9
1
V
V
A
V
V
A
V
UVLO2
V
UVLO1
ΔV
UVLO
V
UVLO2
-V
UVLO1
6.4
6
–
7.1
6.7
0.4
7.8
7.4
–
V
V
V
V
LFLT
I
OLEAKFLT
I
FLT
=500A
V
FLT
=5.5V
–
–
0.25
–
0.5
1
V
A
-4-
Ver.2014-02-05
NJW4801
PIN OPERATION TABLE
INPUT
IN1
L
L
H
H
IN2
L
H
L
H
INPUT
IN1, IN2
L or H
L or H
L or H
STBY
L
H
L
INPUT
Tj
Tj
150C
–
I
OUT
–
I
OUT
I
LIMIT
FLT
OFF
OFF
VDD
V
+
V
RUVLO
–
+
V
V
DUVLO
FLT
ON
OFF
OFF
OUTPUT
High-side SW
Low-side SW
(OUT1)
(OUT2)
OFF
ON
OFF
OFF
ON
ON
ON
OFF
OUTPUT
High-side SW
(OUT1)
OFF or ON
OFF
OFF
Low-side SW
(OUT2)
OFF or ON
OFF
OFF
Mode
Active
Stand-by
UVLO
OUTPUT
High-side SW
(OUT1)
OFF
OFF
Low-side SW
(OUT2)
OFF
OFF
Mode
TSD
OCP
Ver.2014-02-05
-5-
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