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PDF NJW4810A Data sheet ( Hoja de datos )
| Número de pieza | NJW4810A | |
| Descripción | Dual Half Bridge Driver | |
| Fabricantes | New Japan Radio | |
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NJW4810A
Dual Half Bridge Driver
GENERAL DESCRIPTION
The NJW4810A is a general-purpose dual half bridge driver
capable of supplying 1A current. Output duty=100% can be
operated by high side P channel MOSFET. It can use as a full
bridge driver by connecting VDD1 and VDD2.
The internal gate driver drives high-side/low-side power
MOSFET; therefore, it is able to 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.
FEATURES
Output Switch Current 1A
Operating Voltage
8.0V to 40V
Thermal Shut Down
Over Current Protection
Under Voltage Lockouts
Fault Indicator Output
High Heat Radiation Package
Package Outline
HSOP8
■ PACKAGE OUTLINE
NJW4810AGM1
■PIN CONFIGURATION
18
27
36
45
Exposed PAD on
backside connect to GND
1. IN2
2. IN1
3. VDD1
4. OUT1
5. GND
6. OUT2
7. VDD2
8. FLT
Ver.2015-02-10
-1-
1 page  
NJW4810A
ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
(Unless otherwise noted, V+1= V+2=12V, Ta=25C)
TEST CONDITIONS
MIN. TYP. MAX. UNIT
General Characteristics
Quiescent Current 1 (Operating)
Quiescent Current 2 (Switching)
IQ1 VIN1=VIN2=0V
V+1
V+2
VIN1=VIN2=0V to 3V,
V+1
IQ2
fIN1= fIN2=750kHz
antiphase 50% Duty Cycle
V+2
–
–
–
–
0.9 1.7
mA
0.3 0.8
3.7 5.5
mA
3.2 5.0
Output Block
High-side SW ON Resistance
Low-side SW ON Resistance
Over Current Limit (*3)
Over Current Limit
Protection Time (*3)
Output Rise Time
Output Fall Time
Dead Time
Output Rise Delay Time
RDSH
RDSL
ILIMIT
tOCP
tr
tf
Dt
td_ON
IOSOURCE=600mA
IOSINK=600mA
High-side and Low-side
High-side and Low-side
RFLT=47k, VFLT=5V
VIN1=VIN2= 0 to 3V
VIN1=VIN2= 3 to 0V
VIN1=VIN2= 0 to 3V
VIN1=VIN2= 0 to 3V
– 1.0 1.8
– 0.75 1.3
1 2 3A
15 30 80 ms
– 3 – ns
– 5 – ns
– 50 – ns
– 120 – ns
Output Fall Delay Time
td_OFF VIN1=VIN2= 3 to 0V
– 120 – ns
High-side SW Leak Current
at OFF state
Low-side SW Leak Current
at OFF state
OUT pin – VDD pin
Potential Difference
GND pin – OUT pin
Potential Difference
IOLEAKOUTH
V1=V2=5.5V,
VOUT1=VOUT2=0V
IOLEAKOUTL
V1=V2=5.5V,
VOUT1=VOUT2=5.5V
VPDOV IORH=1A, V1=V2=5.5V
VPDGO IORL=1A, V1=V2=5.5V
– – 1 A
– – 1 A
– 0.9 1.5 V
– 0.9 1.5 V
(*3): The overcurrent detection time may take 1s (max). During this time overcurrent protection circuit does not detect
an overcurrent. Therefore, you should control the pulse width and frequency of IN1/IN2 pin to prevent a continuous
over-current in short-term.
Input Circuit Block
Input pin High Voltage
Input pin Low Voltage
Input pin sink current
VIHIN
VILIN
IIIN
VIN1=VIN2= 5.5V
Under Voltage Lockout (UVLO) Block
UVLO Release Voltage (*4)
VUVLO2 V1=V2=LH
UVLO Operation Voltage (*4)
VUVLO1 V1=V2=HL
UVLO Hysteresis Voltage
VUVLO VUVLO2-VUVLO1
(*4): UVLO operates at each line (V1 and V2)
Fault Function (FLT pin)
Low Level Output Voltage
OFF Leak Current
VLFLT IFLT=500A
IOLEAKFLT V1=V2=5.5V, VFLT=5.5V
2.0 – 5.5 V
0 – 0.8 V
– 0.01 1 A
6.3 7.0 7.7 V
6.0 6.7 7.4 V
– 0.3 – V
– 0.25 0.5 V
– – 1 A
Ver.2015-02-10
-5-
5 Page 
CHARACTERISTICS
High-side SW Over Current Limit Protection Time
vs.Ambient Temperature
(V+1=V+2=12V)
50
45
40
35
30
25
20
15
10
5
0
-50 -25 0 25 50 75 100 125 150
Ambient Temperature [ºC]
UVLO Release/Operation Voltage
vs.Ambient Temperature
VDD1 side
10
9
8
Release Voltage
7
6 Operating Voltage
5
-50 -25 0 25 50 75 100 125 150
Ambient Temperature [ºC]
NJW4810A
Low-side SW Over Current Limit Protection Time
vs.Ambient Temperature
(V+1=V+2=12V)
50
45
40
35
30
25
20
15
10
5
0
-50 -25 0 25 50 75 100 125 150
Ambient Temperature [ºC]
UVLO Release/Operation Voltage
vs.Ambient Temperature
VDD2 side
10
9
8
Release Voltage
7
6 Operating Voltage
5
-50 -25 0 25 50 75 100 125 150
Ambient Temperature [ºC]
Ver.2015-02-10
- 11 -
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet NJW4810A.PDF ] | |
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