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PDF NJU7381A Data sheet ( Hoja de datos )
| Número de pieza | NJU7381A | |
| Descripción | LOW VOLTAGE OPERATION DUAL H BRIDGE DRIVER | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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NJU7381A
LOW VOLTAGE OPERATION DUAL H BRIDGE DRIVER
■ GENERAL DESCRIPTION
The NJU7381A is a dual H-bridge driver IC that features low
voltage operation and low quiescent current.
The control method is 2 logic Inputs (2-IN) that includes
standby mode.
The independent comparator circuit can be used for position
sensing signal processing and the others.
Small package makes the NJU7381A suitable for small stepper
motor and DC motor, such as portable applications.
■ FEATURES
Supply Voltage
: VDD=1.8V to 5.5V
Output Current
: IO=200mA (Continuous)
IO=400mA (Peak)
Output ON Resistance : RO(H+L)=1.25Ω typ. at VDD=3.3V
RO(H+L)=1.95Ω typ. at VDD=1.8V
Low Quiescent Current : 60µA typ. at VDD=3.3V
2 Logic Inputs Control (2-IN)
Stand-by Function (At no-input signal)
Built-in Comparator Circuit
Protection Circuit
: Thermal Shutdown Circuit (TSD)
Package Outline
: EQFN16-JE, SSOP16
■ BLOCK DIAGRAM
VDD
■ PACKAGE OUTLINE
NJU7381AMJE
(EQFN16-JE)
NJU7381AV
(SSOP16)
INA1
INA2
INB1
INB2
GND
COMP +
COMP -
Control
Logic
TSD
Stepper
OUTA1 Motor
M
OUTA2
OUTB1
OUTB2
COMP OUT
Ver.2015-04-06
-1-
1 page  
NJU7381A
■ THERMAL RESISTANCE
EQFN16-JE
PARAMETER
Junction - Ambient
Thermal Resistance 1
Junction – Case Surface
Thermal Resistance 1
Junction - Ambient
Thermal Resistance 2
SYMBOL
ja_1
jt_1
ja_2
Junction – Case Surface
Thermal Resistance 2
jt_2
SSOP16
PARAMETER
Junction - Ambient
Thermal Resistance 1
Junction – Case Surface
Thermal Resistance 1
Junction - Ambient
Thermal Resistance 2
Junction – Case Surface
Thermal Resistance 2
SYMBOL
ja_1
jt_1
ja_2
jt_2
TEST CONDITIONS
Mounted on glass epoxy board based on
EIA/JEDEC.
(101.5 114.5 1.6mm, FR-4, 2Layers,
connected exposed PAD)
Mounted on glass epoxy board based on
EIA/JEDEC.
(101.5 114.5 1.6mm, FR-4, 4Layers,
Inner Cu area : 99.5 99.5mm, In addition
thermal via holes, connected exposed PAD)
TEST CONDITIONS
Mounted on glass epoxy board based on
EIA/JEDEC.
(76.2 114.3 1.6mm, FR-4, 2Layers)
Mounted on glass epoxy board based on
EIA/JEDEC.
(76.2 114.3 1.6mm, FR-4, 4Layers,
Inner Cu area : 74.2 74.2mm)
MIN. TYP. MAX. UNIT
- - 173 ºC/W
- 21 - ºC/W
- - 69 ºC/W
- 11 - ºC/W
MIN. TYP. MAX. UNIT
- - 204 ºC/W
- 35 - ºC/W
- - 160 ºC/W
- 26 - ºC/W
■ POWER DISSIPATION vs. AMBIENT TEMPERATURE
2500
NJU7381AMJE PD vs. Ta
(Topr=-40 to +85ºC, Tj=150ºC)
2000
1500
1000
Mounted on 4-Layer Board
(FR4 101.5 114.5 1.6mm,
Inner Cu area: 99.5 99.5mm, In addition
thermal via holes, connected exposed PAD)
936mW
500
Mounted on 2-Layer Board
(FR4 101.5 114.5 1.6mm,
connected exposed PAD)
0
-50 -25 0 25 50
Ambient Temperature Ta(ºC)
75
374mW
100
1000
800
600
NJU7381AV PD vs. Ta
(Topr=-40 to 85ºC, Tj=150ºC)
Mounted on 4-Layer Board
(FR4 76.2 114.3 1.6mm,
Inner Cu area: 74.2 74.2mm)
Mounted on 2-Layer Board
(FR4 76.2 114.3 1.6mm)
400
Device itself
200
0
-50
-25
405mW
317mW
156mW
0 25 50
Ambient Temperature Ta(ºC)
75
100
125
125
Ver.2015-04-06
-5-
5 Page 
NJU7381A
Ver.2015-04-06
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
- 11 -
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet NJU7381A.PDF ] | |
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