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PDF NJW4162A Data sheet ( Hoja de datos )
| Número de pieza | NJW4162A | |
| Descripción | 2channel MOSFET Drive Switching Regulator IC | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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NJW4162A
2channel MOSFET Drive Switching Regulator IC for Buck Converter
GENERAL DESCRIPTION
The NJW4162A is a 2 channel MOSFET Drive switching
regulator IC for buck converter that operates wide input voltage
range from 4.3V to 40V. The oscillating frequency range can set
within 100kHz to 1MHz by external resistor. It also has an external
synchronous function.
It has individual Standby functions, Soft Start functions and
Power Good functions for each channel, therefore a start-up
control and/or operating condition monitoring are available with a
microcomputer.
The NJW4162A is suitable for a logic voltage generating circuit
from high input voltage such as Automotive. Office Automation
and Industrial applications.
■ PACKAGE OUTLINE
NJW4162AVC3
FEATURES
Pch MOSFET Driving
Driving Voltage V+-10V(typ.)
Maximum Rating Input Voltage 45V
Wide Operating Voltage Range 4.3V to 40V
PWM Control
Maximum Duty Cycle 100%
Wide Oscillating Frequency Range 100kHz to 1MHz
External Synchronization Function 1,500kHz (max.)
Anti-Phase switching
Adjustable Soft Start Function
UVLO (Under Voltage Lockout)
Over Current Protection (Hiccup type)
Thermal Shutdown Protection
Standby Function
Power Good Function
Package Outline
NJW4162AVC3 : SSOP20-C3
Ver.2015-08-31
-1-
1 page  
NJW4162A
ABSOLUTE MAXIMUM RATINGS
(Ta=25°C)
PARAMETER
SYMBOL
MAXIMUM RATINGS
UNIT
Supply Voltage
V+ -0.3 to +45
V
OUT1,2 pin Voltage
VOUT1,2
V+-11 to V+ (*1)
V
EN1,2 pin Voltage
VEN1,2
-0.3 to +45
V
IN-1,2 pin Voltage
VIN-1,2
-0.3 to +6
V
Power Good1,2 pin Voltage
SYNC pin Voltage
OUT pin Peak Current
Power Dissipation
VPG1,2
VSYNC
IO_PEAK+
IO_PEAK-
PD
-0.3 to +6
-0.3 to +6
1,000 (Source)
1,000 (Sink)
SSOP20
1,000 (*2)
1,500 (*3)
V
V
mA
mA
mW
Junction Temperature Range
Tj
-40 to +150
C
Operating Temperature Range
Topr
-40 to +125
C
Storage Temperature Range
Tstg
-50 to +150
C
(*1): When Supply voltage is less than +11V, the absolute maximum rating is -0.3 to V+.
(*2): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 2Layers)
(*3): 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
Supply Voltage
Timing Resistor
Oscillating Frequency
Power Good pin Voltage
External Clock Input Range
HSREG Capacitor
SYMBOL
V+
RT
fOSC
VPG
fSYNC
CHSREG
MIN.
4.3
4.3
100
0
fOSC 1.1
0.01
TYP.
–
–
–
–
–
0.22
MAX.
40
56
1,000
5.5
1,500 (*4)
1
UNIT
V
k
kHz
V
kHz
F
(*4): Use the external synchronization frequency in the range below x2 of internal oscillating frequency
(Maximum: 1.5 MHz).
Ver.2015-08-31
-5-
5 Page 
TYPICAL CHARACTERISTICS
Under Voltage Lockout Voltage vs. Temperature
4.3
4.2
VT_ON
4.1
VT_OFF
4
3.9
3.8
-50 -25
0 25 50 75 100 125 150
Temperature : (ºC)
Enable Control ON/OFF Voltage vs.Temperature
(V+=12V)
2
1.8
1.6 VON
1.4
1.2
1
0.8
0.6 VOFF
0.4
0.2
0
-50 -25
0 25 50 75 100 125 150
Temperature : (ºC)
Standby Current vs. Temperature
12 (VEN1,2=0V)
10
V+=40V
8
6
4
2
0
-50 -25
V+=12V
V+=4.3V
0 25 50 75 100 125 150
Temperature : (ºC)
Ver.2015-08-31
NJW4162A
Charge Current vs. Temperature
(V+=12V)
10
9.5
9
8.5
8
7.5
7
6.5
6
-50 -25
0 25 50 75 100 125 150
Temperature : (ºC)
Quiescent Current vs. Temperature
6 (RL=no load, RT=10k , VIN-=0.75V, VFB=0.7V)
5
V+=40V
4
3 V+=12V
V+=4.3V
2
1
0
-50 -25
0 25 50 75 100 125 150
Temperature : (ºC)
- 11 -
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet NJW4162A.PDF ] | |
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