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NJW4161 PDF даташит

Спецификация NJW4161 изготовлена ​​​​«New Japan Radio» и имеет функцию, называемую «MOSFET Drive Switching Regulator IC».

Детали детали

Номер произв NJW4161
Описание MOSFET Drive Switching Regulator IC
Производители New Japan Radio
логотип New Japan Radio логотип 

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NJW4161 Даташит, Описание, Даташиты
NJW4161
MOSFET Drive Switching Regulator IC for Buck Converter
GENERAL DESCRIPTION
The NJW4161 is a MOSFET Drive switching regulator IC for
Buck Converter that operates wide input range from 3.1V to 40V.
It can provide large current application because of built-in highly
effective Pch MOSFET 10V drive circuit.
There are two types, Hiccup type and Latch type, of over
current protection version.
It is suitable for logic voltage generation from high voltage that
Car Accessory, Office Automation Equipment, Industrial
Instrument and so on.
PACKAGE OUTLINE
NJW4161R
(MSOP8(VSP8))
NJW4161D
(DIP8)
FEATURES
Pch MOSFET Driving
Driving Voltage V+-10V(typ.)
Wide Operating Voltage Range 3.1V to 40V
PWM Control
Automatic PWM/PFM Control improves power efficiency at light load. (C ver.)
Wide Oscillating Frequency
50kHz to 1MHz
Soft Start Function
15ms (typ.)
Over Current Protection
Hiccup type (A, C ver.)
Latch type (B ver.)
Thermal Shutdown Protection
UVLO (Under Voltage Lockout)
Standby Function
Package Outline
NJW4161R: MSOP8(VSP8) *MEETJEDEC MO-187-DA
NJW4161D: DIP8
PRODUCT CLASSFICATION
Part Number
Version
NJW4161R-A
NJW4161D-A
NJW4161R-B
NJW4161R-C
A
A
B
C
Controller
PWM control
PWM control
PWM control
PWM/PFM
control
Over Current
Protection
Hiccup type
Hiccup type
Latch type
Hiccup type
Package
MSOP8
(VSP8)
DIP8
MSOP8
(VSP8)
MSOP8
(VSP8)
Operating
Temperature
Range
General Spec.
-40 C to +125 C
General Spec.
-40 C to +125 C
General Spec.
-40 C to +125 C
General Spec.
-40 C to +125 C
Ver.2015-05-11
-1-









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NJW4161 Даташит, Описание, Даташиты
NJW4161
PIN CONFIGURATION
PIN FUNCTION
1 8 1. REGH
2
7
2. SI
3. OUT
3
6
4. V+
5. IN-
4 5 6. FB
7. RT
NJW4161R-A
8. GND
NJW4161R-B
NJW4161R-C
NJW4161D-A
BLOCK DIAGRAM
V+ SI
Enable
Control
VREG
UVLO
Soft Start
VREF
Error AMP
0.8V
OSC
VIPK Pulse by
Pulse
PWM
Comparator
10V
Regulator
500k
Driver
PWM/PFM
Control
*C version only
IN- RT FB
RT State
ON: Connect timing resistor to GND
OFF (Stand-by): RT terminal open
TSD
GND
OUT
REGH
-2-
Ver.2015-05-11









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NJW4161 Даташит, Описание, Даташиты
NJW4161
ABSOLUTE MAXIMUM RATINGS
(Ta=25°C)
PARAMETER
Supply Voltage
OUT pin Voltage
SI pin Voltage
REGH pin Voltage
IN- pin Voltage
RT pin Voltage
OUT pin Peak Current
Power Dissipation
SYMBOL
V+
VOUT
VSI
VREGH
VIN-
VRT
IO_PEAK+
IO_PEAK-
PD
MAXIMUM RATINGS
-0.3 to +45
V+-11 to V+ (*1)
V+-5 to V+ (*2)
V+-11 to V+ (*1)
-0.3 to +6
-0.3 to +6 (*3)
1,700 (Source)
1,100 (Sink)
MSOP8
(VSP8)
595 (*4)
805 (*5)
UNIT
V
V
V
V
V
V
mA
mW
DIP8
700 (Device itself)
Operating Temperature Range
Topr
-40 to +125
Storage Temperature Range
Tstg
-50 to +150
(*1): When Supply voltage is less than +11V, the absolute maximum rating is -0.3 to V+.
C
C
(*2): When Supply voltage is less than +5V, the absolute maximum rating is -0.3 to V+.
(*3): When Supply voltage is less than +6V, the absolute maximum voltage is equal to the Supply voltage.
(*4): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 2Layers)
(*5): 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
REGH Capacitor
SYMBOL
V+
RT
fOSC
CREGH
MIN.
3.1
1.5
50
0.01
TYP.
MAX.
UNIT
– 40 V
– 43 k
1,000
kHz
0.1 1
F
Ver.2015-05-11
-3-










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