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PDF NJW4190 Data sheet ( Hoja de datos )
| Número de pieza | NJW4190 | |
| Descripción | Doubler Charge Pump IC | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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Doubler Charge Pump IC
NJW4190
GENERAL DESCRIPTION
The NJW4190 is the doubler charge pump IC that operates wide
5V to 17V input range. With only the external part of an input/output
capacitor and a charge pump capacitor, can compose the doubler
voltage circuit. It has a high current capability and a corresponding
to small-sized capacitor compared with conventional product such
as popular 7660/7662.
For usability, it has ON/OFF function, Output Voltage Adjustable
function and external synchronous function.
The NJW4190 is suitable for the bias voltage of CCD, sensors
and operational amplifiers.
There is the NJW4191 for inverter voltage output application.
PACKAGE OUTLINE
NJW4190R
NJW4190M
FEATURES
Doubler Output
34V max.
Wide Operating Voltage Range
5V to 17V
Maximum Output Current
55mA max.
Correspond to Ceramic Capacitor (MLCC)
VOUT Programmable
ON/OFF Function
Built-in Oscillation Circuit
300kHz typ.http://www.DataSheet4U.net/
External Synchronization Function divide-by-4 counter (A ver.)
Thermal Shutdown
Function Compatible to NJU7660/NJU7662 Doubler Circuit*
Package Outline
NJW4190R
: MSOP8 (VSP8)**
NJW4190M
: DMP8
* The NJW4190 is not pin compatible to NJU7660/62.
** MEET JEDEC MO-187-DA
PIN CONFIGURATION
1
2
3
4
NJW4190R
NJW4190M
PIN FUNCTION
8 1. FB
7
2. C+
3. V+
6 4. C-
5. GND
5 6. CLK
7. ON/OFF
8. VOUT
Ver.2013-02-12
-1-
datasheet pdf - http://www.DataSheet4U.net/
1 page  
NJW4190
CHARACTERISTICS
Power Efficiency vs. Output Current
(V+=10V, C1=C2=C3=1µF, Ta=25oC)
100
90
80
70
60
50
40
30
20
10
0
0 10 20 30 40 50 60
Output Current I (mA)
OUT
Output voltage vs. Output Current
(V+=10V, C1=C2=C3=1µF, Ta=25oC)
20
18
16
14
12
10
0 10 20 30 40 50 60
Output Current I (mA)
OUT
Output Resistance vs. Temperature
(V+=10V, C1=C2=C3=1µF, I =20mA)
50 OUT
40
30
20
10
0
-50 -25 0 25 50 75 100 125 150
Ambient Temperature Ta (oC)
Oscillation Frequency vs. Temperature
(V+=10V, C1=C2=C3=1µF)
360
340
320
http://www.DataSheet4U.net/
300
280
260
240
-50 -25 0 25 50 75 100 125 150
Ambient Temperature Ta (oC)
FB Detection Voltage vs. Temperature
1.35
(V+=10V, C1=C2=C3=1µF)
1.3
1.25
1.2
1.15
1.1
-50 -25 0 25 50 75 100 125 150
Ambient Temperature Ta (oC)
Ver.2013-02-12
-5-
datasheet pdf - http://www.DataSheet4U.net/
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet NJW4190.PDF ] | |
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