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PDF NJM2374A Data sheet ( Hoja de datos )
| Número de pieza | NJM2374A | |
| Descripción | PWM DC/DC CONVERTER IC | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de NJM2374A (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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NJM2374A
PWM DC/DC CONVERTER IC
■GENERAL DESCRIPTION
■PACKAGE OUTLINE
The NJM2374A is a PWM DC/DC converter IC.
It features fixed frequency type PWM control for better noise
handling and to avoid intermittent oscillation observed in a
simplified controller.
It is suitable for Step-Up, Step-Down and Inverting applications
for EMI sensitive application.
NJM2374AD
( DIP8 )
■FEATURES
●Operating Voltage
(2.5V* to 40V)
●NJM2374AE Operating Voltage (2.5V* to 48V)
●Wide Oscillator Frequency
(100Hz to 100kHz)
●Internal High Power Transistor
1.5A (max.)
●Internal Over Current Limit Circuit
●PWM form Switching Power Supply Control
●Bipolar Technology
●Package Outline
DIP8, DMP8, SOP8 JEDEC 150mil
SSOP14
*Ta =25°C. At low temperature, the minimum voltage is 3.0V.
■PIN CONFIGURATION
NJM2374AE
( SOP8 )
18
PIN FUNCTION
2
7
1. CS
5. IN+
2. ES
6. V+
3
6
3. CT
7. SI
4. GND
8. CD
45
NJM2374AD
NJM2374AM
NJM2374AE
1 14
2 13
3 12
4 11
5 10
69
78
NJM2374AV
PIN FUNCTION
1. CS
8. IN+
2. NC
3. ES
9. NC
10. V+
4. NC
11. NC
5. CT
12. SI
6. NC
13. NC
7. GND
14. CD
Ver.2011-12-08
NJM2374AM
( DMP8 )
NJM2374AV
( SSOP14 )
-1-
1 page  
NJM2374A
■TYPICAL CHARACTERISTICS
Oscillator Frequency vs. Timing Capacitor
1000
(V+=5V,SI=V+,Pin5=GND,Ta=25°C)
Switch ON/OFF Time vs. Timing Capacitor
1000
(V+=5V,SI=V+,Pin5=GND,Ta=25°C)
100
10
1
100
1000
10000
Timing Capacitor CT (pF)
100
tON
10
1
100
tOFF
1000
10000
Timing Capacitor CT (pF)
Saturation Voltage 1 vs. Collector Current
2 (V+=5V,CS=CD,Ta=25°C)
1.5
1
0.5
0
0 0.5 1 1.5 2
Collector Current IC (A)
Saturation Voltage 2 vs. Collector Current
(V+=5V,Ic(driver)=50mA,β 14,Ta=25°C)
2
1.5
1
0.5
0
0 0.5 1 1.5 2
Collector Current IC (A)
Operating Current vs. Operating Voltage
4 (CT=1nF,SI=V+,IN+>Vth,ES=GND,Ta=25°C)
3
2
1
0
0 5 10 15 20 25 30 35 40
Operating Voltage V+ (V)
Ver.2011-12-08
-5-
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet NJM2374A.PDF ] | |
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