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PDF NCP4328 Data sheet ( Hoja de datos )
| Número de pieza | NCP4328 | |
| Descripción | Secondary Side CV/CC Controller | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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NCP4328
Secondary Side CV/CC
Controller
The NCP4328 is a secondary side SMPS controller designed for use
in applications which requires constant current and/or constant current
regulation.
The NCP4328x consists of two OTA amplifiers for voltage and
current loop regulation with precise internal voltage references.
Outputs of OTAs are open drain type (OTAs sink current only).
The NCP4328B includes a LED driver pin implemented with an
open drain MOSFET driven by a 1 kHz square wave with a 12.5%
duty cycle working when VCC is above UVLO for indication purpose.
The NCP4328A is available in TSOP−5 package while the
NCP4328B is available in TSOP−6 package.
Features
• Operating Input Voltage Range: 2.5 V to 36.0 V
• Supply current < 100 mA
• ±0.5% Reference Voltage Accuracy (TJ = 25°C)
• Constant Voltage and Constant Current (A versions) Control Loop
• Indication LED PWM Modulated Driver (NCP4328B)
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Typical Applications
• Offline Adapters for Notebooks, Game Stations and Printers
• LED Lightening
• High Power AC−DC Converters for TVs, Set−Top Boxes, Monitors
etc.
www.onsemi.com
5
1
MARKING
DIAGRAMS
TSOP−5
SN SUFFIX
CASE 483
5
XXXAYWG
G
1
TSOP−6
SN SUFFIX
XXXAYWG
1 CASE 318G
G
1
XXX = Specific Device Code
A = Assembly Location
Y = Year
W = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering, marking and shipping information on
page 8 of this data sheet.
© Semiconductor Components Industries, LLC, 2015
July, 2015 − Rev. 2
1
Publication Order Number:
NCP4328/D
1 page  
NCP4328
TYPICAL CHARACTERISTICS
1.29
1.28
1.27
1.26
1.25
1.24
1.23
1.22
−40 −20 0 20 40 60 80 100 120
TJ (°C)
Figure 2. VREF at VCC = 15 V
65
64.5
64
63.5
63
62.5
62
61.5
61
60.5
60
−40
−20 0 20 40 60 80 100
TJ (°C)
Figure 4. VREFC at VCC = 15 V
120
1.29
1.28
1.27
1.26
1.25
1.24
1.23
1.22
0
65
64.5
64
63.5
63
62.5
62
61.5
61
60.5
60
0
6 12 18 24
VCC (V)
Figure 3. VREF at TJ = 255C
30
36
6 12 18 24 30
VCC (V)
Figure 5. VREFC at TJ = 255C
36
3.8
3.6
3.4
3.2
3.0
2.8
2.6
2.4
−40 −20
VCCUVLO_R
VCCUVLO_F
0 20 40 60 80
TJ (°C)
Figure 6. VCCUVLO
100 120
www.onsemi.com
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet NCP4328.PDF ] | |
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