NCP43080 PDF даташит
Спецификация NCP43080 изготовлена «ON Semiconductor» и имеет функцию, называемую «Synchronous Rectifier Controller». |
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Детали детали
Номер произв | NCP43080 |
Описание | Synchronous Rectifier Controller |
Производители | ON Semiconductor |
логотип |
30 Pages
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NCP43080
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Synchronous Rectifier
Controller
The NCP43080 is a synchronous rectifier controller for switch
mode power supplies. The controller enables high efficiency designs
for flyback and quasi resonant flyback topologies.
Externally adjustable minimum off−time and on−time blanking
periods provides flexibility to drive various MOSFET package types
and PCB layout. A reliable and noise less operation of the SR system is
insured due to the Self Synchronization feature. The NCP43080 also
utilizes Kelvin connection of the driver to the MOSFET to achieve high
efficiency operation at full load and utilizes a light load detection
architecture to achieve high efficiency at light load.
The precise turn−off threshold, extremely low turn−off delay time
and high sink current capability of the driver allow the maximum
synchronous rectification MOSFET conduction time. The high
accuracy driver and 5 V gate clamp make it ideally suited for directly
driving GaN devices.
Features
• Self−Contained Control of Synchronous Rectifier in CCM, DCM and
QR for Flyback, Forward or LLC Applications
• Precise True Secondary Zero Current Detection
• Rugged Current Sense Pin (up to 150 V)
• Adjustable Minimum ON−Time
• Adjustable Minimum OFF-Time with Ringing Detection
• Adjustable Maximum ON−Time for CCM Controlling of Primary
QR Controller
• Improved Robust Self Synchronization Capability
• 8 A / 4 A Peak Current Sink / Source Drive Capability
• Operating Voltage Range up to VCC = 35 V
• Automatic Light−load & Disable Mode
• Adaptive Gate Drive Clamp
• GaN Transistor Driving Capability (options A and C)
• Low Startup and Disable Current Consumption
• Maximum Operation Frequency up to 1 MHz
• SOIC-8 and DFN−8 (4x4) and WDFN8 (2x2) Packages
• These are Pb−Free Devices
Typical Applications
• Notebook Adapters
• High Power Density AC/DC Power Supplies (Cell Phone Chargers)
• LCD TVs
• All SMPS with High Efficiency Requirements
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
www.onsemi.com
8
1
SOIC−8
D SUFFIX
CASE 751
MARKING
DIAGRAMS
8
43080x
ALYW G
G
1
1
DFN8
MN SUFFIX
CASE 488AF
43080x
ALYWG
G
WDFN8
MT SUFFIX
CASE 511AT
1
FxMG
G
43080x = Specific Device Code
x = A, B, C, D or Q
Fx = Specific Device Code
x = A, 2, C, D or Q
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
M = Date Code
G = Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information on page 33 of
this data sheet.
© Semiconductor Components Industries, LLC, 2015
November, 2015 − Rev. P0
1
Publication Order Number:
NCP43080/D
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NCP43080
OK1
RTN
D1
Figure 1. Typical Application Example − LLC Converter with Optional LLD
Vbulk
C1
VCC
FLYBACK
CONTROL
CIRCUITRY
DRV
FB CS
R1 TR1 C6 R7
C2
D3 R6
R5
D4
C3
M2
D6
M1
C7
R2
OK1
R3 R4
R8
+Vout
C5
GND
C4
D5
Figure 2. Typical Application Example − DCM, CCM or QR Flyback Converter with optional LLD
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2
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NCP43080
Vbulk
ZCD
C1 R1
R3
PRIMARY
SIDE
VCC
D4
C3
C2
D3
TR1
C8
R11
R10
R9
M2
D6
C9
FLYBACK
R4
C4
CONTROLLER DRV
M1
C7
COMP CS
R7
R5
C5
C6
R2 R6
R8
+Vout
C10
GND
Figure 3. Typical Application Example − Primary Side Flyback Converter with optional LLD
Vbulk
R18
R17
D8
VCC
QR
CONTROL
CIRCUITRY
DRV
ZCD FB CS
C1 R5
D3
D4
C4
D1
M1
R1
TR1
C2
C8 R13
R14
R12
M3
D7
C9
C5
R19 C3
M2
R11
D6
R6
OK1
R9
R10
R7
NCP43080Q
D5
TR2
C6
+Vout
C7
GND
R15
R16
Figure 4. Typical Application Example − QR Converter − Capability to Force Primary into CCM Under Heavy
Loads utilizing MAX−TON
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