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STR-W6753のメーカーはAllegro Microsystemsです、この部品の機能は「Universal Input / 58W Off-line Quasi Resonant Flyback Switching Regulator」です。 |
部品番号 | STR-W6753 |
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部品説明 | Universal Input / 58W Off-line Quasi Resonant Flyback Switching Regulator | ||
メーカ | Allegro Microsystems | ||
ロゴ | |||
このページの下部にプレビューとSTR-W6753ダウンロード(pdfファイル)リンクがあります。 Total 8 pages
SwRitecghuinlagtors
STR-W6753
Universal-Input/58 W Off-Line Quasi-
Resonant Flyback Switching Regulator
ABSOLUTE MAXIMUM RATINGS
at TA = +25°C
Control Supply Voltage, VCC . . . . 35 V
Drain-Source Voltage, VDSS . . . . . . 650 V
Drain Switching Current, ID . . . 11.2 A*
Peak Drain Switching Current,
IDM . . . . . . . . . . . . . . . . . . . . . 11.2 A
Single-Pulse Avalanche Energy,
EAS . . . . . . . . . . . . . . . . . . . 145 mJ
OCP/BD Voltage Range,
VOCP . . . . . . . . . . . . –1.5 V to +5 V
FB Input Current, IFB . . . . . . . . 10 mA
FB Voltage Range, VFP –0.5 V to +9 V
Package Power Dissipation, PD
control (VCC × ICC(ON)) . . . . . . 0.8 W
MOSFET (VDSS × ID) . . . See Graph
MOSFET Channel Temp., TJ . +150°C
Internal Frame Temp., TF . . . . +115°C
Operating Temperature Range,
TA . . . . . . . . . . . -20°C to +115°C†
Storage Temperature Range,
TS . . . . . . . . . . . . -40°C to +125°C
* Drain switching current is limited by tem-
perature (page 2) and safe operating area
(page 5).
†For the availability of parts meeting -40°C
requirements, contact Allegro’s Sales Represen-
tative.
The STR-W6753 is a quasi-resonant regulator specifically designed
to satisfy the requirements for increased integration and reliability in
switch-mode power supplies. It incorporates a primary control and drive
circuit with an avalanche-rated power MOSFET. The regulator exhibits
only low-level high-frequency EMI noise because of soft switching of
the MOSFET close to ground (bottom point). A bottom-skip function
minimizes an increase of operational frequency during light loads to
improve system efficiency over the entire load range.
Covering the power range from below 120 watts for a 230 VAC
input, or 58 watts for a universal input (85 to 264 VAC), this device can
be used in a range of applications, from DVD and VCR players to ac
adapters for cellular phones and digital cameras. An auto-standby
function, which is internally triggered by sensing on time, reduces
power consumption at light load. An externally triggered standby mode
reduces the input power further. Multiple protections, including the
avalanche-energy-guaranteed MOSFET, provide high reliability of
system design. Devices with an increased output power rating are the
STR-W6754 and STR-W6756.
Cycle-by-cycle current limiting, undervoltage lockout with hyster-
esis, and overvoltage protection protect the power supply during the
normal overload and fault conditions. Overvoltage protection is latched
after a short delay. The latch may be reset by cycling the input supply.
Low start-up current and a low-power standby mode selected from the
secondary circuit completes a comprehensive suite of features. The
STR-W6753 is provided in a fully molded TO-220-style flange-
mounted, high power, isolated plastic package.
FEATURES AND BENEFITS
■ Rugged 650 V Avalanche-Rated MOSFET
Simplified Surge Absorption
No VDSS Derating Required
■ 1.7 Ω Maximum rDS(on)
■ Two Operational Modes by Automatic Switching:
Quasi-Resonant Mode for Normal Operation
Burst Mode for Standby Operation or Light Loads
■ Automatic or Manually Triggered Burst Standby
Input Power <0.1 W at No Load
■ Low Operating Current (6 mA typ)
— continued
Always order by complete part number, e.g., STR-W6753 .
Sanken Power Devices
from Allegro MicroSystems
1 Page SwRitecghuinlagtors
STR-W6753
Universal-Input/58 W Off-Line Quasi-
Resonant Flyback Switching Regulator
ELECTRICAL CHARACTERISTICS at TA = +25°C, VCC = 20 V, voltage measurements are referenced to S/GND terminal
(unless otherwise specified).
Limits
Characteristic
Symbol Test Conditions
Min. Typ. Max. Units
Start-Up Operation
Operation Start Voltage
Soft-Start Operation Stop Voltage
Soft-Start Oper. Charging Current
Operation Stop Voltage
Circuit Current in Non-Operation
Normal Operation
VCC(ON)
VSS/OLP
ISS/OLP
VCC(OFF)
ICC(OFF)
Turn-on, VCC = 0 19.9 V
Turn-off, VCC = 19.9
VCC = 15 V
8.8 V
16.3 18.2 19.9 V
1.1 1.2 1.4 V
-390 -550 -710 µA
8.8 9.7 10.6 V
– – 100 µA
Drain-Source Breakdown Voltage
Drain Leakage Current
On-State Resistance
Switching Time
Circuit Current
Oscillation Frequency
Bottom-Skip Oper. Threshold Volt.
Quasi-Resonant Oper. Threshold
Feedback-Pin Threshold Voltage
Feedback-Pin Current
Standby Operation
V(BR)DSS
IDSS
rDS(on)
tf
ICC(ON)
fosc
VOCPBD(BS1)
VOCPBD(BS2)
VOCPBD(TH1)
VOCPBD(TH2)
VFB(OFF)
IFB(ON)
ID = 300 µA
VDS = 650 V
ID = 1.4 A, TJ = +25°C
650 –
–V
– – 300 µA
– – 1.7 Ω
– – 400 ns
– – 6.0 mA
19 22 25 kHz
-605 -665 -720 mV
-385 -435 -485 mV
280 400 520 mV
670 800 930 mV
1.32 1.45 1.58 V
600 1000 1400 µA
Standby Operation Start Voltage
Standby Oper. Start Volt. Interval
Standby Non-Operation Current
Feedback-Pin Current
Feedback-Pin Threshold Voltage
Minimum ON Time
VCC(S)
VCC
ICC(S)
IFB(ON)
VFB(S)
ton(min)
VCC = 0 12.2 V
VCC = 10.2 V
VCC = 10.2 V
VCC = 12.2 V
10.3 11.1 12.1 V
1.10 1.35 1.65 V
– 20 56 µA
– 4.0 14 µA
0.55 1.10 1.50 V
0.5 0.8 1.2 µs
continued next page ...
www.allegromicro.com
3
3Pages STR-W6753
Universal-Input/58 W Off-Line Quasi-
Resonant Flyback Switching Regulator
MOSFET TYPICAL CHARACTERISTICS (cont’d)
SwRitecghuinlagtors
WARNING — These devices are designed to be operated at lethal voltages and energy levels. Circuit designs
that embody these components must conform with applicable safety requirements. Precautions must
be taken to prevent accidental contact with power-line potentials. Do not connect grounded test
equipment.
The use of an isolation transformer is recommended during circuit development and breadboarding.
115 Northeast Cutoff, Box 15036
6 Worcester, Massachusetts 01615-0036
6 Page | |||
ページ | 合計 : 8 ページ | ||
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PDF ダウンロード | [ STR-W6753 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
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STR-W6753 | Universal Input / 58W Off-line Quasi Resonant Flyback Switching Regulator | Allegro Microsystems |