DataSheet26.com

даташит STR-A6252M PDF ( Datasheet )

STR-A6252M Datasheet Download - Sanken Electric

Номер произв STR-A6252M
Описание Universal-Input 20 W 67 kHz Flyback Switching Regulators
Производители Sanken Electric
логотип Sanken Electric логотип 



1Page
		

No Preview Available !

STR-A6252M Даташит, Описание, Даташиты
Sanken Power Devices
from Allegro MicroSystems
www.datasheet4u.com
STR-A6252M
Universal-Input 20 W 67 kHz
Flyback Switching Regulators
Approximate Scale 1:1
Package DIP-8
FEATURES AND BENEFITS
67 kHz PWM with ±5% frequency jittering for EMI noise
filtering and cost reduction
Rugged 650 V avalanche-rated MOSFET:
• Simplified surge absorption
• No VDSS derating required
Low RDS(on) : 2.8 Ω maximum
Auto-burst mode for stand-by operation or light loads; less
transformer audible noise
Built-in leading edge blanking
Soft start and low start-up current; start-up circuit disabled in
operation
Auto-burst stand-by (intermittent operation) input power
<0.1 W at no load
Built-in constant-voltage/constant current (CV/CC)
Multiple protections:
• Pulse-by-pulse overcurrent protection (OCP)
• Overload protection (OLP) with auto restart
• Latching overvoltage protection (OVP)
• Undervoltage lockout (UVLO) with hysteresis
• Latching thermal shutdown (TSD)
The STR-A6252M is a 67 kHz PWM topology (with ±5%
frequency jittering for minimum EMI) regulator specifically
designed to satisfy the requirements for increased integration and
reliability in flyback converters. It incorporates a primary control
and drive circuit with an avalanche-rated power MOSFET. This
is a higher-frequency version of the STR-A6252.
Covering the power range from below 24 watts for a
230 VAC input, or to 20 watts for a universal (85 to 264 VAC)
input, this device can be used in a wide range of applications,
from DVD players and VCR player/recorders to ac adapters
for cellular phones and digital cameras. An auto-burst standby
function reduces power consumption at light load, while multiple
protections, including the avalanche-energy guaranteed MOSFET,
provide high reliability of system design.
Cycle-by-cycle current limiting, undervoltage lockout with
hysteresis, overvoltage protection, and thermal shutdown protect
the power supply during the normal overload and fault conditions.
Overvoltage protection and thermal shutdown are 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.
It is provided in an 8-pin mini-DIP plastic package with pin
6 removed. The leadframe plating is pure Sb, and the package
complies with RoHS.
All performance characteristics given are typical values for circuit or
system baseline design only and are at the nominal operating voltage and Always order by complete part number, e.g.: STR-A6252M
an ambient temperature of +25°C, unless otherwise stated.
Datasheet 28103.44-5a







No Preview Available !

STR-A6252M Даташит, Описание, Даташиты
STR-A6252M
Universal-Input 20 W 67 kHz
Flyback Switching Regulators
www.datasheet4u.com
FUNCTIONAL BLOCK DIAGRAM AND TERMINAL ASSIGNMENTS
Vcc 5
OVP
32V
TSD
125°C
RESET
7.2V
Delay
10 µs
R
SQ
Internal
BIAS
UVLO
13.4V/10V
FM/SS 2
PWM OSC
RQ
S
CV/CC
OCP
Feedback
Control
Soft Start
OLP
Frequency
Modulation
Istartup
=1.1mA
Drive
LEB
8D
7D
1 S/OCP
FB/CC
4 /OLP
3 GND
Number
1
2
3
Name
S/OCP
FM/SS
GND
Description
Source/OCP terminal
FM/Soft start terminal
Ground terminal
4 FB /CC/OLP FB/CC/OLP terminal
5
VCC
Power supply terminal
7
D Drain terminals
8
Functions
MOSFET Source/Overcurrent
protection
Capacitor connection terminal for
frequency jitter and soft start.
Ground
Input of constant voltage control
signal / constant current operation
control signal / over load protection
signal
Input of power supply for control
circuit
MOSFET drain / Input of startup
current
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036
2







No Preview Available !

STR-A6252M Даташит, Описание, Даташиты
STR-A6252M
Universal-Input 20 W 67 kHz
Flyback Switching Regulators
www.datasheet4u.com
ABSOLUTE MAXIMUM RATINGS at TA = 25°C
Characteristic
Drain Current1
Maximum Switching Current
Symbol
IDpeak
IDMAX
Single Pulse Avalanche Energy2
S/OCP Terminal Voltage
Controller (MIC) Input Voltage
FB/CC/OLP Terminal Voltage
FM Terminal Voltage
MOSFET Power Dissipation3,4
Controller (MIC) Power Dissipation5
Operating Internal Frame Temperature6
Operating Ambient Temperature
Storage Temperature
Channel Junction Temperature
1Refer to figure 1
2Refer to figure 3
3Refer to figure 5
4Mounted on 15 x 15 mm printed circuit board
5Refer to figure 6
6Measured at the root of terminal 3
EAS
VOCP
Vcc
VFB
VFM
PD1
PD2
TF
Top
Tstg
TJ
Terminal
8-1
8-1
8-1
1-3
5-3
4-3
2-3
8-1
5-3
Note
Single Pulse
VS/OCP = 0.81 V with reference to GND,
TA = –20 to 125°C
Single Pulse
VDD = 99 V, L = 20 mH, IL = 3.0 A
For Vcc×Icc
Refer to TOP
Max.
3.0
3.0
123
123
–0.3 to 6
36
–0.3 to 12
–0.3 to 6
1.35
0.15
–20 to 125
–20 to 125
–40 to 125
150
Unit
A
A
mJ
mJ
V
V
V
V
W
W
°C
°C
°C
°C
Figure 1 – MOSFET Safe Operating Area
Derating Curve
100
80
60
40
20
0
0 25 50 75 100 125 150
Temperature, TF (°C)
Figure 2 – MOSFET Safe Operating Area
Drain Current versus Voltage
10.00
1.00
Cudrureentot liRmDitS(on)
0.10
0.01
1
Refer to figure 1 for MOSFET SOA
temperature derating coefficient
10 100
Drain-to-Source Voltage, VDS (V)
1000
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036
3










Всего страниц 13 Pages
Скачать PDF[ STR-A6252M.PDF Даташит ]

Ссылка Поделиться


Related Datasheets

Номер в каталогеОписаниеПроизводители
STR-A6252(STR-A6251/-A6252) Universal-Input/15 W 50 kHz Flyback Switching RegulatorsAllegro MicroSystems
Allegro MicroSystems
STR-A6252MUniversal-Input 20 W 67 kHz Flyback Switching RegulatorsSanken Electric
Sanken Electric

Номер в каталоге Описание Производители
6MBP200RA-060

Intelligent Power Module

Fuji Electric
Fuji Electric
ADF41020

18 GHz Microwave PLL Synthesizer

Analog Devices
Analog Devices
AN-SY6280

Low Loss Power Distribution Switch

Silergy
Silergy

DataSheet26.com    |    2020    |   Контакты    |    Поиск