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STR-S5708のメーカーはAllegroです、この部品の機能は「Off-Line Switching Regulators with Bipolar Switching Transistor」です。 |
部品番号 | STR-S5708 |
| |
部品説明 | Off-Line Switching Regulators with Bipolar Switching Transistor | ||
メーカ | Allegro | ||
ロゴ | |||
このページの下部にプレビューとSTR-S5708ダウンロード(pdfファイル)リンクがあります。 Total 8 pages
STR-S5707 AND
STR-S5708
OFF-LINE SWITCHING REGULATORS
– WITH BIPOLAR SWITCHING TRANSISTOR
The STR-S5707 and STR-S5708 are specifically designed to meet
the requirement for increased integration and reliability in off-line quasi-
COLLECTOR 1
resonant flyback converters with indirect feedback. Each device
incorporates the primary control and proportional drive circuit with a
COMMON 2
BASE 3
SINK 4
TOVER-CURRENT 5
PROTECTION
UC .INHIBIT 6
Y32 V SENSE 7
D LDRIVE 8
O N 08VIN 9
DRIVE
OSC.
FAULT
S
FAULT
LATCH
R
+
REF.
UVLO
PR E O -S67Dwg.PK-004
D C TRABSOLUTE MAXIMUM RATINGS
SSupply Voltage, VIN ........................... 15 V
E N dOutput Voltage, VCEX ....................... 850 V
U E nVEBO ................................................ 7 V
aContinuous Output Current,
IN R 7IC .......................................... See Table
T E 701 ms Single-Pulse Output Current,
N F 6ICM ........................................ See Table
O E -SSink Current, IS................................. 1.5 A
RDrive Current, ID .......................... -700 mA
C R TInhibit Voltage, VINH ........................... 15 V
SOver-Current Protection Voltage Range,
IS R yVOCP ............................................ ±3.5 V
D O bInsulation Voltage,VWM(RMS) ........... 2000 V
F edPackage Power Diss., PD ........ See Graph
cOutput Junction Temperature, TJ .. +150°C
laInternal Frame Temperature, TF ... +125°C
— epOperating Temperature Range,
RTA ............................... -20°C to +125°C
third-generation high-voltage bipolar switching transistor.
Crucial system parameters such as maximum ON time and OFF
time are fixed during manufacture. Local control circuit decoupling and
layout are optimized within each device.
Cycle-by-cycle current limiting, under-voltage lock-out with hyster-
esis, over-voltage protection, and thermal shutdown protect these
devices during all normal and overload conditions. Over-voltage
protection and thermal shutdown are latched after a short delay. A
primary-side error amplifier with reference is included to facilitate
regulation from an auxiliary or bias winding of the power transformer. A
versatile triple-level inhibit circuit includes the OFF time synchronization
required to establish quasi-resonant operation. The inhibit function has
also been expanded to initiate operation in stand-by mode in which the
power supply delivers a small fraction of the steady-state output power.
The dual requirements of dielectric isolation and low transient thermal
impedance and steady-state thermal resistance are satisfied in an over-
molded single-in-line power package.
Proven in substantial volumes, this device and its fixed-frequency
counterparts represents a significant advance in off-line SMPS reliability
growth and integration.
FEATURES
s Quasi-Resonant Operation for Low EMI and High Efficiency
s Low-Power Output Standby Mode
s Indirect Feedback from Auxiliary Winding
Reduces External Component Count
s Pulse-by-Pulse Over-Current Protection
s Latched Over-Voltage and Thermal Protection
s Third-Generation Switching Transistor with Proportional Drive
s Maximum ON Time and Off Time Set During Manufacture
s Internal Under-Voltage Lockout with Hysteresis
s Over-Molded SIP with Integral Isolated Heat Spreader
Always order by complete part number:
Part Output Current
Number Continuous, IC Peak, ICM
Output Power, PO
Wide AC In 220/240 VAC In
Storage Temperature Range,
Tstg ............................. -40°C to +125°C
STR-S5707
STR-S5708
6A
7.5 A
12 A 90 W
15 A 120 W
140 W
180 W
™
1 Page STR-S5707 AND STR-S5708
OFF-LINE
QUASI-RESONANT FLYBACK
SWITCHING REGULATORS
ELECTRICAL CHARACTERISTICS at TA = +25°C, VIN = 8.5 V, voltage measurements are refer-
enced to Common (pin 2) (unless otherwise noted).
Characteristic
Symbol
Test Conditions
Limits
Min. Typ. Max. Units
On-State Voltage
Under-Voltage Lockout
Over-Voltage Threshold
Output Leakage Current
Output Saturation Voltage
DC Current Gain
Maximum ON Time
Minimum OFF Time
Over-Current Threshold
Sense Voltage
Inhibit Threshold Voltage
VINT
VINQ
VOVP(th)
ICEX
VCE(sat)
VBE(sat)
hFE
ton
toff
VOCP(th)
VSENSE
VINH(th)
Turn-on, increasing VIN
Turn-off, decreasing VIN
VCE = 850 V, VBE = -1.5 V
STR-S5707, IC = 2 A, IB = 400 mA
STR-S5708, IC = 3 A, IB = 600 mA
STR-S5707, IC = 2 A, IB = 400 mA
STR-S5708, IC = 3 A, IB = 600 mA
VCE = 4 V, IC = 1 A
ISENSE = 3.2 mA
Oscillation stops
Oscillation synchronized
7.6 8.0 8.4
4.6 4.9 5.2
9.2 Ð 10.7
Ð Ð 100
Ð Ð 400
Ð Ð 400
Ð Ð 1.5
Ð Ð 1.5
29 Ð 61
33 Ð 41
45 Ð 55
-0.88 -1.0 -1.12
31.7 32.0 32.3
0.65 0.75 0.85
Ð 1.4 2.0
V
V
V
µA
mV
mV
V
V
Ð
µs
µs
V
V
V
V
Oscillation stops (fault latch set)
3.2 5.1 5.8
V
Latch Holding Current
Latch Reset Voltage
Ref. Voltage Temp. Coeff.
Supply Current
Insulation RMS Voltage
IINH
VQ
αVZ
IIN(ON)
IIN(OFF)
VWM(RMS)
VIN reduced from 10.7 V to 4 V
IIN ≤ 100 µA, VIN reduced from 10.7 V
-20°C ≤ TF ≤ +100°C, IIN = 3.2 mA
Operating
All terminals simultaneous reference
metal plate against backside
Ð Ð 500 µA
2.5 3.1 Ð
V
Ð 2.5 Ð mV°/C
15 Ð 28 mA
Ð Ð 200 µA
2000 Ð Ð
V
Thermal Shutdown
Thermal Resistance
TJ
RθJM
Output junction to mounting surface
125 150 Ð
°C
Ð 2.0 Ð °C/W
NOTES: Negative current is defined as coming out of (sourcing) the specified device terminal.
Typical Data is for design information only.
www.allegromicro.com
3Pages STR-S5707 AND STR-S5708
OFF-LINE
QUASI-RESONANT FLYBACK
SWITCHING REGULATORS
Dimensions in Inches
(for reference only)
0.953 ±0.008
0.610
±0.008
0.118
T M REF.
0.130 ¿
±0.008
0.216
±0.008
0.130
±0.004
0.033
+0.008
Ð0.004
1 0.016
PACKAGE
CENTER
0.276
±0.016
9
0.100
±0.004
0.177
±0.028
0.216
0.026
+0.008
Ð0.004
LEAD
CENTER
Dwg. MK-003-9 in
NOTE: Exact body and lead configuration at vendorÕs option within limits shown.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
™
6 Page | |||
ページ | 合計 : 8 ページ | ||
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PDF ダウンロード | [ STR-S5708 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。 |
部品番号 | 部品説明 | メーカ |
STR-S5703 | OFF-LINE SWITCHING REGULATOR WITH BIPOLAR SWITCHING TRANSISTOR | Allegro MicroSystems |
STR-S5707 | OFF-LINE SWITCHING REGULATORS WITH BIPOLAR SWITCHING TRANSISTOR | Allegro |
STR-S5708 | Off-Line Switching Regulators with Bipolar Switching Transistor | Allegro |