STRS5707 [ALLEGRO]

OFF-LINE SWITCHING REGULATORS - WITH BIPOLAR SWITCHING TRANSISTOR; 离线开关稳压器 - 双极开关晶体管


型号：	STRS5707
厂家：	ALLEGRO MICROSYSTEMS
描述：	OFF-LINE SWITCHING REGULATORS - WITH BIPOLAR SWITCHING TRANSISTOR 离线开关稳压器 - 双极开关晶体管晶体稳压器开关晶体管
文件：	总8页 (文件大小：164K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

STR-S5707

STR-S5708 ^AND

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-

resonant flyback converters with indirect feedback. Each device

incorporates the primary control and proportional drive circuit with a

COLLECTOR

COMMON

BASE

third-generation high-voltage bipolar switching transistor.

FAULT

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.

FAULT

LATCH

DRIVE

OSC.

SINK

OVER-CURRENT

PROTECTION

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.

INHIBIT

REF.

32 V SENSE

DRIVE

UVLO

Dwg. PK-004

ABSOLUTE MAXIMUM RATINGS

Supply Voltage, V_IN........................... 15 V

Output Voltage, V_CEX....................... 850 V

V_EBO................................................ 7 V

Proven in substantial volumes, this device and its fixed-frequency

counterparts represents a significant advance in off-line SMPS reliability

growth and integration.

Continuous Output Current,

I_C.......................................... See Table

FEATURES

1 ms Single-Pulse Output Current,

I Quasi-Resonant Operation for Low EMI and High Efficiency

I_CM........................................ See Table

I Low-Power Output Standby Mode

I Indirect Feedback from Auxiliary Winding

Reduces External Component Count

I Pulse-by-Pulse Over-Current Protection

Sink Current, I_S................................. 1.5 A

Drive Current, I_D.......................... -700 mA

Inhibit Voltage, V_INH........................... 15 V

Over-Current Protection Voltage Range,

I Latched Over-Voltage and Thermal Protection

V_OCP............................................ 3.5 V

I Third-Generation Switching Transistor with Proportional Drive

I Maximum ON Time and Off Time Set During Manufacture

I Internal Under-Voltage Lockout with Hysteresis

I Over-Molded SIP with Integral Isolated Heat Spreader

Insulation Voltage,V_WM(RMS)........... 2000 V

Package Power Diss., P_D........ See Graph

Output Junction Temperature, T_J.. +150°C

Internal Frame Temperature, T_F... +125°C

Operating Temperature Range,

T_A............................... -20°C to +125°C

Storage Temperature Range,

Always order by complete part number:

Part

Output Current

Output Power, P_O

Number

Continuous, I_CPeak, I_CM

Wide AC In 220/240 VAC In

STR-S5707

STR-S5708

6 A

7.5 A

12 A

15 A

90 W

120 W

140 W

180 W

T_stg............................. -40°C to +125°C

™

STR-S5707 AND STR-S5708

OFF-LINE

QUASI-RESONANT FLYBACK

SWITCHING REGULATORS

FUNCTIONAL BLOCK DIAGRAM

INHIBIT

UVLO

OVER-VOLT.

PROTECT

FAULT

LATCH

SENSE

PROPORTIONAL

DRIVE

SINK

1 kΩ

REF.

TSD

OSC.

BASE

ton

1500 pF

COLLECTOR

COMMON

0.75 V

1.4 V

-1 V

3300 pF

toff

OVER-CURRENT

PROTECTION

5.1 V

Dwg. FK-001-1

ALLOWABLE PACKAGE POWER DISSIPATION

MAXIMUM SAFE OPERATING AREA

MOUNTING SURFACE

TEMPERATURE

STR-S5708 (15 A)

STR-S5707 (12 A)

54 W

RECOMMENDED MAX.

FRAME TEMP. = +100°C

5.0

3.0

L = 6 mH

B1 = 2.5 A

B2 = 0.8 A

on = 100 µs

dc < 1%

LIMITED BY FRAME

TEMP. = +125°C MAX.

1.0

FREE AIR

0.5

0.3

3.2 W

200

400

600

800

1000

140

100

COLLECTOR-EMITTER VOLTAGE in VOLTS

TEMPERATURE in °C

Dwg. GK-002-1A

Dwg. GK-003-2

™

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

STR-S5707 AND STR-S5708

OFF-LINE

QUASI-RESONANT FLYBACK

SWITCHING REGULATORS

ELECTRICAL CHARACTERISTICS at T_A= +25°C, V_IN= 8.5 V, voltage measurements are refer-

enced to Common (pin 2) (unless otherwise noted).

Limits

Characteristic

Symbol

V_INT

Test Conditions

Min. Typ. Max. Units

On-State Voltage

Turn-on, increasing V_IN

Turn-off, decreasing V_IN

7.6

4.6

9.2

–

8.0

4.9

–

8.4

5.2

10.7

100

400

1.5

Under-Voltage Lockout

Over-Voltage Threshold

Output Leakage Current

Output Saturation Voltage

V_INQ

V_OVP(th)

I_CEX

V_CE= 850 V, V_BE= -1.5 V

–

µA

V_CE(sat)

STR-S5707, I_C= 2 A, I_B= 400 mA

STR-S5708, I_C= 3 A, I_B= 600 mA

STR-S5707, I_C= 2 A, I_B= 400 mA

STR-S5708, I_C= 3 A, I_B= 600 mA

V_CE= 4 V, I_C= 1 A

–

V_BE(sat)

–

DC Current Gain

h_FE

t_on

–

Maximum ON Time

Minimum OFF Time

Over-Current Threshold

Sense Voltage

–

µs

t_off

–

V_OCP(th)

V_SENSE

V_INH(th)

-0.88 -1.0 -1.12

31.7 32.0 32.3

0.65 0.75 0.85

I_SENSE= 3.2 mA

Inhibit Threshold Voltage

Oscillation stops

Oscillation synchronized

Oscillation stops (fault latch set)

V_INreduced from 10.7 V to 4 V

I_IN≤ 100 µA, V_INreduced from 10.7 V

-20°C ≤ T_F≤ +100°C, I_IN= 3.2 mA

Operating

–

3.2

–

1.4

5.1

–

2.0

5.8

500

–

Latch Holding Current

Latch Reset Voltage

Ref. Voltage Temp. Coeff.

Supply Current

I_INH

V_Q

µA

2.5

–

3.1

2.5

–

α_VZ

–

mV/°C

µA

I_IN(ON)

I_IN(OFF)

V_WM(RMS)

–

200

–

Insulation RMS Voltage

All terminals simultaneous reference

metal plate against backside

2000

–

Thermal Shutdown

Thermal Resistance

T_J

125 150

2.0

–

°C

R_θJM

Output junction to mounting surface

–

°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

STR-S5707 AND STR-S5708

OFF-LINE

QUASI-RESONANT FLYBACK

SWITCHING REGULATORS

TYPICAL CHARACTERISTICS

100

= 4 V

STR-S5708

STR-S5707

5.0

3.0

1.0

0.01

0.1

1.0

100

0.03

0.3

3.0

COLLECTOR CURRENT in AMPERES

Dwg. GK-001-2

™

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

STR-S5707 AND STR-S5708

OFF-LINE

QUASI-RESONANT FLYBACK

SWITCHING REGULATORS

TYPICAL QUASI-RESONANT FLYBACK CONVERTER

WARNING: lethal potentials are present. See below.

+ OUTPUT

– OUTPUT

Dwg. EK-005A

APPLICATIONS INFORMATION

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.

Recommended mounting hardware torque:

4.34 – 5.79 lbf•ft (6 – 8 kg•cm or 0.588 – 0.784 Nm).

Recommended metal-oxide-filled, alkyl-degenerated oil base, silicone grease:

Dow Corning 340, or equivalent

www.allegromicro.com

STR-S5707 AND STR-S5708

OFF-LINE

QUASI-RESONANT FLYBACK

SWITCHING REGULATORS

Dimensions in Inches

(for reference only)

0.953 0.008

0.610

REF.

0.130

0.008

0.216

0.008

0.118

0.130

0.004

0.276

0.016

0.216

0.016

0.100

0.004

0.026

0.033

+0.008

–0.004

+0.008

–0.004

0.177

0.028

PACKAGE

CENTER

LEAD

CENTER

Dwg. MK-003-9 in

NOTE: Exact body and lead configuration at vendor’s option within limits shown.

™

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

STR-S5707 AND STR-S5708

OFF-LINE

QUASI-RESONANT FLYBACK

SWITCHING REGULATORS

Dimensions in Millimeters

(controlling dimensions)

24.2 0.2

15.5 0.2

3.0

REF

3.3

5.5

0.2

_0.2ø

3.3

0.1

7.0

0.4

5.5

0.4

2.54

0.1

0.85

+0.2

–0.1

0.65

+0.2

–0.1

4.5

0.7

PACKAGE

CENTER

LEAD

CENTER

Dwg. MK-003-9 mm

NOTE: Exact body and lead configuration at vendor’s option within limits shown.

www.allegromicro.com

STR-S5707 AND STR-S5708

OFF-LINE

QUASI-RESONANT FLYBACK

SWITCHING REGULATORS

SWITCHING REGULATOR PMCMs

Part

Number*

Application

V_I

Max P_O

Power Switch

3002M

5 V switching regulator and a

7.0-33 V

–

500 mA

bipolar

switching

3004M

5 V switching regulator and

Dual 9 V switching regulator

7.0-33 V

–

500 mA

2 x 400 mA

bipolar

S5703

S5707

Quasi-resonant flyback converter

110/120 V

140 W

500 V

850 V

6 A

bipolar

85-265 V

220/240V

90 W

140 W

S5708

Quasi-resonant flyback converter

85-265 V

220/240 V

120 W

180 W

850 V

7.5 A

bipolar

S6703

S6704

S6707

Quasi-resonant flyback converter

110/120V

110/120 V

140 W

100 W

500 V

850 V

6 A

5 A

6 A

bipolar

85-265 V

220/240 V

90 W

140 W

S6708

S6709

Quasi-resonant flyback converter

85-265 V

220/240 V

120 W

180 W

850 V

7.5 A

10 A

bipolar

85-265 V

220/240 V

160 W

220 W

8033S

8050S

8090S

8120S

8150S

3.3 V switching regulator

5.0 V switching regulator

9.0 V switching regulator

12 V switching regulator

15 V switching regulator

5.5-28 V

7.0-40 V

12-40V

–

3 A

bipolar

15-40 V

18-40 V

* Complete part number includes additional characters to indicate operating temperature range and/or package style.

† Also includes linear regulator output for 15.7 V at 1.0 A.

‡ Without heat sink.

The products described here are manufactured in Japan by Sanken Electric Co., Ltd. for sale by

Allegro MicroSystems, Inc.

Sanken Electric Co., Ltd. and Allegro MicroSystems, Inc. reserve the right to make, from time to

time, such departures from the detail specifications as may be required to permit improvements in

the performance, reliability, or manufacturability of their products. Therefore, the user is cautioned

to verify that the information in this publication is current before placing any order.

These products are not authorized for use as critical components in life-support appliances,

devices, or systems without express written approval.

The information included herein is believed to be accurate and reliable. However, Sanken

Electric Co., Ltd. and Allegro MicroSystems, Inc. assume no responsibility for its use; nor for any

infringements of patents or other rights of third parties which may result from its use.

™

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

STRS5707 [ALLEGRO]

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