FAN7527BMX原理图各脚功能电路原理芯片引脚定义引脚图及功能-中国IC网-芯三七

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产品型号FAN7527BMX的概述

芯片FAN7527BMX的概述 FAN7527BMX是一款用于电源管理和控制的集成电路（IC），由Fairchild Semiconductor（现为英飞凌科技的一部分）制造。该芯片主要用于开关电源（SMPS）应用，具有多种保护功能和良好的性能指标，广泛应用于适配器、电源转换器和工业电源等领域。FAN7527BMX的设计理念是提高系统的能效，同时降低设计的复杂性，适合各种电源管理需求。 FAN7527BMX的主要特性包括高效的电源转换能力、低待机功耗及多样化的保护机制。这些特点使其成为设计高性能电源解决方案的重要选择。该芯片可在多种工作条件下运行，能够为设计人员提供灵活性，满足不同行业、不同应用的需求。芯片FAN7527BMX的详细参数 FAN7527BMX的主要参数如下： - 输入电压范围：8V至32V - 输出电压：可根据设计调节 - 工作频率：受外部元件影响，通常在100kHz...

产品型号FAN7527BMX的Datasheet PDF文件预览

www.fairchildsemi.com

FAN7527B

Power Factor Correction Controller

Features

Description

• Internal start-up timer

• Internal R/C filter eliminates the need for an external

R/C filter

• Very precise adjustable output over voltage protection

• Zero current detector

• One quadrant multiplier

• Trimmed 1.5% internal band gap reference

• Under voltage lockout with 3V of hysteresis

• Totem pole output with high state clamp

• Low start-up and operating current

• 8-Pin DIP or 8-Pin SOP

The FAN7527B provides simple and high performance

active power factor correction. The FAN7527B is optimized

for electronic ballasts and low power and high density power

supplies which require minimum board size, reduced

external components and low power dissipation. Because the

R/C filter is included in the current sense block, the external

R/C filter is not necessary. Special circuitry has also been

added to prevent no load runaway conditions. Regardless of

the supply voltage, the output drive clamping circuit limits

the overshoot of the power MOSFET gate drive. It greatly

enhances the system reliability.

Applications

8-DIP

• Electronic ballast

• SMPS

8-SOP

Rev 1.0.2

FAN7527B

Internal Block Diagram

Vcc

2.5V Ref

Vcc

−

Internal

Bias

UVLO

8.5V

11.5V

OUT

Drive

Output

Timer R

Idet

−

7.2V

2V 1.5V

Zero Current

Detector

Static OVP

40k

−

8pF

2.25V

Current Sense

Comparator

Vref

Veao(L)=2.25V

1.8V

Vmo

0.25V

Vref

−

Vm1

0 ~ 3.8V

MULT

Vm2

INV

Vref~Vref+2.5V

Vea(-)

Multiplier

OVP

Current

Detector

Isovp=30uA

Idovp=40uA

Error Amp

Vmo

K =

Vm1 (Vm2− Vref)

EA_OUT

GND

FAN7527B

PIN Description

INV

Vcc

OUT

EA_OUT

MULT

GND

ldet

(Top View)

Pin Number

Pin Name

Pin Function Description

Inverting input of the error amplifier. the output of the boost converter

should be resistively divided to 2.5V and connected to this pin.

INV

The output of the error amplifier. a feedback compensation network is

placed between this pin and the INV pin.

EA_OUT

MULT

Input to the multiplier stage. the full-wave rectified ac voltage is

divided to less than 2V and is connected to this pin.

Input of the PWM comparator. the MOSFET current is sensed by a

resistor and the resulting voltage is applied to this pin. an internal R/C

filter is included to reject any high frequency noise.

ldet

Zero current detection input.

GND

The ground potential of all the pins.

Gate driver output. the push pull output stage is able to drive the

power MOSFET with peak current of 500mA.

OUT

Vcc

Supply voltage of driver and control circuits.

FAN7527B

Absolute Maximum Ratings (Ta=25°C)

Characteristics

Symbol

Value

Unit

Supply voltage

Peak drive output current

±500

OH OL

Driver output clamping diodes Vo > Vcc or Vo < -0.3V

Detector clamping diodes

lclamp

ldet

Vin

±10

Error amp, multiplier and comparator input voltages

Operating junction temperature

Operating temperature range

Storage temperature range

-0.3 to 6

150

°C

Topr

Tstg

-25 to 125

-65 to 150

1.1

°C

8-DIP

8-SOP

Power dissipation

0.8

Thermal Data

Characteristics

Symbol

Rθja

Value

Unit

8-DIP

8-SOP

110

150

Thermal resistance junction-ambient Max.

°C/W

Temperature Characteristics (-25°C ≤ Ta ≤ 125°C)

Characteristics

Symbol

∆Vref

Min.

Typ.

Max.

Unit

Temperature stability for reference voltage (V

Temperature stability for multiplier gain (K)

)

ref

∆K/∆T

-0.2

%/°C

FAN7527B

Electrical Characteristics

= 14V, -25°C ≤ Ta ≤ 125°C, unless otherwise stated.

Characteristics

Symbol

Test Condition

Min. Typ.

Max.

Unit

< UNDER VOLTAGE LOCKOUT SECTION>

Start threshold voltage

Vcc Increasing

10.5 11.5

12.5

th(st)

UVLO hysteresis

HY(st)

< SUPPLY CURRENT SECTION >

Start-up supply current

Vcc = Vth(st) -0.2V

Output not switching

Vinv = 3V

100

Operating supply current

Operating current at OVP

Dynamic operating supply current

< ERROR AMPLIFIER SECTION >

cc(ovp)

1.7

50kHz, CI = 1nF

dcc

Iref = 0mA, Ta = 25°C

-25 ≤ Ta ≤ 125°C

14V ≤ Vcc ≤ 25V

-25 ≤ Ta ≤ 125°C

2.465 2.5

2.535

Voltage feedback input threshold

ref

2.44

2.5

0.1

2.56

Line regulation

∆V

ref

Temperature stability of Vref (Note1)

Input bias current

ref

-0.5

-2

0.5

(ea)

Output source current

Vm2 = 4V

-4

source

Isink

Output sink current

Vm2 = 4V

Output upper clamp voltage (Note2)

Output lower clamp voltage (Note3)

Large signal open loop gain (Note4)

Power supply rejection ratio (Note5)

Unity gain bandwidth (Note6)

Slew rate (Note7)

Veao(H) Isource = 0.1mA

Veao(L)

Isink = 0.1mA

2.25

MHz

V/us

PSRR

GBW

14V ≤ Vcc ≤ 25V

0.6

< MULTIPLIER SECTION>

Input bias current (pin3)

-0.5

0.5

3.8

(m)

M1 input voltage range (pin3)

M2 input voltage range (pin2)

Multiplier gain (Note8)

∆V 1

∆V 2

Vref

Vref+2.5

0.52

1.95

Vm1 = 1V, Vm2 = 3.5V

0.36 0.44

1/V

Maximum multiplier output voltage

Temperature stability of K (Note9)

Vomax(m) Vinv =0V, Vm1 = 4V

∆K/∆T -25 ≤ Ta ≤ 125°C

1.65

1.8

-0.2

%/°C

FAN7527B

Electrical Characteristics (Continued)

= 14V, -25°C ≤ Ta ≤ 125°C, unless otherwise stated.

Characteristics

Symbol

Test Condition

Min. Typ. Max. Unit

< CURRENT SENSE SECTION>

Input offset voltage (Note8)

Input bias current

Vm1=0V , Vm2 = 2.2V

-10

-1

io(cs)

0V ≤ Vcs ≤ 1.7V

-0.1

200

(cs)

Current sense delay to output (Note11)

< ZERO CURRENT DETECT SECTION >

Input voltage threshold

500

Vth

Vdet increasing

1.7

0.2

2.3

0.8

(det)

Detect hysteresis

0.5

(det)

Input low clamp voltage

Vclamp(I) Idet = -100uA

Vclamp(h) Idet = 3mA

0.45 0.75

Input high clamp voltage

Input bias current

6.5

-1

7.2

-0.1

7.9

Ib(det)

1V ≤ Vdet ≤ 5V

Input high/low clamp diode current (Note12) Iclamp(d)

±3

< OUTPUT SECTION >

Output voltage high

Io = -10mA

Io = 10mA

CI = 1nF

10.5

0.8

130

Output voltage low

Rising time (Note13)

200

120

Falling time (Note14)

CI = 1nF

Maximum output voltage

Output voltage with UVLO activated

< RESTART TIMER SECTION>

Restart time delay

Vomax(o) Vcc = 20V, Io = 100uA

Vomin(o) Vcc = 5V , Io = 100uA

Vm1 = 1V, Vm2 = 3.5V

150

(rst)

Soft OVP detecting current

Dynamic OVP detecting current

Static OVP threshold voltage

sovp

dovp

Vovp

Vinv = 2.7V

2.1 2.25

2.4

Note 1 ~ 14: These parameters, although guaranteed, are not 100% tested in production.

Pin4_Threshold

Vm1 × (Vm2 – Vref)

------------------------------------------------------

Multiplier Gain: K =

......(Vm1 = Vpin3,Vm2 = Vpin2)

FAN7527B

Typical Performance Characteristics

Fig.1 E.A. Output Voltage vs. C.S. Threshold

2.0

Fig.2 Multiplier Input Voltage vs. C.S. Threshold

2.0

Vm1=3.0V Vm1=2.5V Vm1=2.0V

Veao=4.25V Veao=4.0V Veao=3.75V

1.8

Vm1=3.5V

1.6

Veao=4.5V

Veao=3.5V

Vm1=1.5V

Veao=3.25V

Veao=3.0V

1.5

Vm1=4.0V

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0.0

Vm1=1.0V

1.0

Veao=2.75V

Vm1=0.5V

0.5

Veao=2.5V

Vm1=0V

5.0

0.0

2.0

2.5

3.0

3.5

4.0

4.5

EA Output Voltage(V)

Multiplier Input Voltage(V)

Figure 2. Multiplier Input Voltage

vs Current Sensing Threshold

Figure 1. Error Amplifier Output Voltage

vs Current Sensing Threshold

Fig.4 Reference Voltage vs. Temperature

2.7

Fig.3 Supply Current vs. Supply Voltage

0.015

0.012

0.009

0.006

0.003

0.000

2.6

2.5

2.4

2.3

-25

100

125

Supply Voltage(V)

Temperature (℃)

Figure 4. Reference Voltage vs Temperature

Figure 3. Supply Current vs Supply Voltage

Fig.6 UV Lockout Hysteresis vs. Temperature

Fig.5 Start-up Threshold vs. Temperature

-25

100

125

-25

100

125

Temperature (℃)

Figure 6. UV Lockout Hysteresis vs Temperature

Figure 5. Start-Up Threshold vs Temperature

FAN7527B

Typical Performance Characteristics (Continued)

Fig.7 Start-up Supply Current vs. Temperature

Fig.8 E.A. Source CurrenT vs. Temperature

100

-1

-2

-3

-4

-5

-25

100

125

-25

100

125

Temperature (℃)

Figure 8. Error Amplifier Source Current

vs Temperature

Figure 7. Start-Up Supply Current vs Temperature

Fig.9 E.A. Sink Current vs. Temperature

Fig.10 E.A. Input Bias Current vs. Temperature

0.5

0.4

0.3

0.2

0.1

0.0

-0.1

-0.2

-0.3

-0.4

-0.5

-25

100

-25

100

125

Temperature (℃)

Figure 10. Error Amplifier Input Bias Current

vs Temperature

Figure 9. Error Amplifier Sink Current

vs Temperature

Fig.12 Idet Threshold Voltage vs. Temperature

4.0

Fig.11 Multiplier Gain vs. Temperature

1.0

0.8

0.6

0.4

0.2

0.0

3.2

2.4

1.6

0.8

0.0

-25

100

125

-25

100

Temperature (

℃)

Temperature (℃)

Figure 11. Multiplier Gain vs Temperature

Figure 12. ldet Threshold Voltage vs Temperature

FAN7527B

Typical Performance Characteristics (Continued)

Fig.13 Idet Input Hysteresis vs. Temperature

1.0

0.8

0.6

0.4

0.2

0.0

500

450

400

350

300

250

200

150

100

-25

100

125

-25

100

125

Temperature (℃)

Temperature(℃)

Figure 13. ldet Input Hysteresis vs Temperature

Figure 14. Restart Time vs Temperature

Fig.15 Max. Mult. Output Voltage vs. temperature

2.0

Fig.16 Supply Current vs. Temperature

1.6

1.2

0.8

0.4

0.0

-25

100

125

-25

100

125

Temperature (

℃)

Temperature (℃)

Figure 15. Max.Mult.Output Voltage vs Temperature

Figure 16. Supply Current vs Temperature

FAN7527B

Mechanical Dimensions

Package

Dimensions in millimeters

8-DIP

6.40 ±0.20

0.252 ±0.008

3.30 ±0.30

0.130 ±0.012

5.08

0.200

MAX

7.62

0.300

3.40 ±0.20

0.134 ±0.008

0.33

MIN

0.013

FAN7527B

Mechanical Dimensions (Continued)

Package

Dimensions in millimeters

8-SOP

Symbol

Min

Nom

Max

1.75

0.25

1.50

0.51

0.25

5.00

4.00

0.15

1.45

0.37

0.20

4.90

3.90

1.27BSC

5.99

0.10

1.25

0.35

0.19

4.80

3.80

5.79

0.25

0.50

6.20

0.50

0.90

0.70

0.36 BSC

aaa

bbb

0.25

0.10

FAN7527B

Ordering Information

Product Number

FAN7527BN

Package

Operating Temperature

8-DIP

-25 ~ +125^oC

FAN7527BM

8-SOP

DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY

PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY

LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER

DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

LIFE SUPPORT POLICY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES

OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR

CORPORATION. As used herein:

1. Life support devices or systems are devices or systems

which, (a) are intended for surgical implant into the body,

or (b) support or sustain life, and (c) whose failure to

perform when properly used in accordance with

instructions for use provided in the labeling, can be

reasonably expected to result in a significant injury of the

user.

2. A critical component in any component of a life support

device or system whose failure to perform can be

reasonably expected to cause the failure of the life support

device or system, or to affect its safety or effectiveness.

www.fairchildsemi.com

8/16/03 0.0m 001

Stock#DSxxxxxxxx

2003 Fairchild Semiconductor Corporation

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FAN7527BMX产品参数

型号:	FAN7527BMX
是否无铅：	不含铅
是否Rohs认证：	符合
生命周期：	Active
IHS 制造商：	ROCHESTER ELECTRONICS INC
零件包装代码：	SOIC
包装说明：	SOP,
针数：	8
Reach Compliance Code：	unknown
风险等级：	5.33
模拟集成电路 - 其他类型：	POWER FACTOR AND FLUORESCENT LIGHT CONTROLLER
控制模式：	CURRENT-MODE
控制技术：	PULSE WIDTH MODULATION
最大输入电压：	25 V
最小输入电压：	9.5 V
标称输入电压：	14 V
JESD-30 代码：	R-PDSO-G8
JESD-609代码：	e3
长度：	4.9 mm
湿度敏感等级：	1
功能数量：	1
端子数量：	8
最高工作温度：	125 °C
最低工作温度：	-25 °C
最大输出电流：	0.5 A
封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP
封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE
峰值回流温度（摄氏度）：	260
座面最大高度：	1.8 mm
表面贴装：	YES
切换器配置：	SINGLE
温度等级：	OTHER
端子面层：	MATTE TIN
端子形式：	GULL WING
端子节距：	1.27 mm
端子位置：	DUAL
处于峰值回流温度下的最长时间：	30
宽度：	3.9 mm

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