MA7110 [MPOWER]

Single Phase Hall Effect Smart Fan Driver;


型号：	MA7110
厂家：	Major-Power
描述：	Single Phase Hall Effect Smart Fan Driver 测试二极管
文件：	总9页 (文件大小：531K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

MA7110

Single Phas e Hall Effect Smart Fan Driver



GENERAL DESCRIPTION

The MA7110 is an integrated Hall sensor with H-Bridged output driver designed for

brushless DC motor applications. The device includes an on-chip Hall sensor for magnetic

sensing, an amplifier that amplifies the Hall voltage, a comparator to provide switching

hysteresis for noise rejection, a bi-directional drivers for sinking and driving large current

load.

To avoid coil burning, rotor-lock shutdown detection circuit shut down the output driver

if the rotor is blocked and then the automatic recovery circuit will try to restart the motor.

This function repeats while rotor is blocked. Until the blocking is removed, the motor

recovers running normally.



FEATURES

- On-Chip High sensitivity Hall-effect Sensor

- Operating Voltage: 3.3V to 18V

- H-Bridge Output Drivers for Single Coil

- Thermal Shutdown Protection

- Low Output Switching Current Noise

- -40°C to 85°C Operating Temperature

- Rotor-locked shutdown and automatically restart function

- For 5V and 12V DC motor / FAN systems

- Low Profile SIP-4L & SOT23-5L/F Package



BLOCK DIAGRAM

VDD

FG(For SOT23-5)

Rotor-locked shutdown

Open

Drain

Output

and

Regulator

automatically restart

H-bridge

Hall

MOS

Driver

Plate

Control

Logic

Amp.

DOB

GND

Thermal

shutdown

Major Power Technology Co., Ltd.

Rev.1.2 Nov.10, 2017

1/9

MA7110

 PIN ASSIGNMENT

The package of MA7110 is SIP-4L; the pin assignment is given by:

1.90mm

(Top View)

1.30mm

(Sensor Location)

VDD

Name

Description

VDD Supply Voltage

DO Output 1

(Sensor Location)

(Top View)

0.8mm

DOB Output 2

GND Ground.

Frequency

Generation

DOB

FG GND

1.0mm

VDD DO DOB GND

SOT23-5L/F

SIP-4L



RDER/MARKING INFORMATION

Order Information

Top Marking (SIP-4L)

MA7110XXX

Part number

ID code:internal

WW:01~52

7110

Y Y WW X

Package Type

P4: SIP-4L

Packing

Blank: Bag

A : Taping

Year:16=2016

Order Information

MA7110X X

Top Marking (SOT23-5L/F)

ID Code: Internal

H D Y W X

Week: 01~26(A~Z)

27~52(a~z)

Package Type

B: SOT23-5L

BP: SOT23-5F

Packing

Blank: Bag

A : Taping

Year : 6 = 2016

Major Power Technology Co., Ltd.

Rev.1.2 Nov.10, 2017

2/9

MA7110



A BSOLUTE MAXIMUM RATINGS (at T_A=25°C)

Characteristics

Symbol

Rating

Unit

Supply Voltage

Magnetic Flux Density

V_CC

Unlimited Gauss

400

Continuous

Hold

Output Current

I_O

800

Peak (start up)

900

550

-50 to +150

150

Power Dissipation

Storage Temperature Range

Junction Temperature

P_D

T_STG

T_J

°C

Thermal Resistance from Junction to case

Thermal Resistance from Junction to ambient

θ_JC

θ_JA

227

°C/W

Recommended Operating Conditions (T_A=25 °C)

Supply Voltage

Ambient Temperature

V_CC

T_A

3.3 to 18

-40 to 85

°C



ELECTRICAL CHARACTERISTICS

(V_DD= 12V, T_A= +25°C, unless otherwise noted.)

Characteristics

Average Supply Current

On resistance(RPMOS+RNMOS)

Locked Protection On

Symbol

Conditions

no load

Min Typ Max Units

I_DD

2.6

0.45

2.6

R_DS(ON)300mA

Tlrp-on

Sec

°C

Locked Protection Off

Tlrp-off

Thermal Shutdown Threshold

Operating Point

T_SHUT

B_OP

150

30 50 Gauss

Releasing Point

B_RP

-50 -30 -5 Gauss

60 Gauss

Hysteresis

B_HYS

Note: Guaranteed by design.

Major Power Technology Co., Ltd.

Rev.1.2 Nov.10, 2017

3/9

MA7110

Driver output vs. magnetic pole

Characteristics

Test Conditions

DOB

Low

North pole

B < Brp

High

Low

South pole

B > Bop

High

Note: The magnetic pole is applied facing the chip surface side of the package

Active Area Depth

Marking side

0.7mm

CHIP

Brp

Bop

Brp

Bop

SOT L/F

DOB

CHIP



APPLICATION CIRCUIT

1. Circuit 1

Marking

side

MA7110

COIL

VDD

GND

V_DD

DOB

NOTE

1. D1 is reversed protection diode,

2. C1 : ECA >=2.2uF, MLCC>=10uF

2. Circuit 2

MA7110

COIL

VDD

GND

DOB

V_DD

Optional

100nF

Major Power Technology Co., Ltd.

Rev.1.2 Nov.10, 2017

4/9

MA7110



APPLICATION CIRCUIT

3. Circuit 3

V_CC

Optional

100nF

10k

Output

VDD

GND

DOB

Coil



PERFORMANCE CHARACTERISTICS

286

130

264

135

242

140

100

220

150

T_A(C)

Pd (mW)

T_A(C)

550 440

105 110

198 176

396

115

154

352

120

132

308

125

110

Pd (mW)

Major Power Technology Co., Ltd.

Rev.1.2 Nov.10, 2017

5/9

MA7110

Major Power Technology Co., Ltd.

Rev.1.2 Nov.10, 2017

6/9

MA7110



PACKAGE OUTLINES

1. SIP-4L

1.55mm

+/-0.2

5.15mm

+/-0.17

0.8mm

+/-0.1

0.4

0.41mm

+/-0.05

0.38mm

+/-0.03

1.27mm

Major Power Technology Co., Ltd.

Rev.1.2 Nov.10, 2017

7/9

MA7110

2. SOT23-5L

GAUGE PLANE

DETAL A

1(4x)

DETAL A

2(4x)

b(5x)

Dimensions in Millimeters

Dimensions in Inches

Symbol

Min.

Nom.

Max.

Min.

Nom.

Max.

1.05

0.05

1.00

0.30

0.08

2.80

1.50

2.60

0.30

0.50

1.80

0.85

0^o

1.35

0.15

1.20

0.50

0.22

3.00

1.70

3.00

0.60

0.70

2.00

1.05

8^o

0.041

0.002

0.039

0.012

0.003

0.110

0.059

0.102

0.012

0.020

0.071

0.033

0^o

0.053

0.006

0.047

0.020

0.009

0.118

0.067

0.118

0.024

0.028

0.079

0.041

8^o

1.10

2.90

1.60

2.80

0.043

0.114

0.063

0.110

0.60

1.90

0.95

4^o

0.024

0.075

0.037

4^o

θ1

θ2

5^o

10^o

15^o

5^o

10^o

15^o

5^o

15^o

5^o

15^o

Major Power Technology Co., Ltd.

Rev.1.2 Nov.10, 2017

8/9

MA7110

3. SOT23-5F

Dimensions in Millimeters

Dimensions in Inches

Symbol

Min.

Nom.

1.00

0.40

Max.

Min.

Nom.

0.039

Max.

0.85

0.30

0.08

2.70

1.40

3.90

1.15

0.55

0.22

3.10

1.80

4.25

0.033

0.012

0.003

0.106

0.055

0.153

0.045

0.020

0.009

0.122

0.071

0.167

2.90

1.60

4.10

1.114

0.063

0.161

0.075BSC

0.037BSC

1.90BSC

0.95BSC

Major Power Technology Co., Ltd.

Rev.1.2 Nov.10, 2017

9/9

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