AH292-PL-B [DIODES]

Brushless DC Motor Controller, 0.7A, PSIP5, ROHS COMPLIANT, SIP-5;


型号：	AH292-PL-B
厂家：	DIODES INCORPORATED
描述：	Brushless DC Motor Controller, 0.7A, PSIP5, ROHS COMPLIANT, SIP-5 电动机控制输入元件
文件：	总8页 (文件大小：66K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

AH292

LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR

CONTROLLER

Description

Pin Assignments

AH292 is a monolithic fan motor controller with Hall sensor’s

capability. It contains two complementary open-collector

transistors for motor’s coil driving, automatic lock current

shutdown, and recovery protections. In addition a Frequency

generator (FG) output is also available for speed detection.

(Top View)

Vdd

292

GND

Rotor-lock shutdown detection circuit turns off the output

driver when the rotor is blocked to avoid coil overheat. Then,

the automatic recovery circuit will restart the motor. These

protected actions are repeated and periodic during the

blocked period. Until the blocking is removed, the motor

recovers and runs normally.

DO 3

DOB

SOT89-5L

The AH292 is available in SOT89-5L package.

Applications

Features

•

Two-coil BLDC cooling fans

Low to medium voltage, low power BLDC motors

•

On Chip Hall Sensor

Rotor-Locked Shutdown

Automatically Restart

Frequency Generator (FG) Output

Built-in Zener Protection for Output Driver

Operating Voltage: 1.8V to 5.75V

Output Current: I_O(AVE)= 400mA

Packaged in SOT89-5L

Green Molding Compound

Typical Application Circuit (Note 1)

Vdd

(1.8V/5.75V)

292

Coil 2

Coil 1

GND

Notes: 1. R1, R2: typical 56 Ohm

C1, C2, C3: typical 2.2µF

The R, C value need to be fine tuned based on coils design.

1.8V/5.75V DC Brush-less Fan with FG output function

1 of 8

www.diodes.com

June 2010

AH292

Document number: DS31049 Rev. 7 - 2

AH292

LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR

CONTROLLER

Pin Descriptions

Pin Name

Description

Vdd

Frequency Generation

Input Power

Output Pin

DOB

GND

Output Pin

Ground

Functional Block Diagram

Vdd

Lock detect,

shutdown and

automatic re-start

Regulator

Hall

Plate

Control Logic

Amp.

DOB

GND

2 of 8

www.diodes.com

June 2010

AH292

Document number: DS31049 Rev. 7 - 2

AH292

LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR

CONTROLLER

Absolute Maximum Ratings (T_A= 25°C)

Symbol

Characteristics

Rating

Unit

Vdd

I_O(AVE)

I_O(PEAK)

P_D

Operating Supply Voltage

Output Current

400

°C

Output Current

Power Dissipation

Storage Temperature

Maximum Junction Temperature

700

800

-55 ~ 150

150

T_ST

T_J

°C

Recommended Operating Conditions

Symbol

Characteristic

Conditions

Min

Max

Unit

Vdd

T_A

Supply Voltage (Note 2)

Operating Ambient Temperature

Operating

1.8

-20

5.75

100

°C

Notes: 2. The output of IC will be switched after the supply voltage is over 1.8V, but the magnetic characteristics won't be normal until the

supply is over 2.0V.

Electrical Characteristics (T_A= 25 °C, Vdd = 5V, unless otherwise specified)

Symbol

Idd

Characteristics

Supply current

Conditions

Min

Typ.

2.6

0.4

Max

Unit

Sec

ohm

Operating

4.0

T_RLP-ON

T_RLP-OFF

Rotor Lock Protection On Time

Rotor Lock Protection Off Time

2.4

3.6

I_O= 180mA

I_O= 350mA

300

600

1.75

0.5

V_OUT(SAT)

Output Saturation Voltage

R_DS(ON)

V_OL

Output On Resistance

FG Output Vds

I_O= 10mA

Output Zener-Breakdown Voltage

Truth Table

IN-

IN+

OUT1

OUT2

Mode

off

Rotating

Lockup protection activated

3 of 8

www.diodes.com

June 2010

AH292

Document number: DS31049 Rev. 7 - 2

AH292

LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR

CONTROLLER

Magnetic Characteristics (T_A= 25 °C, Vdd = 5V, unless otherwise specified, Note 3)

(1mT = 10 Gauss)

Symbol

Characteristics

Operation Point

Min

Typ.

Max

Unit

Bop

Brp

Bhy

-60

-30

-10

Gauss

Release Point

Hysteresis

Notes: 3. The magnetic characteristics may vary with supply voltage, operating temperature and after soldering.

Operating Characteristics

DOB

OFF

Vsat

Brp

Bop

Brp

Bop

Magnetic Flux Density in Gauss

Marking

side

( SOT89-5L )

4 of 8

www.diodes.com

June 2010

AH292

Document number: DS31049 Rev. 7 - 2

AH292

LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR

CONTROLLER

Performance Characteristics

416

135

384

140

352

145

100

320

150

T_A(°C)

P_D(mW)

T_A(°C)

800

105

288

640

110

256

576

115

224

512

120

192

480

125

160

448

130

128

P_D(mW)

Power Dissipation Curve

900

800

700

600

500

400

300

200

100

-40

100

125

150

T_A(°C)

5 of 8

www.diodes.com

June 2010

AH292

Document number: DS31049 Rev. 7 - 2

AH292

LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR

CONTROLLER

Ordering Information

AH 292 - Y G - 13

Package

Green

Packing

Y : SOT89-5L

G : Green (Note 4)

13 : Tape & Reel

Device

Bulk

13” Tape and Reel

Package Packaging

Part Number

Suffix

Code

(Note 5, 6)

Quantity

Suffix

AH292-YG-13

SOT89-5L

2500/Tape & Reel

-13

Notes: 4. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at

http://www.diodes.com/products/lead_free.html.

5. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at

http://www.diodes.com/datasheets/ap02001.pdf.

6. Reverse taping as shown on Diodes Inc. Surface Mount (SMD) Packaging document AP02007, which can be found on our website

http://www.diodes.com/datasheets/ap02007.pdf.

Marking Information

(Top View)

Y : Year : 0~9

W : Week : A~Z : 1~26 week;

a~z : 27~52 week;

292 Y W X

z represents 52 and 53 week

X : Internal code

A~Z : Green

SOT89-5L

6 of 8

www.diodes.com

June 2010

AH292

Document number: DS31049 Rev. 7 - 2

AH292

LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR

CONTROLLER

Package Outline Dimensions (All Dimensions in mm)

Sensor Location

7 of 8

www.diodes.com

June 2010

AH292

Document number: DS31049 Rev. 7 - 2

AH292

LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR

CONTROLLER

IMPORTANT NOTICE

DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS

DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A

PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).

Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other

changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability

arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any

license under its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products described

herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies

whose products are represented on Diodes Incorporated website, harmless against all damages.

Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized

sales channel.

Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall

indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees

arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.

Products described herein may be covered by one or more United States, international or foreign patents pending. Product names

and markings noted herein may also be covered by one or more United States, international or foreign trademarks.

LIFE SUPPORT

Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without

the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:

A. Life support devices or systems are devices or systems which:

1. are intended to implant into the body, or

2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided

in the labeling can be reasonably expected to result in significant injury to the user.

B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected

to cause the failure of the life support device or to affect its safety or effectiveness.

Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or

systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements

concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems,

notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further,

Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes

Incorporated products in such safety-critical, life support devices or systems.

www.diodes.com

8 of 8

www.diodes.com

June 2010

AH292

Document number: DS31049 Rev. 7 - 2

相关型号：