SDC477AZ4-E1 [SDC]

Switch Hall IC;


型号：	SDC477AZ4-E1
厂家：	Shaoxing Devechip Microelectronics Co., Ltd
描述：	Switch Hall IC
文件：	总8页 (文件大小：250K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Datasheet

Switch Hall IC

SDC477

General Description

Features

The SDC477, is an integrated Hall sensor with H-bridged

output driver designed for brushless DC motor

applications. The high sensitivity of Hall-effect sensor is

suitable for motors from mini-type CPU coolers to

blowers and DC fans. Typical operation current is 250mA

and operating voltage range is wide.



One-chip hall sensor

Wide operating voltage range: 3.8V~20V

Output sink current up to 250mA

Output thermal shutdown protection

Package : TO-94

Applications



Brushless DC motor

Brushless DC fan

Revolution counting

Speed measurement

TO-94

Figure 1. Package Type

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Datasheet

Switch Hall IC

SDC477

Pin Configuration

Package: TO-94

1.VDD

2.DO

3.DOB

4.GND

1 2 3 4

Figure 2. Pin Configuration

Pin Number

Pin Name

VCC

Function

Supply voltage pin

Output 2 pin

Output 3 pin

Ground pin

DOB

GND

Table1. Pin Description

Functional Block Diagram

Regulator

Pre-Driver

AMP

Thermal

Shutdown

Figure 3. Functional Block Diagram

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Datasheet

Switch Hall IC

SDC477

Ordering Information

X X

SDC477 X

E1: Pb-free

G1: Halogen-free

Circuit Type

Package

TO-94: Z4

Magnetic Characteristics:

A/a/B/C/D

Part Number

Marking ID

Temperature

Range

Packing

Type

Bulk

Package

Pb-free

Halogen-free

SDC477AZ4-G1

SDC477aZ4-G1

SDC477BZ4-G1

SDC477CZ4-G1

SDC477DZ4-G1

Pb-free

477

Halogen-free

SDC477AZ4-E1

SDC477aZ4-E1

SDC477BZ4-E1

SDC477CZ4-E1

SDC477DZ4-E1

477G

477

Bulk

TO-94

-20°C~85°C

477

Bulk

477

Bulk

477

Bulk

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Datasheet

Switch Hall IC

SDC477

Absolute Maximum Ratings (Note: Stresses greater than those listed under absolute maximum ratings may cause

permanent damage to the device.)

Parameter

Symbol

Value

Units

Supply Voltage

Output Voltage

V_CC

V_OUT

Continuous

Hold

250

350

700

Output current

I_OUT

Peak

Package power dissipation

Storage temperature range

Maximum junction temperature

P_D

T_S

550

-65 to 150

150

°C

T_J

°C

ESD, HBM model per Mil-Std-883, Method 3015

ESD, MM model per JEDEC EIA/JESD22-A115

Latch-up test per JEDEC 78

HBM

2000

200

Table 2. Absolute Maximum Ratings

Recommended Operating Conditions

Parameter

Power supply

Operation temperature

Symbol

Min

3.8

Max

Unit

V_CC

-20

°C

Table 3 Recommended Operating Conditions

Electrical Characteristics (Ta=25°C, V_CC=18V, unless otherwise specified)

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

Supply voltage

V_CC

3.8

Quiescent supply current

Output saturation voltage

I_CC

V_CC= 20V,other pins are open

V_CC=18V, I_C= 200mA

R_L=820Ω, C_L=20pF

V_CE(sink)

0.5

0.9

0.5

0.8

1.3

1.0

1.5

1.0

V_CE(drive)

Rise time

t_r

t_f

Fall time

Switch time differential

Δt

Table 4. Electrical Characteristics

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Datasheet

Switch Hall IC

SDC477

Magnetic Characteristics (V_CC=18V, unless otherwise specified)

VDO

VDOB

B_H

B_RP

B_OP

B_RP

B_OP

Figure 4. Magnetic Characteristics

Grade A

Symbol

Parameter

Operate point

Min

Max

Unit

B_OP

B_RP

Release point

-41

-10

Grade a

Symbol

B_OP

Parameter

Operate point

Min

Max

Unit

Release point

B_RP

-70

-10

Grade B

Parameter

Symbol

B_OP

Min

Max

Unit

Operate point

Release point

B_RP

-70

Grade C

Parameter

Symbol

B_OP

Min

Max

Unit

Operate point

Release point

B_RP

-90

Grade D

Parameter

Symbol

B_OP

Min

Max

110

Unit

Operate point

Release point

B_RP

-110

Table 5. Magnetic Characteristics

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Datasheet

Switch Hall IC

SDC477

Function Description

The figure below is the circuit diagram of H-bridge

transistors. The single-phase motor rotation depends on a

switching current of coil L1. When the magnetic pole is N

pole, Q2, Q3, Q5 are turn-off and Q1, Q4, Q6 are turn-on,

L1 has a current from DOB to DO. And when the magnetic

pole is S pole, Q1, Q4, Q6 are turn-off and Q2, Q3, Q5 are

turn-on. There is a current from DO to DOB between L1.

VCC

DOB

GND

Figure 5. H-Bridge Transistors Output

Typical Application

VCC

SDC477

DOB

GND

Figure 6. Typical Application

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Datasheet

Switch Hall IC

SDC477

Package Dimension

TO-94

Dimensions In Millimeters

Dimensions In Inches

Symbol

Min

Max

1.800

0.900

0.550

0.510

5.350

4.850

3.750

Min

Max

0.071

0.035

0.022

0.020

0.214

0.194

0.148

1.400

0.700

0.380

0.360

5.050

4.550

3.450

0.055

0.028

0.015

0.014

0.202

0.128

0.136

1.270 TYP.

10°TYP.

0.050 TYP.

10°TYP.

14.300

14.700

0.572

0.588

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Datasheet

Switch Hall IC

SDC477

Shaoxing Devechip Microelectronics Co., Ltd.

http://www.sdc-semi.com/

IMPORTANT NOTICE

Information in this document is provided solely in connection with Shaoxing Devechip Microelectronics Co., Ltd. (abbr. SDC) products.

SDC reserves the right to make changes, corrections, modifications or improvements, to this document, and the products and services

described herein at anytime, without notice. SDC does not assume any responsibility for use of any its products for any particular

purpose, nor does SDC assume any liability arising out of the application or use of any its products or circuits. SDC does not convey

any license under its patent rights or other rights nor the rights of others.

Headquarters of Shaoxing

Address: Tian Mu Road, No13,

Shaoxing city, Zhejiang province, China

Zip code: 312000

Shenzhen Branch

Address: 22A, Shangbu building, Nan Yuan Road, No.68,

Futian District, Shenzhen city, Guangdong province, China

Zip code: 518031

Tel: (86) 0575-8861 6750

Tel: (86) 0755-8366 1155

Fax: (86) 0575-8862 2882

Fax: (86) 0755-8301 8528

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