SS1104KUA [SECELECTRONICS]

Unipolar Hall Switch-Low Sensitivity;


型号：	SS1104KUA
厂家：	SEC Electronics Inc.
描述：	Unipolar Hall Switch-Low Sensitivity
文件：	总7页 (文件大小：257K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

SS1104

Unipolar Hall Switch-Low Sensitivity

Application Examples

Features and Benefits

–

Automotive, Consumer and Industrial

Solid-state switch

–

3.5V to 24V Operation

-40°C to 150°C Superior temperature operation

CMOS technology

Low current consumption

Chopper-stabilized amplifier stage

Open drain output

Low sensitivity

Small Size-SOT23 3L or SIP 3L

both RoHS compliant packages

Brushless DC motor commutation

Speed detection

Angular position detection

Proximity detection

Current detector

3 pin SOT23 (suffix SO)

3 pin SIP (suffix UA)

Functional Block Diagram

VDD

Voltage

Regulator

OUT

Chopper

Hall

Plate

GND

SIP Package

Pin 1 – V_DD

Pin 2 – GND

Pin 3 – OUT

SOT Package

Pin 1 – V_DD

Pin 2 – OUT

Pin 3 – GND

V2.00 May 1, 2012

SS1104

Unipolar Hall Switch-Low Sensitivity

General Descriptions

The SS1104 is a unipolar Hall-effect sensor IC fabricated

from CMOS technology. The device integrates a voltage

regulator, Hall sensor with dynamic offset cancellation

system, small signal amplifier, Schmitt trigger and an

open-drain output driver. With suitable output pull up, they

can be used with bipolar or CMOS logic circuits.

more stable with both temperature and supply voltage

changes. The unipolar switching characteristic makes these

devices ideal for use with a simple bar or rod magnet.

Thanks to its wide operating voltage range and extended

choice of temperature range, it is quite suitable for use in

automotive, industrial and consumer applications.

These Hall-effect switches are monolithic integrated circuits

with tighter magnetic specifications, designed to operate

continuously over extended temperatures to +150°C,and are

The device is delivered in a Small Outline Transistor (SOT)

or in a Plastic Single In Line (SIP 3L flat). Both 3-lead

packages are RoHS compliant.

Glossary of Terms

MilliTesla (mT),

RoHS

Gauss Units of magnetic flux density: 1mT = 10 Gauss

Restriction of Hazardous Substances

Magnetic flux density applied on the branded side of the package which turns the output

driver ON (V_OUT= V_DSon

Operating Point (B_OP

)

Release Point (B_RP

)

Magnetic flux density applied on the branded side of the package which turns the output

driver OFF (V_OUT= high)

V2.00 May 1, 2012

SS1104

Unipolar Hall Switch-Low Sensitivity

Pin Definitions and Descriptions

SOT Pin №

SIP Pin №

Name

Type

upp

Function

GND

upp

Open Dr

Ground

ain Output pin

ound

Absolute Maximum Ratings

Parameter

Symbol

Value

Units

upp

Supp

Output

Output C

urr

Storage Temperature Range

Absolute maximum ratings

Operating Temperature Range

-65 to 170

Symbol

Value

Units

Temperature

ffi

“

”

-40 to 85

”

-40 to 125

-40 to 150

”

Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute-maximum- rated conditions for

extended periods may affect device reliability.

V2.00 May 1, 2012

SS1104

Unipolar Hall Switch-Low Sensitivity

General Electrical Specifications

DC Operating Parameters T_A= 25°C, V_DD= 3.5V to 24V (unless otherwise specified)

Typ

Parameter

Symbol

Test Conditions

B_RP

Min

3.5

Max

Units

upp

1.5

2.5

0.4

B <

Supp

= 20mA, B >

B_OP

Output

lta

0.5

OUT

B <

24V

Leakage Current

B_RPOUT

0.01

0.25

µA

Output R

Output

ise Time

= 1kΩ, C

20pF

=1kΩ, C = 20pF

Magnetic Specifications

DC Operating Parameters V

= 3.5V to 24V (unless otherwise specified)

SS1104

Test Conditions

Typ

Parameter

Symbol

B_OP

Min

Max

220

Units

190

150

160

110

Ta=25°C,Vdd=12V DC

lea

B_RP

200

B_H

Hysteresis

Application Information

Typical Three-Wire Application Circuit

V2.00 May 1, 2012

SS1104

Unipolar Hall Switch-Low Sensitivity

Automotive and Harsh, Noisy Environments Three-Wire Circuit

Application Comments

For proper operation, a 100nF bypass capacitor should be placed as close as possible to the device between the V_DDand ground pin.

For reverse voltage protection, it is recommended to connect a resistor or a diode in series with the V_DDpin.

When using a resistor, three points are important:

- the resistor has to limit the reverse current to 50mA maximum (V_CC/ R1(≈50mA)

- the resulting device supply voltage V_DDhas to be higher than V_DDmin (V_DD= V_CC– R1∙I_DD

)

- the resistor has to withstand the power dissipated in reverse voltage condition (PD = V_CC²/ R1)

When using a diode, a reverse current cannot flow and the voltage drop is almost constant (≈0.7V).

Therefore, a 100Ω/0.25W resistor for 5V application and a diode for higher supply voltage are recommended.

Both solutions provide the required reverse voltage protection.

When a weak power supply is used or when the device is intended to be used in noisy environment, it is recommended that figure above

is used.

The low-pass filter formed by R1 and C1 and the Zener diode Z1 bypass the disturbances or voltage spikes occurring on the device

supply voltage V_DD. The diode D1 provides additional reverse voltage protection.

ESD Precautions

Electronic semiconductor products are sensitive to Electro Static Discharge (ESD).

Always observe Electro Static Discharge control procedures whenever handling semiconductor products.

V2.00 May 1, 2012

SS1104

Unipolar Hall Switch-Low Sensitivity

Package Information

Package UA, 3-Pin SIP:

V2.00 May 1, 2012

SS1104

Unipolar Hall Switch-Low Sensitivity

Package LH, 3-Pin SOT-23:

Ordering Information

Part No.

Pb-free

YES

Temperature Code

-40°C to 85°C

-40°C to 125°C

-40°C to 150°C

Package Code

SOT-23

TO-92

Packing

SS1104ESOT

SS1104EUA

SS1104KSOT

SS1104KUA

SS1104LSOT

SS1104LUA

7-in. reel, 3000 pieces/ reel

Bulk, 1000 pieces/ bag

7-in. reel, 3000 pieces/ reel

Bulk, 1000 pieces/ bag

7-in. reel, 3000 pieces/ reel

Bulk, 1000 pieces/ bag

SOT-23

TO-92

SOT-23

TO-92

V2.00 May 1, 2012

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