单机霍尔开关SS1104使用手册

1、 Features and BenefitsApplication Examples Automotive, Consumer and Industrial Solid-state switch Brushless DC motor commutation Speed detection Angular position detection Proximity detection Current detector 3.5V to 24V Operation -40 to 150 Superior temperature operation CMOS technology Low current

2、 consumption Chopper-stabilized amplifier stage Open drain output Low sensitivity Small Size-SOT23 3L or SIP 3L both RoHS compliant packages 3 pin SOT23 (suffix SO 3 pin SIP (suffix UAFunctional Block Diagram SIP Package SOT PackagePin 1 VDD Pin 1 VDD Pin 2 GND Pin 2 OUT Pin 3 OUTPin 3 GND General D

3、escriptionsThe 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 b

4、e used with bipolar or CMOS logic circuits.These Hall-effect switches are monolithic integrated circuits with tighter magnetic specifications, designed to operate continuously over extended temperatures to +150 ,and are more stable with both temperature and supply voltage changes. The unipolar switc

5、hing 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.The device is delivered in a Small Outline Tran

6、sistor (SOT or in a Plastic Single In Line (SIP 3L flat. Both 3-lead packages are RoHS compliant.Glossary of TermsMilliTesla (mT, Gauss Units of magnetic flux density: 1mT = 10 GaussRoHS Restriction of Hazardous SubstancesOperating Point (BOP Magnetic flux density applied on the branded side of the

7、package which turns the output driver ON (VOUT = VDSon Release Point (BRP Magnetic flux density applied on the branded side of the package which turns the output driver OFF (VOUT = high Pin Definitions and DescriptionsSOT Pin Pin Type FunctionV DD S upp l y S upp l y V o l t a g e p i n O UT O u t p

8、u t Open Dr a i n Output p i n GNDG r oundGround p i n Absolute Maximum RatingsParameter Symbol ValueUnitsS upp l y V o l t a g e V DD 28 V S upp l y C u rr e n t I DD 50 m A Output V o l t a g e V O UT 28 V Output Cu rr e n tI O UT 50 m A Storage Temperature Range T S-65 to 170CAbsolute maximum rat

9、ings Operating Temperature Range Symbol Value UnitsTemperature S u ff i x “ E ” T A -40 to 85 C Temperature S u ff i x “ E ” T A -40 to 125 C Temperature S u ff i x “ L ”T A-40 to 150CExceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute-maximum- rated conditions fo

10、rextended periods may affect device reliability. General Electrical SpecificationsDC Operating Parameters TA = 25 , VDD = 3.5V to 24V (unless otherwise specifiedParameter Symbol Test Conditions MinTypMaxUnitsS upp l y V o l t a g e V DD O p e r a t i ng V S upp l y C u rr e n t I DD B B OP 0.5 V Out

11、put L ea k a g e C u rr e n t I O FF B B RP VOUT = 24V 0.01 10AOutput Ri s e T i m e t r R L = 1k , CL = 20pF 0.25 s Output F a ll T i m et fR L =1k , CL = 20pF0.25sMagnetic SpecificationsDC Operating Parameters VDD = 3.5V to 24V (unless otherwise specified SS1104 Parameter Symbol Test Conditions Mi

12、n Typ Max Units O p e r a t i ng P o i n t B OP 160190 220 G R e l ea s e P o i n t B RP 110 150 200 G Hy s t e r e s i sB H Y STa=25 ,Vdd=12V DC40GApplication InformationTypical Three-Wire Application Circuit Automotive and Harsh, Noisy Environments Three-Wire Circuit Application CommentsFor proper

13、 operation, a 100nF bypass capacitor should be placed as close as possible to the device between the VDD and ground pin. For reverse voltage protection, it is recommended to connect a resistor or a diode in series with the VDD pin.When using a resistor, three points are important:- the resistor has

14、to limit the reverse current to 50mA maximum (VCC / R1 50mA- the resulting device supply voltage VDD has to be higher than VDD min (VDD = VCC R1.IDD- the resistor has to withstand the power dissipated in reverse voltage condition (PD = VCC2/ R1When using a diode, a reverse current cannot flow and th

15、e voltage drop is almost constant (0.7V.Therefore, a 100/0.25W 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 environm

16、ent, it is recommended that figure 13.3 from the Application Information section is used.The low-pass filter formed by R1 and C1 and the zener diode Z1 bypass the disturbances or voltage spikesoccurring on the device supply voltage VDD. The diode D1 provides additional reverse voltage protection.ESD

17、 PrecautionsElectronic semiconductor products are sensitive to Electro Static Discharge (ESD.Always observe Electro Static Discharge control procedures whenever handling semiconductor products.SS1104 Unipolar Hall Switch-Low Sensitivity Package Information Package UA, 3-Pin SIP: 6 V2.00 May 1, 2012 SS1104 Unipolar Hall Switch-Low Sensitivity Package LH, 3-Pin SOT-23: Ordering Information Part No. SS1104ESOT SS1104EUA SS1104KSOT SS1104KUA SS1104LSOT SS1104LUA Pb-free YES YES YES YES YES YES Temperature Code -40C to 85C -40C to 85C -40C to 1