SS1101-ALSOT datasheet(4/7 Pages) SECELECTRONICS

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SS1101-A

Unipolar Hall Switch-Low Sensitivity

General Electrical Specifications

DC Operating Parameters TA = 25°C, VDD= 3.3V to 24V (unless otherwise specified)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

Supply Voltage

VDD

Operating

3.3

Supply Current

IDD

B < BRP

1.5

2.5

Output Saturation Voltage

VDSon

IOUT = 20mA, B > BOP

0.4

0.5

Output Leakage Current

IOFF

B < BRP VOUT = 24V

0.01

µA

Output Rise Time

RL = 1kΩ, CL = 20pF

0.25

µs

Output Fall Time

RL =1kΩ, CL = 20pF

0.25

µs

Magnetic Specifications

DC Operating Parameters VDD = 3.3V to 24V (unless otherwise specified)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

Operating Point

BOP

110

Release Point

BRP

Hysteresis

BHYS

Ta=25°C,Vdd=12V DC

Application Information

Typical Three-Wire Application Circuit

Application Comments

For proper 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 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 = VCC

2/ R1)

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

Therefore, a 100

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

Both solutions provide the required reverse voltage protection.

V1.00

Nov 26, 2012

SS1101-ALSOT Datasheet(PDF) 4 Page - SEC Electronics Inc.

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