TLV4976-2K View Datasheet(PDF) - Infineon Technologies

Part Name

Description

Manufacturer

TLV4976-2K

Value Optimized Hall Effect Switch with Current Interface for Industrial and Consumer Applications

Infineon Technologies 

3

Specification

TLV4976-2K

Specification

3.1

Application Circuit

The advantage of the current interface is, that only two wires are necessary to connect the sensor.

At least one series resistor is required to convert the two output states of the Hall sensor from current consumption

to a voltage information.

A typical value for RL is 100Ω. This gives a typical signal voltage level VSIG = 0.8V in the Off state and 1.4V in the

On state.

If the sensor is operated in an application environment with disturbances on the supply line, an additional series

resistor RS is recommended. The maximum value for the series resistor RS can be calculated using the following

formula:

RSmax

=

V----S---u---p--p---l-y---m----i-n----–----V----S---m----i-n-

IShighmax

–

RL

VS_min is the minimal supply voltage which might occur due to disturbances on the supply line VS.

Example: VSupplymin = 6V; VSmin = 3V; RL = 100Ω; IShighmax = 17mA : RSmax = 76.5Ω

V Suppl y

RS

4.7 nF

VS

TLV

4976-2K

GND

µC

VSIG Input

RL

µC GND

Figure 5 Application Circuit

Data Sheet

10

Rev. 1.1, 2010-08-02

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