ST95HF datasheet(54/93 Pages) STMICROELECTRONICS

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Electrical characteristics

ST95HF

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2. This consumption can be reduced to approximately 2 µA (typ.) by setting a control bit (bit HF2RF) to ‘1’ using command

090468010710

. In this case, Reader mode is not available.

To re-enable Reader mode, reset the HF2RF bit to ‘0’ using the command 090468010700 or execute a new

PROTOCOLSELECT command.

3. The maximum differential input voltage between pins RX1 and RX2 (VRx1-Rx2) has a peak-peak of 18 V.

Table 48. Power consumption characteristics (VPS_TX from 4.5 to 5.5 V)

Symbol

Parameter

Condition

Typ.

Max.

Unit

ICC RF (VPS_TX)

RF Field ON

Supply current in RF Field (Reader mode) (1)

TA = 25 °C

120

200

ICC RF (VPS_TX)

RF Field OFF

Supply current in RF Field (Ready mode) (2)

TA = 25 °C

300

µA

ICC RF (VPS_TX)

Tag Detect

Peak(3) current during Burst detection

TA = 25 °C

120

200

1. Parameter measured using recommended output matching network. (Z load is 16

Ω and 0°).

2. This consumption can be reduced to approximately 2 µA (typ.) by setting a control bit (bit HF2RF) to ‘1’ using command

090468010710

. In this case, Reader mode is not available.

To re-enable Reader mode, reset the HF2RF bit to ‘0’ using the command 090468010700 or execute a new

PROTOCOLSELECT command.

3. The maximum differential input voltage between pins RX1 and RX2 (VRx1-Rx2) has a peak-peak of 18 V. This voltage can

be limited by adding a damping resistor in parallel of the antenna or between ST_R0 and Ground.

ST95HF Datasheet(PDF) 54 Page - STMicroelectronics

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