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STRFNFCA 数据表(PDF) 48 Page - STMicroelectronics

部件名 STRFNFCA
功能描述  Near field communication transceiver
PDF  74 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STRFNFCA 数据表(HTML) 48 Page - STMicroelectronics

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Electrical characteristics
STRFNFCA
48/74
Doc ID 023077 Rev 10
6.3
Power consumption characteristics
TA = –25°C to 85°C, unless otherwise specified.
The STRFNFCA supports two VPS_TX supply ranges for RF drivers: 2.7V to 3.3V or 4.5V
to 5.5V. Antenna matching circuit must be defined accordingly.
Table 39.
Power consumption characteristics (VPS_Main from 2.7 to 3.3 V)
Symbol
Parameter
Condition
Typ.
Max.
Unit
ICC (VPS)
Power-up
Supply current in power-up state
TA = 25°C
200
600
µA
ICC (VPS)
Card Emulation
Supply current in Card Emulation mode
TA = 25°C
2.5
5.0
mA
ICC (VPS)
Hibernate
Supply current in Hibernate state
TA = 25°C
1
5
µA
ICC (VPS)
Sleep/Field
Detector
Supply current in Sleep/Field Detector
state
TA = 25°C
20/25
80
µA
ICC (VPS) Ready Supply current in Ready state
TA = 25°C
2.5
5.0
mA
ICC (VPS) Tag
Detect
Average supply current in Tag Detector
state
TA = 25°C,
4RF bursts
per second
50
100
µA
Table 40.
Power consumption characteristics (VPS_TX from 2.7 to 3.3 V)
Symbol
Parameter
Condition
Typ.
Max.
Unit
ICC RF (VPS_TX)
RF Field ON
Supply current in RF Field (Reader
mode) (1)
1.
Parameter measured using recommended output matching network. (Z load is 27
Ω and 0°).
TA = 25°C
70
100
mA
ICC RF (VPS_TX)
RF Field OFF
Supply current in RF Field (Ready
mode) (2)
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.
TA = 25°C
200
µA
ICC RF (VPS_TX)
Tag Detect
Peak(3) current during Burst detection
3.
The maximum differential input voltage between pins RX1 and RX2 (VRx1-Rx2) has a peak-peak of 18 V.
TA = 25°C
70
100
mA
Table 41.
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)
1.
Parameter measured using recommended output matching network. (Z load is 16
Ω and 0°).
TA = 25°C
120
200
mA
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
mA



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