mfrc522 NXP Semiconductors, mfrc522 Datasheet - Page 87

• Manufacturer Part Number: mfrc522
• Description: Contactless Reader Ic
• Manufacturer: NXP Semiconductors

NXP Semiconductors
112132
Product data sheet
23.2 Current Consumption
Table 168: Current Consumption
[1]
[2]
[3]
[4]
[5]
[6]
Symbol
I
I
I
I
I
I
I
I
HPD
SPD
DVDD
AVDD
AVDD,RCVOFF
PVDD
TVDD
SVDD
I
I
During operation with a typical circuitry the overall current is below 100 mA.
I
Typical value using a complementary driver configuration and an antenna matched to 40 Ω between TX1
and TX2 at 13.56 MHz
I
TVDD
PVDD
SPD
SVDD
and I
depends on TV
depends on the overall load at the digital pins.
depends on the load at the MFOUT pin.
HPD
Parameter
Hard Power-down
Current
Soft Power-down
Current
Digital Supply
Current
Analog Supply
Current
Analog Supply
Current, receiver
switched off
Pad Supply
Current
Transmitter Supply
Current
MFIN/MFOUT Pad
Supply Current
are the total currents over all supplies.
DD
Rev. 3.2 — 22 May 2007
and the external circuitry connected to Tx1 and Tx2
Conditions
AV
TV
N
AV
TV
AV
bit RCVOff = 0
AV
bit RCVOff = 1
Continuous Wave
DV
RESET
DD
DD
DD
DD
DD
DD
DD
= DV
= 3 V,
= PV
= DV
= PV
= 3 V,
= 3 V
= LOW
DD
DD
DD
DD
= 3 V,
= 3 V
=
=
[4]
[4]
[2]
[1][3]
[6]
Min
-
-
-
-
-
-
-
-
Typ
-
-
6.5
7
3
-
60
-
Contactless Reader IC
[5]
MFRC522
© NXP B.V. 2007. All rights reserved.
Max
5
10
9
10
5
40
100
4
87 of 109
Unit
μA
μA
mA
mA
mA
mA
mA
mA