Datasheet

PN532_C1 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2017. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.6 — 28 November 2017
115436 195 of 222
NXP Semiconductors
PN532/C1
Near Field Communication (NFC) controller
12. Characteristics
Unless otherwise specified, the limits are given for the full operating conditions. The
typical value is given for 25C, VBAT = 3.4 V and PVDD = 3 V.
Timings are only given from characterization results.
12.1 Power management characteristics
[1] Decreasing the decoupling capacitance can decrease the power supply bursts rejection.
[2] The capacitance should be placed closed to the pins, and can be splitted (see Figure 51 on page 212
)
12.2 Overcurrent detection
The following values are guaranteed by design. Only functional testing is done in
production for case Sel_overcurrent1 = Sel_overcurrent0 =1.
Table 293. Power management characteristics
Symbol Parameter Conditions Min Typ Max Unit
VBAT Battery power supply range V
SS
=0V 2.7 5.5 V
V
DVDD
LDO output VBAT > 3.4 V
I
DVDD
=150mA
2.73 3.4V
LDO
OFF
LDO offset VBAT = 3.4 V
I
DVDD
=150 mA Offset
enabled
300 400 700 mV
V
th1
Reset threshold on DV
DD
falling 2.04 2.32 2.6 V
Vhys1 Vth1 hysteresis 40 90 mV
Cdec DVDD decoupling capacitor Low ESR, like X7R or
X5R ceramic capacitor
[1]
10 F
PSR Power supply rejection on DV
DD
LDO offset enabled.
F <10 kHz. Cdec = 10 F
-46 dB
F
cPSR
PSR -3dB cut-off frequency Standard LDO mode.
Cdec = 10 F
10 kHz
SV
DD
SV
DD
output voltage VBAT > 3.4 V
I
SVDD
=30mA
2.7 3.3 VV
Table 294. Overcurrent detection characteristics
Symbol Parameter Conditions Min Typ Max Unit
I
Overcurrent
I
DVDD
threshold for overcurrent detection Sel_overcurrent1=0
Sel_overcurrent0=0
300 mA
Sel_overcurrent1=0
Sel_overcurrent0=1
210 mA
Sel_overcurrent1=1
Sel_overcurrent0=0
180 mA
Sel_overcurrent1=1
Sel_overcurrent0=1
150 mA