71M6545 Datasheet, PDF (119/134 Pages) Maxim Integrated Products – Four-Quadrant Metering, Phase Metrology Processors Flash/RAM Size

PDS_6545_009
Data Sheet 71M6545/H
6.4.7 Internal Power Fault Comparators
Parameter
Overall response time
Falling Threshold
3.0 V Comparator
2.8 V Comparator
Difference 3.0V and 2.8V Comparators
Falling Threshold
2.25 V Comparator
2.0 V Comparator
Difference 2.25V and 2.0V Comparators
Hysteresis,
(Rising Threshold - Falling Threshold)
3.0 V Comparator
2.8 V Comparator
2.25 V Comparator
2.0 V Comparator
Condition
Min Typ Max Unit
100mV overdrive, falling 20
100mV overdrive, rising
200 µs
200 µs
V3P3 falling
2.83 2.93 3.03 V
2.75 2.81 2.87 V
50 136 220 mV
VDD falling
2.2 2.25 2.5
V
1.90 2.00 2.20 V
0.15 0.25 0.35 V
T_A = 22 °C
22 45 65 mV
25 42 60 mV
10 33 60 mV
10 28 60 mV
6.4.8 2.5 V Voltage Regulator – System Power
Table 87: 2.5 V Voltage Regulator Performance Specifications (VDD pin)
Parameter
Condition
Min Typ Max Unit
V2P5
V3P3 = 3.0 V - 3.8 V
ILOAD = 0 mA
2.55 2.65 2.75
V
V2P5 load regulation
V3P3 = 3.3 V
ILOAD = 0 mA to 5 mA
40
mV
ILOAD = 5 mA,
Voltage overhead V3P3SYS-V2P5 Reduce V3P3D until V2P5
drops 200 mV
440
mV
6.4.9 Crystal Oscillator
Measurement conditions: Crystal disconnected, test load of 200 pF/100 kΩ between XOUT and GNDD.
Table 88: Crystal Oscillator Performance Specifications
Parameter
Condition
Min Typ Max Unit
Maximum Output Power to Crystal Crystal connected, see note 1
XIN to XOUT Capacitance
(see note 1)
1
μW
3
pF
Capacitance change on XOUT
RTC_ADJ = 7F to 0,
Bias voltage = unbiased
Vpp = 0.1 V
15
pF
Note:
1. Guaranteed by design; not production tested.
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