User manual

CY8C27143, CY8C27243
CY8C27443, CY8C27543, CY8C27643
Document Number: 38-12012 Rev. *O Page 25 of 53
DC Switch Mode Pump Specifications
The following table lists guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75V to 5.25V
and -40°C T
A
85°C, or 3.0V to 3.6V and -40°C T
A
85°C, respectively. Typical parameters apply to 5V and 3.3V at 25°C and
are for design guidance only.
Table 22. 3.3V DC Analog Output Buffer Specifications
Symbol Description Min Typ Max Units
V
OSOB
Input Offset Voltage (Absolute Value) 3 12 mV
TCV
OSOB
Average Input Offset Voltage Drift +6 μV/°C
V
CMOB
Common-Mode Input Voltage Range 0.5 - Vdd - 1.0 V
R
OUTOB
Output Resistance
Power = Low
Power = High
1
1
W
W
V
OHIGHOB
High Output Voltage Swing (Load = 1k ohms
to Vdd/2)
Power = Low
Power = High
0.5 x Vdd
+ 1.0
0.5 x Vdd
+ 1.0
V
V
V
OLOWOB
Low Output Voltage Swing (Load = 1k ohms
to Vdd/2)
Power = Low
Power = High
0.5 x Vdd
- 1.0
0.5 x Vdd
- 1.0
V
V
I
SOB
Supply Current Including Bias Cell (No Load)
Power = Low
Power = High
0.8
2.0
2.0
4.3
mA
mA
PSRR
OB
Supply Voltage Rejection Ratio 60 64 dB
Table 23. DC Switch Mode Pump (SMP) Specifications
Symbol Description Min Typ Max Unit Notes
V
PUMP
5V 5V Output Voltage 4.75 5.0 5.25 V Configuration of footnote.
[5]
Average,
neglecting ripple. SMP trip voltage is
set to 5.0V.
V
PUMP
3V 3V Output Voltage 3.00 3.25 3.60 V Configuration of footnote.
[5]
Average,
neglecting ripple. SMP trip voltage is
set to 3.25V.
I
PUMP
Available Output Current
V
BAT
= 1.5V, V
PUMP
= 3.25V
V
BAT
= 1.8V, V
PUMP
= 5.0V
8
5
mA
mA
Configuration of footnote.
[5]
SMP trip voltage is set to 3.25V.
SMP trip voltage is set to 5.0V.
V
BAT
5V Input Voltage Range from Battery 1.8 5.0 V Configuration of footnote.
[5]
SMP trip
voltage is set to 5.0V.
V
BAT
3V Input Voltage Range from Battery 1.0 3.3 V Configuration of footnote.
[5]
SMP trip
voltage is set to 3.25V.
V
BATSTART
Minimum Input Voltage from Battery to
Start Pump
1.1 V Configuration of footnote.
[5]
ΔV
PUMP_Line
Line Regulation (over V
BAT
range) 5 %V
O
Configuration of footnote.
[5]
V
O
is the
“Vdd Value for PUMP Trip” specified
by the VM[2:0] setting in the DC POR
and LVD Specification, Table 29 on
page 30.
Note
5. L
1
= 2 mH inductor, C
1
= 10 mF capacitor, D
1
= Schottky diode. See Figure 11.
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