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.
[+] Feedback