CY7C603xx
Document #: 38-16018 Rev. *D Page 17 of 29
DC Switch Mode Pump Specifications
Tab le 13 lists guaranteed maximum and minimum specifications for the voltage and temperature ranges: 3.0V to 3.6V and
0°C<
T
A
< 70°C, or 2.4V to 3.0V and 0°C < T
A
< 70°C, respectively. Typical parameters apply to 3.3V, or 2.7V at 25°C and are
for design guidance only.
Figure 8. Basic Switch Mode Pump Circuit
Table 13.DC Switch Mode Pump (SMP) Specifications
Parameter Description Min. Typ. Max. Unit Notes
V
PUMP3V
3.3V Output Voltage from Pump 3.00 3.25 3.60 V Configuration of footnote.
[2]
Average, neglecting ripple.
SMP trip voltage is set to 3.25V.
V
PUMP2V
2.6V Output Voltage from Pump 2.45 2.55 2.80 V Configuration of footnote.
[2]
Average, neglecting ripple.
SMP trip voltage is set to 2.55V.
I
PUMP
Available Output Current
V
BAT
= 1.5V, V
PUMP
= 3.25V
V
BAT
= 1.3V, V
PUMP
= 2.55V
8
8
–
–
–
–
mA
mA
Configuration of footnote.
[2]
SMP trip voltage is set to 3.25V.
SMP trip voltage is set to 2.55V.
V
BAT3V
Input Voltage Range from Battery 1.0 – 3.3 V Configuration of footnote.
[2]
SMP trip voltage is set to 3.25V.
V
BAT2V
Input Voltage Range from Battery 1.0 – 2.8 V Configuration of footnote.
[2]
SMP trip voltage is set to 2.55V.
V
BATSTART
Minimum Input Voltage from Battery to
Start Pump
1.2 – – V Configuration of footnote.
[2]
0°C < T
A
< 100. 1.25V at T
A
= –40°C.
'V
PUMP_Line
Line Regulation (over Vi range) – 5 – %V
O
Configuration of footnote.
[2]
V
O
is the “Vdd
Value for PUMP Trip” specified by the
VM[2:0] setting in the DC POR and LVD
Specification, Table 15 on page 18.
'V
PUMP_Load
Load Regulation – 5 – %V
O
Configuration of footnote.
[2]
V
O
is the “Vdd
Value for PUMP Trip” specified by the
VM[2:0] setting in the DC POR and LVD
Specification, Table 15 on page 18.
'V
PUMP_Ripple
Output Voltage Ripple (depends on
cap/load)
– 100 – mVpp Configuration of footnote.
[2]
Load is 5 mA.
E
3
Efficiency 35 50 – % Configuration of footnote.
[2]
Load is 5 mA.
SMP trip voltage is set to 3.25V.
E
2
Efficiency 35 80 – % For I load = 1 mA, V
PUMP
= 2.55V,
V
BAT
= 1.3V, 10 PH inductor, 1 PF
capacitor, and Schottky diode.
F
PUMP
Switching Frequency – 1.3 – MHz
DC
PUMP
Switching Duty Cycle – 50 – %
Note
2. L
1
= 2 PH inductor, C
1
= 10 PF capacitor, D
1
= Schottky diode. See Figure 8.
Battery
C
1
D
1
+
enCoRe III LV
Vdd
Vss
SMP
V
BAT
L
1
V
PUMP
(53 páginas)
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comentários a estes Manuais