CY8C21234_12 Datasheet, PDF (22/50 Pages) Cypress Semiconductor – PSoC® Programmable System-on-Chip™

CY8C21634, CY8C21534, CY8C21434
CY8C21334, CY8C21234
DC Switch Mode Pump Specifications
Table 11 lists the guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75 V to 5.25 V and
–40 °C  T_A  85 C, 3.0 V to 3.6 V and –40 °C  T_A  85 °C, or 2.4 V to 3.0 V and –40 °C  T_A  85 °C, respectively. Typical parameters
are measured at 5 V, 3.3 V, or 2.7 V at 25 °C and are for design guidance only.
Figure 12. Basic Switch Mode Pump Circuit
D1
+ _{V BA T}
L₁
Battery
Vdd
V _{P UMP}
SMP
PSoC
C1
Vss
Table 11. DC Switch Mode Pump (SMP) Specifications
Symbol
V_PUMP5V
Description
5 V output voltage from pump
Min Typ
4.75 5.0
V_PUMP3V
3.3 V output voltage from pump
3.00 3.25
V_PUMP2V
2.6 V output voltage from pump
2.45 2.55
I_PUMP
V_BAT5V
Available output current
VVV_BBBAAATTT
=
=
=
1.8
1.5
1.3
V,
V,
V,
VVV_PPPUUUMMMPPP
=
=
=
5.0 V
3.25 V
2.55 V
Input voltage range from battery
5
–
8
–
8
–
1.8
–
V_BAT3V
Input voltage range from battery
1.0
–
V_BAT2V
Input voltage range from battery
1.0
–
V_BATSTART
Minimum input voltage from battery to start pump 1.2
–
V_{PUMP_Line} Line regulation (over Vi range)
–
5
V_{PUMP_Load} Load regulation
–
5
V_{PUMP_Ripple} Output voltage ripple (depends on cap/load)
E₃
Efficiency
–
100
35
50
Note
9. L₁ = 2 mH inductor, C₁ = 10 mF capacitor, D₁ = Schottky diode. See Figure 12 on page 22.
Max Units
Notes
5.25
V Configured as in Note 9
Average, neglecting ripple
SMP trip voltage is set to 5.0 V
3.60
V Configured as in Note 9
Average, neglecting ripple.
SMP trip voltage is set to 3.25 V
2.80
V Configured as in Note 9
Average, neglecting ripple.
SMP trip voltage is set to 2.55 V
Configured as in Note 9
–
mA SMP trip voltage is set to 5.0 V
–
mA SMP trip voltage is set to 3.25 V
–
mA SMP trip voltage is set to 2.55 V
5.0
V Configured as in Note 9
SMP trip voltage is set to 5.0 V
3.3
V Configured as in Note 9
SMP trip voltage is set to 3.25 V
2.8
V Configured as in Note 9
SMP trip voltage is set to 2.55 V
–
V Configured as in Note 9
0 C
T_A =
–^4T0^A°^C100.
1.25
V
at
–
%V_O
Configured as in Note 9
sVp^Oeicsiftiheed“bVy^Dt^DhVeaVluMe[2fo:0r ]PsUeMttiPngTrinip”
the DC POR and LVD Specification,
Table 13 on page 23
–
%V_O
Configured as in Note 9
sVp^Oeicsiftiheed“bVy^Dt^DhVeaVluMe[2fo:0r ]PsUeMttiPngTrinip”
the DC POR and LVD Specification,
Table 13 on page 23
–
mVpp Configured as in Note 9
Load is 5 mA
–
% Configured as in Note 9
Load is 5 mA. SMP trip voltage is set
to 3.25 V
Document Number: 38-12025 Rev. *Y
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