CY8C21634B Datasheet, PDF (22/47 Pages) Cypress Semiconductor – PSoC Programmable System-on-Chip Low power at high speed

CY8C21634B, CY8C21534B, CY8C21434B
CY8C21334B, CY8C21234B
DC Switch Mode Pump Specifications
Table 16 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_BAT
L₁
Battery
Vdd
V _{P UMP}
SMP
C1
PSoC
Vss
Table 16. DC Switch Mode Pump (SMP) Specifications
Symbol
V_PUMP5V
Description
5 V output voltage from pump
Min
4.75
V_PUMP3V
3.3 V output voltage from pump
3.00
V_PUMP2V
2.6 V output voltage from pump
2.45
I_PUMP
V_BAT5V
V_BAT3V
V_BAT2V
V_BATSTART
Available output current
V_BAT = 1.8 V, V_PUMP = 5.0 V
5
V_BAT = 1.5 V, V_PUMP = 3.25 V
8
V_BAT = 1.3 V, V_PUMP = 2.55 V
8
Input voltage range from battery
1.8
Input voltage range from battery
1.0
Input voltage range from battery
1.0
Minimum input voltage from battery to start pump 1.2
ΔV_{PUMP_Line} Line regulation (over Vi range)
–
ΔV_{PUMP_Load} Load regulation
–
Typ
5.0
3.25
2.55
–
–
–
–
–
–
–
5
5
Max
5.25
3.60
2.80
–
–
–
5.0
3.3
2.8
–
–
–
Units
V
V
V
mA
mA
mA
V
V
V
V
%V_O
%V_O
Notes
Configured as in Note 9
Average, neglecting ripple
SMP trip voltage is set to 5.0 V
Configured as in Note 9
Average, neglecting ripple.
SMP trip voltage is set to 3.25 V
Configured as in Note 9
Average, neglecting ripple.
SMP trip voltage is set to 2.55 V
Configured as in Note 9
SMP trip voltage is set to 5.0 V
SMP trip voltage is set to 3.25 V
SMP trip voltage is set to 2.55 V
Configured as in Note 9
SMP trip voltage is set to 5.0 V
Configured as in Note 9
SMP trip voltage is set to 3.25 V
Configured as in Note 9
SMP trip voltage is set to 2.55 V
Configured as in Note 9
0 °C ≤ T_A ≤ 100. 1.25 V at
T_A = –40 °C
Configured as in Note 9
V_O is the “V_DD Value for PUMP Trip”
specified by the VM[2:0] setting in
the DC POR and LVD Specification,
Table 18 on page 23
Configured as in Note 9
V_O is the “V_DD Value for PUMP Trip”
specified by the VM[2:0] setting in
the DC POR and LVD Specification,
Table 18 on page 23
Note
9. L₁ = 2 mH inductor, C₁ = 10 mF capacitor, D₁ = Schottky diode. See Figure 12.
Document Number: 001-67345 Rev. *A
Page 22 of 47
[+] Feedback