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CY8C21234-24SXI 参数 Datasheet PDF下载

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型号: CY8C21234-24SXI
PDF下载: 下载PDF文件 查看货源
内容描述: 的PSoC ™混合信号阵列 [PSoC㈢ Mixed-Signal Array]
分类和应用:
文件页数/大小: 42 页 / 564 K
品牌: CYPRESS [ CYPRESS ]
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CY8C21x34 Final Data Sheet  
3. Electrical Specifications  
3.3.5  
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 TA 85°C, 3.0V to 3.6V and -40°C TA 85°C, or 2.4V to 3.0V and -40°C TA 85°C, respectively. Typical parameters  
apply to 5V, 3.3V, or 2.7V at 25°C and are for design guidance only.  
Table 3-11. DC Switch Mode Pump (SMP) Specifications  
Symbol  
Description  
Min  
4.75  
Typ  
5.0  
Max  
5.25  
Units  
Notes  
a
V
V
V
I
5V Output Voltage from Pump  
V
V
V
Configuration of footnote. Average, neglecting  
PUMP5V  
ripple. SMP trip voltage is set to 5.0V.  
a
3.3V Output Voltage from Pump  
2.6V Output Voltage from Pump  
Available Output Current  
3.00  
2.45  
3.25  
2.55  
3.60  
2.80  
Configuration of footnote. Average, neglecting  
PUMP3V  
PUMP2V  
ripple. SMP trip voltage is set to 3.25V.  
a
Configuration of footnote. Average, neglecting  
ripple. SMP trip voltage is set to 2.55V.  
a
Configuration of footnote.  
PUMP  
V
V
V
= 1.8V, V  
= 1.5V, V  
= 1.3V, V  
= 5.0V  
5
8
8
mA  
mA  
mA  
SMP trip voltage is set to 5.0V.  
SMP trip voltage is set to 3.25V.  
SMP trip voltage is set to 2.55V.  
BAT  
BAT  
BAT  
PUMP  
PUMP  
PUMP  
= 3.25V  
= 2.55V  
a
V
Input Voltage Range from Battery  
Input Voltage Range from Battery  
Input Voltage Range from Battery  
Minimum Input Voltage from Battery to Start Pump  
Line Regulation (over Vi range)  
1.8  
1.0  
1.0  
1.2  
5
5.0  
3.3  
2.8  
V
Configuration of footnote. SMP trip voltage is  
set to 5.0V.  
BAT5V  
a
V
V
V
V
Configuration of footnote. SMP trip voltage is  
BAT3V  
set to 3.25V.  
a
V
Configuration of footnote. SMP trip voltage is  
BAT2V  
set to 2.55V.  
a
o
V
Configuration of footnote. 0 C T 100.  
BATSTART  
A
o
1.25V at T = -40 C.  
A
a
V  
V  
V  
%V  
Configuration of footnote.  
V is the “Vdd Value  
O
PUMP_Line  
PUMP_Load  
PUMP_Ripple  
O
O
for PUMP Trip” specified by the VM[2:0] setting  
in the DC POR and LVD Specification, Table 3-  
13 on page 22.  
a
Load Regulation  
5
%V  
Configuration of footnote.  
V is the “Vdd Value  
O
for PUMP Trip” specified by the VM[2:0] setting  
in the DC POR and LVD Specification, Table 3-  
13 on page 22.  
a
Output Voltage Ripple (depends on cap/load)  
Efficiency  
100  
50  
mVpp  
%
Configuration of footnote. Load is 5 mA.  
a
E
3
35  
Configuration of footnote. Load is 5 mA. SMP  
trip voltage is set to 3.25V.  
E
2
Efficiency  
35  
80  
%
For I load = 1mA, V  
= 2.55V, V  
= 1.3V,  
PUMP  
BAT  
10 uH inductor, 1 uF capacitor, and Schottky  
diode.  
F
Switching Frequency  
Switching Duty Cycle  
1.3  
50  
MHz  
%
PUMP  
DC  
PUMP  
a. L1 = 2 µH inductor, C1 = 10 µF capacitor, D1 = Schottky diode. See Figure 3-2.  
Figure 3-2. Basic Switch Mode Pump Circuit  
D1  
Vdd  
VPUMP  
L1  
SMP  
Vss  
+
C1  
VBAT  
Battery  
PSoC  
January 12, 2007  
Document No. 38-12025 Rev. *K  
21  
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