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參數(shù)資料
| 型號(hào)： | CAT661EZD8 |
| 英文描述： | High Frequency 100mA CMOS Charge Pump, Inverter/Doubler |
| 中文描述： | 高頻100mA的CMOS電荷泵，逆變器/倍增 |
| 文件頁(yè)數(shù)： | 3/16頁(yè) |
| 文件大小： | 488K |
| 代理商： | CAT661EZD8 |
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CAT661
3
Doc. No. 5003, Rev. J
ABSOLUTE MAXIMUM RATINGS
V+ to GND .............................................................6V
Input Voltage (Pins 1, 6 and 7) ..-0.3V to (V+ + 0.3V)
BOOST/FC and OSC Input Voltage ........... The least
negative of (Out - 0.3V) or (V+ - 6V) to (V+ + 0.3V)
Output Short-circuit Duration to GND .............. 1 sec.
(OUT may be shorted to GND for 1 sec without damage but
shorting OUT to V+ should be avoided.)
Continuous Power Dissipation (T
A
= 70
°
C)
Plastic DIP................................................730mW
SO ............................................................500mW
TDFN...............................................................1W
Operating Ambient Temperature Ranges
CAT661E.............. -40
°
C to 85
°
C
Storage Temperature.........................-65
°
C to 160
°
C
Lead Soldering Temperature (10 sec)............. 300
°
C
ESD Rating-Human Body Model .....................2000V
Note: T
A
= Ambient Temperature
These are stress ratings only and functional operation is not
implied. Exposure to absolute maximum ratings for prolongued
time periods may affect device reliability. All voltages are with
respect to ground.
Parameter
Symbol
Conditions
Inverter: LV = Open. R
L
= 1k
Inverter: LV = GND. R
L
= 1k
Doubler: LV = OUT. R
L
= 1k
BOOST/FC = open, LV = Open
Min.
Typ
Max.
Units
3.0
1.5
2.5
5.5
5.5
5.5
V
Supply Voltage
VS
Supply Current
IS
0.2
0.5
mA
BOOST/FC = V+ , LV = Open
1
3
Output Current
IOUT
OUT is more negative than -4V
C1 = C2 = 10
μ
F,
BOOST/FC = V+ (C1, C2 ESR
≤
0.5
)
C1 = C2 = 100
μ
F (Note 2)
BOOST/FC = Open
BOOST/FC = V+
100
mA
Output Resistance
RO
3.5
10
3.5
10
Oscillator Frequency FOSC
(Note 3)
10
80
25
135
±
2
±
10
98
kHz
OSC Input Current
IOSC
BOOST/FC = Open
BOOST/FC = V+
R
L
= 1k
connected between V+ and
OUT, T
A
= 25
°
C (Doubler)
R
L
= 500
connected between GND and
OUT, T
A
= 25
°
C (Inverter)
I
L
= 100mA to GND, T
A
= 25
°
C (Inverter)
No load, T
A
= 25
°
C
μ
A
Power Efficiency
PE
96
%
92
96
88
Voltage Conversion
Efficiency
VEFF
99
99.9
%
1. In Figure 1, test circuit electrolytic capacitors C1 and C2 are 100
μ
F and have 0.2
maximum ESR. Higher ESR levels may reduce
efficiency and output voltage.
2. The output resistance is a combination of the internal switch resistance and the external capacitor ESR. For maximum voltage and
efficiency keep external capacitor ESR under 0.2
.
3. FOSC is tested with C
OSC
= 100pF to minimize test fixture loading. The test is correlated back to C
OSC
=0pF to simulate the capacitance at
OSC when the device is inserted into a test socket without an external C
OSC
.
ELECTRICAL CHARACTERISTICS
V+ = 5V, C1 = C2 = 100
μ
F, Boost/FC = Open, C
OSC
= 0pF, and Test Circuit is Figure 1 unless otherwise noted.
Temperature is T
A
= T
AMIN
to T
AMAX
unless otherwise noted.
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