CAT661 Datasheet, PDF (3/16 Pages) Catalyst Semiconductor – High Frequency 100mA CMOS Charge Pump, Inverter/Doubler

CAT661
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)
Storage Temperature ......................... -65°C to 160°C
Lead Soldering Temperature (10 sec) ............. 300°C
ESD Rating-Human Body Model ..................... 2000V
Note: TA = Ambient Temperature
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 (TA = 70°C)
Plastic DIP ................................................ 730mW
SO ............................................................ 500mW
TDFN ............................................................... 1W
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.
Operating Ambient Temperature Ranges
CAT661E .............. -40°C to 85°C
ELECTRICAL CHARACTERISTICS
V+ = 5V, C1 = C2 = 100µF, 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.
Parameter
Symbol
Supply Voltage
VS
Supply Current
IS
Output Current
Output Resistance
IOUT
RO
Oscillator Frequency FOSC
(Note 3)
OSC Input Current IOSC
Power Efficiency
PE
Voltage Conversion VEFF
Efficiency
Conditions
Inverter: LV = Open. R_L = 1kΩ
Inverter: LV = GND. R_L = 1kΩ
Doubler: LV = OUT. R_L = 1kΩ
BOOST/FC = open, LV = Open
BOOST/FC = V+ , LV = Open
OUT is more negative than -4V
C1 = C2 = 10µF,
BOOST/FC = V+ (C1, C2 ESR ≤ 0.5Ω)
C1 = C2 = 100µF (Note 2)
BOOST/FC = Open
BOOST/FC = V+
BOOST/FC = Open
BOOST/FC = V+
R_L = 1kΩ connected between V+ and
OUT, T_A = 25°C (Doubler)
R_L = 500Ω 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
Min. Typ Max. Units
3.0
5.5
V
1.5
5.5
2.5
5.5
0.2 0.5 mA
1
3
100
mA
3.5
10
Ω
3.5
10 25
80 135
±2
±10
96 98
10
kHz
µA
%
92 96
88
99 99.9
%
1. In Figure 1, test circuit electrolytic capacitors C1 and C2 are 100µF and have 0.2Ω 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 0.2Ω.
3. FOSC is tested with COSC = 100pF to minimize test fixture loading. The test is correlated back to COSC=0pF to simulate the capacitance at
OSC when the device is inserted into a test socket without an external COSC.
3
Doc. No. 5003, Rev. J