CAT660ELA datasheet(3/16 Pages) CATALYST

Part #	CAT660ELA

Description	100mA CMOS Charge Pump Inverter/Doubler

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Manufacturer	CATALYST [Catalyst Semiconductor]

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CAT660

3

Doc. No. MD-5000, Rev. W

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 (TA = 70

°C)

Plastic DIP ................................................ 730mW

SOIC ......................................................... 500mW

TDFN ............................................................... 1W

Operating Ambient Temperature Range

CAT660E .............. -40

°C to 85°C

Storage Temperature ......................... -65

°C to 160°C

Lead Soldering Temperature (10 sec) ............. 300

°C

Note: TA = 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

Min

Typ

Max

Units

Inverter: LV = Open. RL = 1k

Ω

3.0

5.5

V

Supply Voltage

VS

Inverter: LV = GND. RL = 1k

Ω

1.5

5.5

Doubler: LV = OUT. RL = 1k

Ω

2.5

5.5

Supply Current

IS

BOOST/FC = open, LV = Open

0.09

0.5

mA

BOOST/FC = V+ , LV = Open

0.3

3

Output Current

IOUT

OUT is more negative than -4V

100

mA

Output Resistance

RO

IL = 100mA, C1 = C2 = 150

µF (Note 2)

4

7

BOOST/FC = V+ (C1, C2 ESR

≤ 0.5Ω)

Ω

IL = 100mA, C1 = C2 = 10

µF12

Oscillator Frequency FOSC

BOOST/FC = Open

5

10

kHz

(Note 3)

BOOST/FC = V+

40

80

OSC Input Current

IOSC

BOOST/FC = Open

±1

µA

BOOST/FC = V+

±5

Power Efficiency

PE

RL = 1k

Ω connected between V+ and

96

98

%

OUT, TA = 25

°C (Doubler)

RL = 500

Ω connected between GND and

92

96

OUT, TA = 25

°C (Inverter)

IL = 100mA to GND, TA = 25

°C (Inverter)

88

Voltage Conversion

VEFF

No load, TA = 25

°C

99

99.9

%

Efficiency

Note 1. In Figure 1, test circuit capacitors C1 and C2 are 150

µF and have 0.2Ω maximum ESR. Higher ESR levels may reduce efficiency and output

voltage.

Note 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

Ω.

Note 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.

ELECTRICAL CHARACTERISTICS

V+ = 5V, C1 = C2 = 150

µF, Boost/FC = Open, COSC = 0pF, inverter mode with test circuit as shown in Figure 1 unless

otherwise noted. Temperature is over operating ambient temperature range unless otherwise noted.

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