4

Specifications CA1524, CA2524, CA3524

Output Voltage

0.5

-

3.8

0.5

-

3.8

V

Amplifier Pole

-

250

-

-

250

-

Hz

Pin 9 Shutdown Current

External Sink

-

200

-

-

200

-

µA

COMPARATOR SECTION

Duty Cycle

% Each Output On

0

-

45

0

-

45

%

Input Threshold

Zero Duty Cycle

-

1

-

-

1

-

V

Input Threshold

Max. Duty Cycle

-

3.5

-

-

3.5

-

V

Input Bias Current

-

1

-

-

1

-

µA

CURRENT LIMITING SECTION

Sense Voltage for 25% Output Duty

Cycle

Terminal 9 = 2V with Error

Amplifier Set for Max Out,

190

200

210

180

200

220

mV

Sense Voltage T.C.

-

0.2

-

-

0.2

-

Common Mode Voltage

-1

-

+1

-1

-

+1

V

Rolloff Pole of R51 C3 + Q64

-

300

-

-

300

-

Hz

OUTPUT SECTION (EACH OUTUT)

Collector-Emitter Voltage

40

-

-

40

-

-

V

Collector Leakage Current

-

0.1

50

-

0.1

50

µA

Saturation Voltage

-

0.8

2

-

0.8

2

V

Emitter Output Voltage

V+ = 20V

17

18

-

17

18

-

V

Rise Time

-

0.2

-

-

0.2

-

µs

Fall Time

-

0.1

-

-

0.1

-

µs

V+ = 40V

-

4

10

-

4

10

mA

NOTES:

1. Ramp voltage at Pin 7

where

t = OSC period in microseconds

t

≅ R

Output frequency at each output transistor is half OSC frequency when each output is used separately and is equal to the OSC frequency

when each output is connected in parallel.

2. Excluding oscillator charging current, error and current limit dividers, and with outputs open.

Electrical Specifications

f = 20kHz, Unless Otherwise Stated. (Continued)

PARAMETER

TEST CONDITIONS

CA1524, CA2524

CA3524

UNITS

MIN

TYP

MAX

MIN

TYP

MAX

High

Low

t