User's Manual

115
SCHEMATIC DIAGRAM NOTES
1. ALL RESISTORS ARE IN OHMS, ± 5%, 1/4W, UNLESS OTHERWISE INDICATED.
2.
ALL CAPACITORS ARE IN MICROFARADS, UNLESS OTHERWISE INDICATED.
3.
WHITE SILKSCREENED DOTS ON P. C. BOARDS INDICATE ONE OF THE FOLLOWING.
A.
PIN 1 OF AN I. C. (EXCEPT FOR U18 SEE NOTE 4 ).
B.
POSITIVE END OF A POLARIZED CAPACITOR.
C.
CATHODE OF A DIODE OR THE EMITTER OF A TRANSISTOR.
4.
PIN LOCATIONS FOR SEMICONDUCTORS ARE SHOWN BELOW:
5. ON VOLTAGE REGULATOR DEVICES:
REF SUPPLY BIAS FOR REGULATORS INTERNAL REFERENCE.
REF = OUTPUT FROM REGULATORS INTERNAL REFERENCE.
BOOST OUTPUT = CONTROL FOR EXTERNAL PASS TRANSISTOR.
CS = CURRENT SENSE.
CL = CURRENT LIMIT.
INV = INVERTING INPUT TO REGULATORS ERROR AMPLIFIER.
NI = NON-INVERTING INPUT TO REGULATORS ERROR AMPLIFIER.
COMP = FREQUENCY COMPENSATION.