Sharp FO-5700, Руководство по обслуживанию, Страница: 61 / 140

FO-5700U
5 – 17
Pin name Pin No. Pin Description
VBB 1, 14 Output stage power-supply voltage
SENSE1 2 Set current detection pins.
SENSE2 13 Connect these pins, fed back through noise filters, to E1, and E2.
E1 3 Current control pins by connecting between this pin and GND.
E2 12
DGND 4,11 Internal diode anode connection
OUT1B 6
OUT1A 7 Output pins
OUT2B 8
OUT2A 9
GND 15 Ground
RC1 27 Used to set the output off time for the switched output signals.
RC2 16 The fixed off times are set by the capacitors and resistors connected to these pins. t off CR
Vref1 26 Output current settings
Vref2 17 The output current is determined by the voltage (in the range 1.5 to 7.5V) input to these pins.
PHASE1 25 Output phase switching inputs.
PHASE2 18 [H] input : OUT A = high, OUT B = low
[L] input : OUT A = low, OUT B = high
ENABLE1 24 Output on/off settings
ENABLE2 19 [H] input : output OFF
[L] input : output ON
I01, I11 22, 23 Digital inputs that set the output current
I02, I12 21, 20 The output currents can be set to 1/3, 2/3, or full by setting these pins to appropriate combinations of high and low levels.
VCC 28 Logic block power supply.
[Pin Functions]