HCTL-1101 Avago Technologies US Inc., HCTL-1101 Datasheet - Page 21

• Manufacturer Part Number: HCTL-1101
• Description: IC MOTION CONTROL GP 40DIP
• Manufacturer: Avago Technologies US Inc.

Specifications of HCTL-1101

• Applications: DC Motor Controller, Stepper Motor Controller
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: -20°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Number Of Outputs: -
• Voltage - Load: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Figure 4. Motor Command Port Output.
When any Control mode is being executed, the unadjust-
ed internal 2’s-complement motor command is written to
R09H. Because of the hardware limit on the linear range
(64H to 9CH, ± 100D), the PWM port saturates sooner
than the 8-bit Motor Command port (00H to FFH, +127D
to –128D). When the internal motor command saturates
above 8 bits, the PWM port is saturated to the full ± 100%
duty cycle level. Figure 5 shows the actual values inside
the PWM port. Note that the Unipolar flag, F2, does not
affect the PWM port.
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For commutation of brushless motors with the PWM port,
only use the Pulse pin from the PWM port as the commu-
tator already contains sign information. (See Figure 9.)
The PWM port has an option that can be used with H-
bridge type amplifiers. The option is Sign Reversal Inhibit,
which inhibits the Pulse output for one PWM period after
a sign polarity reversal. This allows one pair of transistors
to turn off before others are turned on and thereby avoids
a short across the power supply. Bit 0 in the Status register
(R07H) controls the Sign Reversal.