UC1620

Supply Voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . .. . . . 40V
Output Current, Source or Sink
Non-Repetitive (t = 100msec), lo . . . . . . . . . . . . . . . .  . . . 3A
Repetitive (80% on - 20% off; tON = 10ms) . . . . . . . . . . 2.5A
DC Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2A
Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +Vcc
Logic Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . .. . -0.3 to +Vcc
Total Power Dissipation (at TCASE = 75° C)
for SP Package (Note 2). . . . . . . . . . . . . . . . . . . . . . . . . 15W
Storage Temperature . . . . . . . . . . . . . .  . . . -65 to +150
Operating Junction Temperature . . . . . . . . .  -55 to +150
Note 1: All voltages are with respect to ground. Currents are positive into, negative out of the specified terminal.
Note 2: Consult Packaging Section of Databook for thermal limitations and considerations of package.

The UC3620 is a brushless DC motor driver capable of decoding and driving all 3 windings of a 3-phase brushless DC motor. In addition, an on-board current comparator, oscillator, and high gain Op-Amp provide all necessary circuitry for implementing a high performance, chopped mode servo amplifier. Full protection, including thermal shutdown, pulse-by-pulse current limiting, and under-voltage lockout aid in the simple implementation of reliable designs. Both conducted and radiated EMI have been greatly reduced by limiting the output dv/dt to 150V/ms for any load condition.

The UC1620SP is characterized for operation over the full military temperature range of -55°C to +125°C, while the UC3620SP is characterized for 0°C to +70°C.