L6206PD

The L6206PD is one member of the L6206 series.The L6206 is a DMOS Dual Full Bridge designed for motor control applications, realized in MultiPower-BCD technology, which combines isolated DMOS Power Transistors with CMOS and bipolar circuits on the same chip. Available in PowerDIP24 (20+2+2),PowerSO36 and SO24 (20+2+2) packages, the L6206 features thermal shutdown and a non-dissipative overcurrent detection on the high side Power MOSFETs plus a diagnostic output that can be easily used to implement the overcurrent protection.

Features of the L6206PD are:(1)operating supply voltage from 8 TO 52V; (2)5.6A output peak current (2.8A DC); (3)operating frequency up TO 100KHz; (4)programmable high side overcurrent detection and protection; (5)diagnostic output; (6)paralleled operation; (7)cross conduction protection; (8)thermal shutdown; (9)under voltage lockout; (10)integrated fast free wheeling diodes.In addition to the PWM current control, an overcurrent detection circuit (OCD) is integrated. This circuit can be used to provides protection against a short circuit to ground or between two phases of the bridge as well as a roughly regulation of the load current. With this internal over current detection, the external current sense resistor normally used and its associated power dissipation are eliminated.

The absolute maximum ratings of the L6206PD can be summarized as:(1)supply voltage:60V;(2)OCD pins voltage range:-0.3 to 10V;(3)PROGCL pins voltage range:-0.3 to +7 V;(4)operating temperature:-40 to 150;(5)storage temperature:-40 to 150;(6)RMS supply current:2.8A;(7)input and enable voltage range:-0.3 to +7 V.The outputs of the L6206 can be paralleled to increase the output current capability or reduce the power dissipation in the device at a given current level. It must be noted, however, that the internal wire bond connections from the die to the power or sense pins of the package must carry current in both of the associated half bridges.When the two halves of one full bridge (for example OUT1A and OUT2A) are connected in parallel, the peak current rating is not increased since the total current must still flow through one bond wire on the power supply or sense pin. In addition the over current detection senses the sum of the current in the upper devices of each bridge (A or B) so connecting the two halves of one bridge in parallel does not increase the over current detection threshold.