13

A

B

IP1525A

GN D

12

11

14

R1

RE TU RN

T1

Q1

Q2

LAB

SEME

IP1525A SERIES

IP1527A SERIES

Prelim. 3/95

APPLICATIONS INFORMATION

TO OU TPU T FIL TER

13

R2

A

B

IP1525A

GND

12

R1

11

14

RE TURN

Q1

13

A

B

IP1525A

GN D

12

11

14

R1

RE TURN

R2

C2

R3

C1

Q1

Q2

T1

13

A

B

IP1525A

GN D

12

Q1

T1

T2

Q2

11

14

R1

R2

RE TU RN

C1

C2

For single–ended supplies, the driver outputs are grounded.

source transistors on alternate oscillator cycle.

In conventional push–pull bipolar designs, forward base drive

is controlled by R1–R3. Rapid turn–off times for the power

devices are achieved with speed–up capacitors C1 and C2.

Low power transfor mers can be driven directly by the

IP1525A. Automatic reset occurs during deadtime when both

ends of the primary winding are switched to ground.

The low source impedance of the output drivers provides

rapid charging of power FET input capacitance while minimis-

ing external components.