IP1525AJ-883B Просмотр технического описания (PDF) - Semelab - > TT Electronics plc
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IP1525AJ-883B Datasheet PDF : 6 Pages
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SEME
LAB
IP1525A SERIES
IP1527A SERIES
APPLICATIONS INFORMATION
+ VS U P PL Y
RETURN
Q1
R1
TO OUTPUT FILTER
R2
13
+ VC
A
11
IP1525A
B
GND
14
12
+ VS U P P L Y
R1
13
C1
+ VC
A
11
R2
IP1525A
C2
B
GND
14
R3
12
RETURN
T1
Q1
Q2
For single–ended supplies, the driver outputs are grounded.
The VC terminal is switched to ground by the totem–pole
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.
+ VS U P P L Y
R1
13
+ VC
Q1
T1
A
11
IP1525A
Q2
B
GND
14
12
RETURN
+ VS U P PL Y
13
+ VC
A
IP1525A
T1
11
B
GND
14
12
RETURN
Q1
R1
Q2
R2
C1
T2
C2
The low source impedance of the output drivers provides
rapid charging of power FET input capacitance while minimis-
ing external components.
Low power transformers can be driven directly by the
IP1525A. Automatic reset occurs during deadtime when both
ends of the primary winding are switched to ground.
Semelab plc. Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612.
Prelim. 3/95
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