IP1526J-BSS2 Просмотр технического описания (PDF) - Semelab - > TT Electronics plc
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IP1526J-BSS2 Datasheet PDF : 6 Pages
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IP1526 SERIES
DESCRIPTION
The IP1526 and IP3526 high performance monolithic pulse width modulator circuits are designed for fixed-frequency switching
regulators and other power control applications. Included in an 1 8-pin dual-in-line package are a temperature compensated voltage
reference, sawtooth oscillator, error amplifier, pulse width modulator, pulse metering and steering logic, and two low impedance power
drivers. Also included are protective features such as soft-start and under-voltage lockout, digital current limiting, double pulse inhibit, a
data latch for single pulse metering, adjustable deadtime, and provision for symmetry correction inputs. For ease of interface, all digital
control ports are TTL and B-series CMOS compatible. Active LOW logic design allows wired-OR connections for maximum flexibility.
This versatile device can be used to implement single-ended or push-pull switching regulators of either polarity, both transformerless
and transformer coupled.
BLOCK DIAGRAM
+ERROR 1
–ERROR 2
COMPENSATION 3
18 VREF
17 +VIN
16 OUTPUT B
CSOFTSTART 4
RESET 5
–CURRENT SENSE 6
15 GROUND
14 +VCOLLECTOR
13 OUTPUT A
+CURRENT SENSE 7
12 SYNC
SHUTDOWN 8
R TIMING 9
11 R DEADTIME
10 C TIMING
RECOMMENDED OPERATING CONDITIONS
VIN
Input Voltage
Collector Voltage
Sink/Source Load Current (Each Output)
Reference Load Current
Oscillator Frequency Range
RT
Oscillator Timing Resistor
CT
Oscillator Timing Capacitor
Available Deadtime Range @ 40kHz
Operating Ambient Temperature Range
IP1526
IP3526
Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk
+8 to +35V
+4.5 to +35V
0 to 100mA
0 to 20mA
1Hz to 400kHz
2kΩ to 150kΩ
470pF to 20µF
3% to 50%
–55 to +125°C
0 to +70°C
4/99
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