Semelab Plc IP3526J, IP3526DW, IP3526D, IP1526J-BSS2, IP1526J-883B Datasheet
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IP1526 SERIES
4/99
Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: sales@semelab
.co.uk Website: http://www.semelab.co.uk
Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: sales@semelab
.co.uk Website: http://www.semelab.co.uk
REGULATING
PULSE WIDTH
MODULATOR
FEATURES
• 8 to 35V operation
• 5V reference trimmed to ±1%
• 1Hz to 400kHz oscillator range
• Dual 100mA source/sink outputs
• Digital current limiting
• Double pulse suppression
• Programmable deadtime
• Undervoltage lockout
• Single Pulse metering
• Programmable soft start
• Wide current limit common mode range
• TTL/CMOS compatible logic ports
• Symmetry correction capability
• Guaranteed 6 unit synchronisation
+V
IN
Input Voltage
Collector Supply Voltage
Logic Inputs
Analogue Inputs
Source / Sink Load Current
Reference Load Current
Logic Sink Current
P
D
Power Dissipation TA= 25°C
Derate @ TA> 50°C
P
D
Power Dissipation TC= 25°C
Derate @ TC> 25°C
T
J
Operating Junction Temperature
T
STG
Storage Temperature Range
T
L
Lead Temperature (soldering, 10 seconds)
+40V
+40V
–0.3 to +5.5V
–0.3 to +V
IN
200mA
Internally Limited
15mA
1W
10mW/°C
3W
24mW/°C
See Ordering Information
–65 to +150°C
+300°C
ABSOLUTE MAXIMUM RATINGS (T
case
= 25°C unless otherwise stated)
TOP VIEW
J Package – 18 Pin Ceramic DIP
N Package – 18 Pin Plastic DIP
DW Package – 18 Pin Plastic (300) SOIC
8
1
2
3
4
5
6
7
14
13
12
11
109
15
16
17
18
V
REF
OUTPUT B
GROUND
OUTPUT A
+ERROR
–ERROR
COMPENSATION
SOFTSTART
C
RESET
+CURRENT SENSE
–CURRENT SENSE
SHUTDOWN
C
TIMING
R
TIMING
R
DEADTIME
+V
IN
COLLECTOR
+V
SYNC
Part J–Pack N–Pack D–18 Temp.
Number 18 Pin 18 Pin 18 Pin Range
IP1526 ✔ -55 to +125°C
IP3526 ✔✔✔0 to +70°C
Order Information
Note:
To order, add the package identifier to the part number.
eg. IP1526J
IP3526DW–18
IP1526 SERIES
4/99
Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: sales@semelab
.co.uk Website: http://www.semelab.co.uk
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
1
2
3
4
5
6
7
14
13
12
11
109
15
16
17
18
V
REF
OUTPUT B
GROUND
OUTPUT A
+ERROR
–ERROR
COMPENSATION
SOFTSTART
C
RESET
+CURRENT SENSE
–CURRENT SENSE
SHUTDOWN
C
TIMING
R
TIMING
R
DEADTIME
+V
IN
COLLECTOR
+V
SYNC
+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
RECOMMENDED OPERATING CONDITIONS
V
IN
Input Voltage
Collector Voltage
Sink/Source Load Current (Each Output)
Reference Load Current
Oscillator Frequency Range
R
T
Oscillator Timing Resistor
C
T
Oscillator Timing Capacitor
Available Deadtime Range @ 40kHz
Operating Ambient Temperature Range IP1526
IP3526
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-star t 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
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