Semelab Plc IP3526AN, IP3526ADW, IP3526AD, IP1526AJ-BSS2, IP1526AJ Datasheet

LAB

SEME

IP1526A SERIES

Semelab plc. Telephone [phone]. Telex: 341927. Fax [phone].

Prelim. 6/95

ADVANCED

REGULATING

PULSE WIDTH

MODULATOR

FEATURES

• Low drain current

• 8 to 35V operation

• High performance 5V ±1% reference

• Low t.c. 1Hz to 400kHz oscillator range

• Dual 100mA source/sink outputs

• Digital current limiting

• Double pulse suppression

• Programmable deadtime

• Accurate current limit sense voltage

• 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 (Each output, continuous)
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
D 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

IP1526A ✔ -55 to +125°C
IP3526A ✔✔✔0 to +70°C

Order Information

Note:

To order, add the package identifier to the part number.
eg. IP1526AJ

IP3526AD–18

LAB

SEME

IP1526A SERIES

Semelab plc. Telephone [phone]. Telex: 341927. Fax [phone].

Prelim. 6/95

Q

T

Q

TOGGLE

F/F

S

QR

MEMORY

F/F

17

15

18

12

D

S

Q

Q

METERING

F/F

5

4

2

1

9

10

T

C

11

3

6

+V

IN

OSCILLATOR

T

R

SYNC

UNDER

VOLTAGE

LOCKOUT

REFERENCE

REGULATOR

GND

TO INTERNAL

CIRCUITRY

REF

V

IN

+V

D

R

SOFT­START

C

RESET

COMPEN-

SATION

+ERROR

–ERROR

7

–C

S

+C

S

SHUTDOWN

8

AMP

OUTPUT

A

OUTPUT

B

13

16

14

+V

C

+8 to +35V

+4.5 to +35V

0 to 100mA

–5 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 IP1526A

IP3526A

DESCRIPTION

The IP1526A series of high performance pulse width modulator circuits is a direct replacement for the IP1526 series in all
applications and features improved performance in several key areas. Functions included are a temperature compensated voltage
reference, sawtooth oscillator, error amplifier, PWM comparator, pulse metering and steering logic, and two low impedance power
drivers. Also included are protective features such as soft-star t, undervoltage lockout, digital current limiting, double pulse inhibit, a
data latch for single pulse metering, adjustable dead-time and provision for symmetry correction inputs. For ease of interface, all digital
control ports are TTL and 9-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