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

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

Output Voltage
Line Regulation
Load Regulation
Temperature Stability
Total Output Voltage Range
Short Circuit Current

RESET Output Voltage

Initial Accuracy
Voltage Stability
Temperature Stability
Minimum Frequency
Maximum Frequency
Sawtooth Peak Voltage
Sawtooth Valley Voltage

Input Offset Voltage
Input Bias Current
Input Offset Current
DC Open Loop Gain

High Output Voltage

Low Output Voltage

Common Mode Rejection
Supply Voltage Rejection

T

J

= 25°C

V

IN

= 8 to 35V

I

L

= –5 to 20mA

V

REF

= 0

V

REF

= 3.8V

V

REF

= 4.8V

T

J

= 25°C

V

IN

= 8 to 35V

R

T

= 150kΩ CT= 0.2µF

R

T

= 2kΩ CT= 470pF

V

IN

= 35V

V

IN

= 8V

R

S

≤ 2kΩ

R

L

≥ 10MΩ

V

PIN1

– V

PIN2

≥ 150mV

I

SOURCE

= 100µA

V

PIN1

– V

PIN2

≥ 150mV

I

SINK

= 100µA

R

S

≤ 2kΩ

V

IN

= 12V to 18V

LAB

SEME

IP1526A SERIES

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

Prelim. 6/95

IP1526A IP3526A

Parameter Test Conditions Min. Typ. Max. Min. Typ. Max. Units

ELECTRICAL CHARACTERISTICS (T

J

= Over Operating Temperature Range unless otherwise stated)

4.9 5.0 5.1
215
520

15 50

4.85 5.0 5.15
30 80 140

0.2 0.4

2.4 4.8

±3 ±8

0.5 1
16

100

400 700

3 3.5

0.3 1

210

–350 –2000

35 200

60 72

3.6 4.2

0.2 0.4

70 94
66 80

4.95 5.0 5.05
210
510

15 50

4.9 5.0 5.1
30 80 140

0.2 0.4

2.4 4.8

±3 ±8

0.5 1
13

100

400 700

3 3.5

0.3 1

25

–350 –1000

35 100

64 72

3.6 4.2

0.2 0.4

70 94
66 80

V

mV

mV

V

mA

V

%

Hz

kHz

V

mV

nA

dB

V

V

dB

REFERENCE SECTION

OSCILLATOR SECTION

2

UNDERVOLTAGE LOCKOUT

ERROR AMPLIFIER SECTION

3

NOTES

1. Test Conditions unless otherwise stated:
V

IN

= 15V

T

J

= –55 to +125°C for IP1526A

T

J

= 0 to +70°C for IP3526A

2. Oscillator / PWM Section Test Conditions:
f

OSC

= 40kHz

(R

T

= 4.12kΩ ±1% , CT= 0.01µF ±1%, RD= 0)

3. Error Amplifier Section Test Condition:
V

CM

= 0 to 5.2V

V

PIN2

– V

PIN1

≥ 150mV

V

PIN1

– V

PIN2

≥ 150mV

I

SOURCE

= 40µA

I

SINK

= 3.6mA

V

IH

= 2.4V

V

IL

= 0.4V

R

S

≤ 50Ω

RESET = 0.4V
RESET = 2.4V

I

SOURCE

= 20mA

I

SOURCE

= 100mA

I

SINK

= 20mA

I

SINK

= 100mA

V

C

= 40V

C

L

= 1000pF

C

L

= 1000pF

V

IN

= 35V RT= 4.12kΩ

SHUTDOWN = 0.4V

Minimum Duty Cycle
Maximum Duty Cycle

HIGH Output Voltage
LOW Output Voltage
HIGH Input Current
LOW Input Current

Sense Voltage
Input Bias Current

Error Clamp Voltage
C

S

Charging Current

HIGH Output Voltage

LOW Output Voltage

Collector Leakage
Rise Time
Fall Time

Standby Current

IP1526A IP3526A

Parameter Test Conditions Min. Typ. Max. Min. Typ. Max. Units

0

45 49

2.4 4.0

0.2 0.4

-125 -200

-225 -360

80 100 120

-3 -10

0.1 0.4

50 100 150

12.5 13.5
12 13

0.2 0.3

1.2 2.0
50 150

0.3 0.6

0.1 0.2

14 20

0

45 49

2.4 4.0

0.2 0.4

-125 -200

-225 -360

90 100 110

-3 -10

0.1 0.4

50 100 150

12.5 13.5
12 13

0.2 0.3

1.2 2.0
50 150

0.3 0.6

0.1 0.2

14 20

%

V

µA

mV

µA

V

µA

V

V

µA

µs

mA

LAB

SEME

IP1526A SERIES

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

Prelim. 6/95

NOTES

1. Test Conditions unless otherwise stated:
V

IN

= 15V

T

J

= –55 to +125°C for IP1526

T

J

= 0 to +70°C for IP3526

2. Oscillator / PWM Section Test Conditions:
f

OSC

= 40kHz

(R

T

= 4.12kΩ , CT= 0.01µF ±1%, RD= 0)

3. Error Amplifier Section Test Conditions:
V

CM

= 0 to 5.2V

4. Current Limit Comparator Section Test Conditions:
V

CM

= 0 to 12V

5. Output Driver Section Test Conditions:
V

C

= 15V unless otherwise stated.

ELECTRICAL CHARACTERISTICS (T

J

= Over Operating Temperature Range unless otherwise stated)

PWM COMPARATOR

2

DIGITAL PORTS (SYNC, SHUTDOWN & RESET)

CURRENT LIMIT COMPARATOR

4

SOFT–START SECTION

OUTPUT DRIVERS (each output)

5

POWER CONSUMPTION

14

A

B

IP1526A

+V

C

GND

15

13

16

75Ω

RETURN

T1

Q1

Q2

+15V

LAB

SEME

IP1526A SERIES

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

Prelim. 6/95

APPLICATIONS INFORMATION

14

A

B

IP1526A

+V

C

GND

15

13

16

+V

SUPPLY

R1

RETURN

R2
C2

R3

C1

Q1

Q2

T1

TO OUTPUT FILTER

14

R2

A

B

IP1526A

+V

C

GND

15

R1

13

16

+V

SUPPLY

RETURN

Q1

Push–Pull Configuration

Driving N–Channel Power MOSFETs

Single–Ended Configuration

LAB

SEME

IP1526A SERIES

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

Prelim. 6/95

TYPICAL PERFORMANCE CHARACTERISTICS

Soft Start Time vs C

S

Output Driver Saturation Voltage

Output Driver Deadtime vs RDValue

Oscillator Period vs R

T

and C

T