Datasheet IP3526J, IP3526DW, IP3526D, IP1526J-BSS2, IP1526J-883B Datasheet (Semelab Plc)

IP1526 SERIES

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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

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.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

IP1526 SERIES

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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

= 0 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 TJ= 25°C

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

IP1526 IP3526

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 5.1 230 550

15 50

4.85 5.0 5.15 25 80 140

0.2 0.4

2.4 4.8

±3 ±8

0.5 1 710

100

400

3 3.5 1

210

–350 –2000

35 200

60 72

3.6 4.2

0.2 0.4

70 94 66 80

4.95 5.0 5.05 220 530

15 50

4.9 5.0 5.1 25 80 140

0.2 0.4

2.4 4.8

±3 ±8

0.5 1 310

100

400

3 3.5

0.5 1

25

–350 –1000

35 100

64 72

3.6 4.2

0.2 0.4

70 94 66 80

V

mV

V

mA

V

%

Hz

kHz

V

mV

nA

dB

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 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 Condition: V

CM

= 0 to 5.2V

IP1526 SERIES

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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

IP1526 IP3526

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

0

45 49

2.4 4.0

0.2 0.4 –125 –300 –225 –500

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

18 30

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

18 30

%

V

µA

mV

µA

V

µA

V

µA

µs

mA

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

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

IP1526 SERIES

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14

A

B

IP1526

+V

C

GND

15

13

16

75Ω

RETURN

T1

Q1

Q2

+15V

APPLICATIONS INFORMATION

14

A

B

IP1526

+V

C

GND

15

13

16

+V

SUPPLY

R1

RETURN

R2 C2

R3

C1

Q1

Q2

T1

14

A

B

IP1526

+V

C

GND

15

13

16

+V

SUPPLY

R1

RETURN

R2 C2

R3

C1

Q1

Q2

T1

Push–Pull Configuration

Driving N–Channel Power MOSFETs

Single–Ended Configuration

IP1526 SERIES

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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