Datasheet IP5560N, IP5560J-DESC, IP5560J-883B, IP5560J, IP5560CN Datasheet (Semelab Plc)

IP5560C
IP5560C

Prelim. 4/95

Semelab plc. Telephone [phone]. Fax [phone].

E-mail: sales@semelab

.co.uk Website: http://www.semelab.co.uk

SWITCHED–MODE

POWER SUPPLY

CONTROL CIRCUIT

FEATURES

• STABILISED POWER SUPPLY

• TEMPERATURE COMPENSATED REFERENCE
SOURCE

• SAWTOOTH GENERATOR

• PULSE WIDTH MODULATOR

• REMOTE ON/OFF SWITCHING

• CURRENT LIMITING

• LOW SUPPLY VOLTAGE PROTECTION

• LOOP FAULT PROTECTION

• DEMAGNETISATION/OVERVOLTAGE PROTECTION

• MAXIMUM DUTY CYCLE CLAMP

• FEED FORWARD CONTROL

• EXTERNAL SYNCHRONISATION

SUPPLY

Voltage Sourced
Current Sourced

OUTPUT TRANSISTOR

Output Current
Collector Voltage (Pin 15)
Maximum Emitter Voltage (Pin 14)

T

J

Operating Junction Temperature

T

STG

Storage Temperature Range

18V

30mA

40mA

18V

5V

See Ordering Information

–65 to +150°C

ABSOLUTE MAXIMUM RATINGS (T

case

= 25°C unless otherwise stated)

TOP VIEW

J Package – 16 Pin Ceramic DIP
N Package – 16 Pin Plastic DIP
D Package – 16 Pin Plastic (150) SOIC

8

1

2

3

4

5

6

7

14

13

12

11

10

9

15

16

GND

CC

V

Z

V

FEEDBACK

GAIN

MODULATOR

DUTY CYCLE

CONTROL

C

T

R

T

CURRENT LIMITING

REMOTE ON/OFF

EXTERN AL SYNC

OUTPUT (EMITTER)
DEM AGNETI S ATION /

OVERVOLTAGE

FEED FORW ARD

OUTPUT (COLLECTOR)

Part J–Pack N–Pack D–16 Temp.
Number 16 Pin 16 Pin 16 Pin Range

IP5560 ✔ -55 to +125°C
IP5560C ✔✔✔0 to +70°C

Order Information

Note:

To order, add the package identifier to the part number.
eg. IP5560J

IP5560CD–16

IP5560C
IP5560C

Prelim. 4/95

Semelab plc. Telephone [phone]. Fax [phone].

E-mail: sales@semelab

.co.uk Website: http://www.semelab.co.uk

REFERENCE

VOLTAGE

STABILISED

SUPPLY

100Ω

0.48V

4

3

5

SAWTOOTH

GENERATOR

0.6V

6

0.6V
1kΩ

0.6V

RSSTART

STOP

O1

0.48V

0.6V

LATCH

0.6V

S
R

15

14

FEEDBACK

VOLTAGE

GAIN ADJUST

MODULATOR

INPUT

DUTY CYCLE

CONTROL

CURRENT

LIMITING

11

10

REMOTE

ON/OFF

116

GND

CC

V

2

z

V

Emitter

Collector

OUTPUTS

FEED

FORWARD

T

R

T

C

EXTERNAL

SYNC INPUT

DEMAGNETISATION

OVER-VOLTAGE

PROTECTION

1398716

CC

V

BLOCK DIAGRAM

DESCRIPTION

The IP5560 is a control circuit for use in switched mode power supplies. This single monolithic chip incorporates all the
control and supervisory (protection) functions required in switched mode power supplies, including an internal
temperature compensated reference source, internal reference, sawtooth generator, pulse width modulator, output stage
and various protection circuits.

IP5560C
IP5560C

Prelim. 4/95

Semelab plc. Telephone [phone]. Fax [phone].

E-mail: sales@semelab

.co.uk Website: http://www.semelab.co.uk

Internal Reference Voltage (V

REF

)

Temperature Coefficient of V

REF

Internal Reference (VZ)
Temperature Coefficient of V

Z

Frequency Range
Initial Accuracy Oscillator
Duty Cycle Range

Modulator Input Current

Pin 6 Input Current
Pin 6 Duty Cycle Limit Control
(for 50% Max. Duty Cycle)
Pin 1 Low Supply Voltage
Protection Thresholds
Pin 3 Feedback Loop Protection
Trip Thresholds
Pin 3 Pull Up Current
Pin 13 Demagnetisation / Over­Voltage Protection Threshold

Pin 13 Input Current

Pin 16 Feed Forward Duty Cycle
Control

Pin 16 Feed Forward Input
Current

T

J

= Over Temp. Range

I

L

= –7mA

T

J

= Over Temp. Range
R = 5kΩ
f

O

= 20kHz

Voltage at Pin 5 = 2V
T

J

= Over Temp. Range

At 2V T

J

= Over Temp. Range
f = 15kHz to 50kHz
V

pin6

= 0.4V

Z

At 2V

At 0.25V

T

J

= Over Temp. Range

Voltage at Pin 16 = 2V

Z

At 16V VCC= 18V

3.69 3.72 3.81

3.65 3.85
±100

7.8 8.4 8.8
±200

50 100k

5

0–90 0–98

–0.2 –20

–0.2 –20

40 50 60

8 9 10.5

400 600 720

–7 –15 –35

470 600 720

–0.6 –10

–20

30 40 50

0.2 5

V

ppm/°C

V

ppm/°C

Hz

%

mA

µA

% Duty

Cycle

V

mV

µA

mV

µA

% Orig.

Duty

Cycle

µA

3.57 3.72 3.95

3.53 4.00
±100

7.8 8.4 8.8
±200

50 100k

5

0–90 0–98

–0.2 –20

–0.2 –20

40 50 60

8 9 10.5

400 600 720

–7 –15 –35

470 600 720

–0.6 –10

–20

30 40 50

0.2 5

IP5560 IP5560C

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

ELECTRICAL CHARACTERISTICS (T

J

= 25°C unless otherwise stated)

MODULATOR

SUPERVISORY FUNCTIONS

REFERENCE SECTIONS

OSCILLATOR SECTION

NOTES

1) Test Conditions: VCC= 12V , TJ= 25°C unless otherwise stated

2) Tests marked TJ= Over Temp. Range apply over the full temperature range
ie. T

J

= -55 to +125°C for IP5560

TJ= 0 to +70°C for IP5560C

IP5560C
IP5560C

Prelim. 4/95

Semelab plc. Telephone [phone]. Fax [phone].

E-mail: sales@semelab

.co.uk Website: http://www.semelab.co.uk

IP5560 IP5560C

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

0 0.8
2V

Z

-85 -125

0 0.8
2V

Z

-85 -125

-2 -10

0.7 0.8

560 600 700
400 480 500

6.2 9.5

0.7
54 60
10

3

0.5

40

5

10

15
20 24
20 30

0 0.8
2V

Z

-85 -125

0 0.8
2V

Z

-85 -125

-2 -10

0.7 0.8

560 600 700
400 480 500

6.2 9.5

0.7
54 60
10

3

0.5

40

5

10

15
19 24
20 30

V

µA

V

µA

µA

µs

mV

V

dB
kΩ

MHz

V

mA

V

mA

V

Pin 9 Off
Pin 9 On

Pin 9 Sink Current

Pin 10 Off
Pin 10 On

Pin 10 Sink Current

Pin 11 I

IN

Single Pulse Inhibit Delay

Trip Levels: Shut Down, Slow Start
Trip Levels: Current Limit

Output Voltage Swing (V

OH

)

Output Voltage Swing (V

OL

)
Open Loop Gain
Feedback Resistor
Small Signal Bandwidth

V

CE(sat)

Output Current
Max. Emitter Voltage

Supply Current (I

CC

)

Supply Voltage (V

CC

)

Voltage at Pin 9 = 0V
T

J

= Over Temp. Range

Voltage at Pin 9 = 0V
T

J

= Over Temp. Range

Voltage at Pin 11 = 250mV
Inhibit Delay Time for 20%
Overdrive at 30mA I

OUT

IC= 40mA
(Pin 15)
(Pin 14)

I

Z

= 0 , Voltage Fed , V

PIN6

= 0.5V

R

PIN7

= 25kΩ

T

J

= Over Temp. Range

I

CC

= 10mA , Current Feed

I

CC

= 30mA , Current Feed

ELECTRICAL CHARACTERISTICS (T

J

= 25°C unless otherwise stated)

CURRENT LIMITING

ERROR AMPLIFIER

OUTPUT STAGE

SUPPLY VOLTAGE/CURRENT

EXTERNAL SYNCHRONISATION

REMOTE ON/OFF

NOTES

1) Test Conditions: VCC= 12V , TJ= 25°C unless otherwise stated

2) Tests marked TJ= Over Temp. Range apply over the full temperature range
ie. TJ= -55 to +125°C for IP5560

T

J

= 0 to +70°C for IP5560C

IP5560C
IP5560C

Prelim. 4/95

Semelab plc. Telephone [phone]. Fax [phone].

E-mail: sales@semelab

.co.uk Website: http://www.semelab.co.uk

FREQUENCY (Hz)

-180

-150

-120

-90

-60

-30

0

1k 10k 100k

1M

10M

PHASE ANGLE (˚)

FREQUENCY (Hz)

1k 10k 100k

1M

10M

0

10

20

30

40

50

60

GAIN (dB)

TYPICAL PERFORMANCE CHARACTERISTICS — ERROR AMPLIFIER

Open Loop Phase Open Loop Gain

δ

– DUTY CYCLE (%)

INPUT VOLTAGE (V)

0

10

20

30

40

50

60

70

80

90

100

0123456

V

Pins 4,5

or 6

δ

– ERROR AMP CLOSED LOOP GAIN

1

7

0 102030405060708090

0.1

R

1

R

S

= 20

R

S

= 100

R

1

R

S

= 500

R

1

– REGULATION (%)

V

REF

V

O

(3.72V)

4

R

1

V

REF

R

S

V

O

Transfer Curve of Pulse Width Modulator Duty

Cycle vs Input Voltage

Regulation vs Error Amp

Closed Loop Gain

IP5560C
IP5560C

Prelim. 4/95

Semelab plc. Telephone [phone]. Fax [phone].

E-mail: sales@semelab

.co.uk Website: http://www.semelab.co.uk

TYPICAL PERFORMANCE CHARACTERISTICS — ERROR AMPLIFIER

Power Derating Curve

Voltage / Current Fed

Supply Characteristics

Duty Cycle Sensitivity To

Feed Forward Voltage (Pin 16)

Typical Frequency Plot vs

R

T

and C

T

T AMBIENT TEMPERATURE (˚C)

A

P MAX (W)

D

0.00

0.25

0.50

0.75

1.00

1.25

-50 -25 0 25 50 75 100 125 150

V SUPPLY VOLTAGE (V)

CC

0

10

20

30

0 102030

I SUPPLY CURRENT (mA)

CC

PD=VCCICC+ ( VCC– VZ) I

Z

+ [ ( V

pin15

– V

pin14

) I

pin15

x δ ]

δ – DUTY CYCLE (%)

0

10

20

30

40

50

60

70

80

90

100

1.00 1.50 2.00 2. 50

V

PIN16

/ V

Z

OSCILLATOR FREQUENCY (kHz)

1

10

100

200

TIMING CAPACITANCE (nF)

2.00 2.50 3.00 3.50 4.00 4.50

R

=

5

k

Ω

R

=

1

0

k

Ω

R

=

2

0

k

Ω

R

=

4

0

k

Ω

IP5560C
IP5560C

Prelim. 4/95

Semelab plc. Telephone [phone]. Fax [phone].

E-mail: sales@semelab

.co.uk Website: http://www.semelab.co.uk

0

10

20

30

40

50

60

70

80

11030

δ max = 90%

δ max = 70%

δ max = 50%

δ max = 30%

δ

SOFT START DUTY CYCLE (%)

0

(kΩ)

+

1R2

R

TYPICAL PERFORMANCE CHARACTERISTICS — ERROR AMPLIFIER

Soft Start Min. Duty Cycle vs

R1+ R

2

Current Fed

Dropping Resistor

Graph for Determining δδmax

GND

1

16

VCC

R

S

V

CC

V

0

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

0

10

20

30

40

50

60

70

80

90

100

δ

– MAXIMUM DUTY CYCLE (%)

max

2

R

1R2

R+

12

Z

V

6

2

1

R

2

R

DUTY
CYCLE
CONTROL

VS– V

CC

R

VCC

=

(10 to 20 mA)

See DC Electrical Characteristics For
Current Feed V

CC

Range