Philips Semiconductors

Product specification

NE/SE5560

Switched-mode power supply control circuit

1994 Aug 31

5

MAXIMUM PIN VOLTAGES

NE5560

Pin No

Function

Maximum Voltage

1

See Note 1

2

Do not force (8.4V)

3

Feedback

4

Gain

5

Modulator

6

Duty Cycle Control

7

Current force mode

8

9

External Sync

10

Remote On/Off

11

Current Limiting

12

GND

GND

13

Demagnetization/Overvoltage

14

Output (Emit)

15

Output (Collector)

16

Feed-forward

NOTES:

1. When voltage-forced, maximum is 18V; when current-fed, maximum is 30mA. See voltage-/current-fed supply characteristic curve.

TYPICAL PERFORMANCE CHARACTERISTICS

60

50

40

30

20

10

0

1k

10k

100k

1M

10M

FREQUENCY (Hz)

Open-Loop Gain

0

–30

–60

–90

–120

–150

–180

1k

10k

100k

1M

10M

FREQUENCY (Hz)

Open-Loop Phase

Error Amplifier

SL00362

Figure 3. Typical Performance Characteristics