NE5560N NXP Semiconductors, NE5560N Datasheet

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NE5560N

Manufacturer Part Number
NE5560N
Description
Manufacturer
NXP Semiconductors
Datasheet
1.NE5560N.pdf (16 pages)

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1. Does not include current for timing resistors or capacitors.
Philips Semiconductors
DESCRIPTION
The NE/SE5560 is a control circuit for use in switched-mode power
supplies. This single monolithic chip incorporates all the control and
housekeeping (protection) functions required in switched-mode
power supplies, including an internal temperature-compensated
reference source, internal Zener references, sawtooth generator,
pulse-width modulator, output stage and various protection circuits.
FEATURES
ORDERING INFORMATION
ABSOLUTE MAXIMUM RATINGS
NOTES:
1994 Aug 31
16-Pin Plastic Dual In-Line Package (DIP)
16-Pin Plastic Small Outline Large (SOL) Package
16-Pin Plastic Dual In-Line Package (DIP)
16-Pin Cerdip Dual In-Line Package (CERDIP)
V
I
I
T
T
CC
OUT
Stabilized power supply
Temperature-compensated reference source
Sawtooth generator
Pulse-width modulator
Remote on/off switching
Current limiting
Low supply voltage protection
Loop fault protection
Demagnetization/overvoltage protection
Maximum duty cycle clamp
Feed-forward control
External synchronization
A
STG
CC
Switched-mode power supply control circuit
SYMBOL
Supply
Output transistor (at 20-30V max)
Operating ambient temperature range
Storage temperature range
Voltage-forced mode
Current-fed mode
Output current
Collector voltage (Pin 15)
Max. emitter voltage (Pin 14)
SE5560
NE5560
1
DESCRIPTION
PARAMETER
1
PIN CONFIGURATION
TEMPERATURE RANGE
DUTY CYCLE CONTROL
-55 C to 125 C
-55 C to 125 C
0 C to 70 C
0 to 70 C
MODULATOR
FEEDBACK
Figure 1. Pin Configuration
GAIN
V
V
R
C
CC
Z
T
T
1
2
3
4
5
6
7
8
D, F, N Packages
-55 to +125
-65 to +150
V
RATING
CC
0 to 70
+18
+5
30
40
+1.4V
ORDER CODE
NE5560N
NE5560D
SE5560N
SE5560F
16
15
14
13
12
11
10
9
FEEDFORWARD
OUTPUT (COLL)
OUTPUT (EMIT)
DEMAG: OVERVOLTAGE
GND
CURRENT LIMITING
REMOTE ON/OFF
EXTERNAL SYNC
NE/SE5560
Product specification
853-0125 13721
SOT162-1
UNIT
SOT38-4
SOT38-4
DWG #
mA
mA
0582B
V
V
V
C
C
C
SL00360

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NE5560N Summary of contents

Page 1

... Product specification NE/SE5560 Packages FEEDFORWARD OUTPUT (COLL OUTPUT (EMIT DEMAG: OVERVOLTAGE 5 12 GND 6 11 CURRENT LIMITING 7 10 REMOTE ON/OFF EXTERNAL SYNC T SL00360 ORDER CODE DWG # NE5560N SOT38-4 NE5560D SOT162-1 SE5560N SOT38-4 SE5560F 0582B RATING UNIT + +1. -55 to +125 -65 to +150 C 853-0125 13721 ...

Page 2

Philips Semiconductors Switched-mode power supply control circuit BLOCK DIAGRAM FEED FORWARD 16 SAWTOOTH REFERENCE GENERATOR VOLTAGE 0.48V 0.6V + FEEDBACK 3 VOLTAGE – 4 GAIN ADJUST 5 MODULATOR INPUT + 8 CUTY CYCLE CONTROL – + 0.6V 1k 0.48V – ...

Page 3

Philips Semiconductors Switched-mode power supply control circuit DC ELECTRICAL CHARACTERISTICS T = =12V, unless otherwise specified SYMBOL SYMBOL PARAMETER PARAMETER Reference sections V Internal reference voltage REF Temperature coefficient of V REF V Internal Zener reference ...

Page 4

Philips Semiconductors Switched-mode power supply control circuit DC ELECTRICAL CHARACTERISTICS SYMBOL SYMBOL PARAMETER PARAMETER Current limiting I Pin 11 Input current IN Single pulse inhibit delay OC2 Trip Levels: Shut down, slow start, low level OC1 Current limit, high level ...

Page 5

Philips Semiconductors Switched-mode power supply control circuit MAXIMUM PIN VOLTAGES Pin Feedback 4 Gain 5 Modulator 6 Duty Cycle Control External Sync 10 Remote On/Off ...

Page 6

Philips Semiconductors Switched-mode power supply control circuit TYPICAL PERFORMANCE CHARACTERISTICS Graph for Determining MAX MAX (%) 100 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Power ...

Page 7

Philips Semiconductors Switched-mode power supply control circuit TYPICAL PERFORMANCE CHARACTERISTICS Typical Frequency Plot f(kHz) 1000 100 R= R=10k R=20k 20 R=40k ...

Page 8

Philips Semiconductors Switched-mode power supply control circuit The current consumption at 12V is less than 10mA, provided that no current is drawn from V and R 20k . Z (7-12) The Sawtooth Generator Figure 6 shows the principal circuitry of ...

Page 9

Philips Semiconductors Switched-mode power supply control circuit 5.6V 1.1V >2V <0.8V 60dB 1kHz 10kHz Figure 8. Error Amplifier Compensation Open-Loop Gain (+) 8 1994 Aug 31 INHIBIT ‘SET’ Figure 7. Sawtooth Oscillator Synchronization SLOPE 20dB/DECADE 1MHz SL00367 3.72V + ERROR ...

Page 10

Philips Semiconductors Switched-mode power supply control circuit REF REF 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 (+) 8 (%) 100 ...

Page 11

Philips Semiconductors Switched-mode power supply control circuit 100 0.1 0.2 (%) MAX 50 MAX 40 30 MAX Figure 13. Soft-Start Minimum Duty Cycle ...

Page 12

Philips Semiconductors Switched-mode power supply control circuit OC NORMAL OPERATING POINT LEVEL 1 LEVEL 2 .48 V (CURRENT LIMITING) 11 Figure 15. Output Characteristics Dynamic Current Limit and Current Protection (Pin 11) In many applications not necessary to ...

Page 13

Philips Semiconductors Switched-mode power supply control circuit Remote On/Off Circuit (Pin 10) In systems where two or more power supplies are used often necessary to switch these supplies on and off in a sequential ...

Page 14

Philips Semiconductors Switched-mode power supply control circuit that it does not saturate, even under transient conditions, where the max. inductance is determined by V max. A regulation of MAX IN ~1/V will allow for a considerable reduction or simplification of ...

Page 15

Philips Semiconductors Switched-mode power supply control circuit NOTES: Power ground and signal ground must be kept separated T1, Primary = 130T (C.T.) #26 Secondary = 18T (C.T.) #22 Core = Ferroxcube 3622 3C8 material C.T. = 50T #26 0n Ferroxcube ...

Page 16

Philips Semiconductors Switched-mode power supply control circuit NOTES: Power ground and signal ground must be kept separated T1, Primary = 130T (C.T.) #26 Secondary = 18T (C.T.) #22 Core = Ferroxcube 3622 3C8 material C.T. = 50T #26 0n Ferroxcube ...

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