Philips Semiconductors
Product specification
Switched-mode power supply control circuit
DESCRIPTION
NE/SE5560
PIN CONFIGURATION
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.
D, F, N Packages
VCC 1
16 FEEDFORWARD
2
15 OUTPUT (COLL)
VZ
FEEDBACK 3
14 OUTPUT (EMIT)
GAIN 4
13 DEMAG: OVERVOLTAGE
MODULATOR 5
FEATURES
• 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
12 GND
DUTY CYCLE CONTROL 6
RT
11 CURRENT LIMITING
7
10 REMOTE ON/OFF
CT 8
9
EXTERNAL SYNC
SL00360
Figure 1. Pin Configuration
ORDERING INFORMATION
DESCRIPTION
TEMPERATURE RANGE
16-Pin Plastic Small Outline Large (SOL) Package
ORDER CODE
DWG #
0 to 70°C
16-Pin Plastic Dual In-Line Package (DIP)
NE5560N
SOT38-4
0°C to 70°C
NE5560D
SOT162-1
16-Pin Plastic Dual In-Line Package (DIP)
-55°C to 125°C
SE5560N
SOT38-4
16-Pin Cerdip Dual In-Line Package (CERDIP)
-55°C to 125°C
SE5560F
0582B
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
RATING
UNIT
Supply1
VCC
Voltage-forced mode
+18
V
ICC
Current-fed mode
30
mA
Output transistor (at 20-30V max)
IOUT
Output current
40
TA
V
-55 to +125
°C
0 to 70
°C
-65 to +150
°C
Operating ambient temperature range
SE5560
NE5560
TSTG
V
+5
Max. emitter voltage (Pin 14)
mA
VCC+1.4V
Collector voltage (Pin 15)
Storage temperature range
NOTES:
1. Does not include current for timing resistors or capacitors.
1994 Aug 31
1
853-0125 13721
