NE5560 Datasheet, PDF (1/16 Pages) NXP Semiconductors – Switched-mode power supply control circuit

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