Seme LAB IP1060 Switched mode power supply control circuit Datasheet

IP1060A
IP1060A
IP1060B
SWITCHED MODE POWER
SUPPLY CONTROL CIRCUIT
V
1
1 6
F E E D F O R W A R D
2
1 5
O U T P U T
(C O L L )
3
1 4
O U T P U T
(E M IT )
G A IN
4
D E M A G N E T IZ A T IO N /
1 3
O V E R V O L T A G E
M O D U L A T O R
5
1 2
G N D
D U T Y C Y L E
C O N T R O L
6
1 1
C U R R E N T
7
1 0
R E M O T E
8
9
E X T E R N A L
C C
V
Z
F E E D B A C K
R
C
T
T
L IM IT IN G
O N /O F F
S Y N C
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
Order Information
Part Number
Temperature Range
Package
IP1060BJ
-55°C to + 125°C
16 Pin Ceramic DIP
IP1060D
-25°C to + 85°C
16 Pin Plastic (150)SOIC
IP1060J
-25°C to + 85°C
16 Pin Ceramic DIP
IP1060N
-25°C to + 85°C
16 Pin Plastic DIP
IP1060AD
0°C to + 70°C
16 Pin Plastic (150)SOIC
IP1060AJ
0°C to + 70°C
16 Pin Ceramic DIP
IP1060AN
0°C to + 70°C
16 Pin Plastic DIP
DESCRIPTION
The IP1060 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, sawtooth generator,
pulse width modulator, output stage and various
protection circuits.
ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated)
Supply
Voltage Sourced
Current Sourced
Output Transistor
Output current
Collector Voltage (Pin 15)
Max. Emitter Voltage (Pin 14)
Operating Temperature (Ambient)
IP1060B
IP1060
IP1060A
Storage Temperature Rage
Operating Junction Temperature Range
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: [email protected]
Website: http://www.semelab.co.uk
18V
30mA
40mA
18V
5V
–55°C to +125°C
–25°C to + 85°C
0°C to 70°C
–65°C to +150°C
150°C
Prelim. 7/99
IP1060A
IP1060A
IP1060B
ELECTRICAL CHARACTERISTICS (TJ = 25°C unless otherwise stated)
Parameter
Test Conditions
1
IP1060
IP1060B
Min.
Typ. Max.
Min.
3.69
3.81
3.57
4.03
3.42
IP1060A
Typ. Max.
Units
REFERENCE SECTION
Internal Reference Voltage
TJ = Over Temp. Range
(VREF)
±100
Temperature Coefficient of VREF
Internal Reference
3.72
3.42
2
7.9
(VZ) IL = 0.7mA
8.4
3.95
4.03
±100
9.0
7.8
±200
Temperature Coefficient of VZ
3.72
8.4
V
ppm/°C
9.0
±200
V
ppm/°C
OSCILLATOR SECTION
TJ = Over Temp. Range
Frequency Range
Initial Accuracy Oscillator
R = 5kW
Duty Cycle Range
fO = 20kHz
50
2
100k
50
5
0–90
0–98
0–90
100k
Hz
5
%
0–98
%
MODULATOR
VPin5 = 2V
Modulator Input Current
TJ = Over Temp. Range
-0.2
-5.0
-0.2
-5.0
mA
-0.2
-6.0
-0.2
-6.0
mA
40
50
60
40
50
60
8.85
9.0
10.8
8.85
9.0
10.8
V
460
600
720
460
600
720
mV
-7
-15
-35
-7
-15
-35
mA
470
600
720
470
600
720
mV
-0.6
-7.0
-0.6
-7.0
mA
2
SUPERVISORY FUNCTIONS
Pin 6, Input Current
At 2V O TJ = Over Temp. Range
Pin 6, Duty Cycle Limit Control
2
For 50% Max. Duty Cycle
15kHz to 50kHz
VPin6 = 0.4VZ
Pin 1, Low Supply Voltage
Protection Thresholds
Pin 3, Feedback Loop
Protection Trip Thresholds
Pin 3, Pull Up Current
At 2V
TJ = Over Temp. Range
2
Pin 13, Demag. / O.V.
Protection Threshold
Pin 13 Input Current
Pin 16, Feed Forward
Duty Cycle Control
TJ = Over Temp. Range
-20
2
-20
Cycle
% Orig.
30
VPin16 = 2VZ
40
50
30
40
50
Duty
Cycle
Pin 16, Feed Forward
Input Current
At 0.25V
% Duty
0.2
At 16V, VCC = 18V
50
0.2
50
mA
NOTES
1. Test Conditions unless otherwise stated: VCC = 12V, TJ = 25°C.
2. Applies Over Full Temperature Range:
IP1060B
TA = –55 to +125°C
IP1060
TA = –25 to +85°C
IP1060A
TA = 0 to +70°C
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: [email protected]
Website: http://www.semelab.co.uk
Prelim. 7/99
IP1060A
IP1060A
IP1060B
ELECTRICAL CHARACTERISTICS (TJ = 25°C unless otherwise stated)
Parameter
Test Conditions
IP1060
IP1060B
Min.
Typ. Max.
1
Min.
IP1060A
Typ. Max.
Units
EXTERNAL SYNCHRONISATION
Pin 9 Off
0
0.8
0
0.8
Pin 9 On
2
VZ
2
VZ
Pin 9, Sink Current
VPin9 = 0V
-85
-120
-85
-120
V
mA
REMOTE ON/OFF
Pin 10 Off
0
0.8
0
0.8
Pin 10 On
2
VZ
2
VZ
Pin 10 Sink Current Pin 9 =0V
VPin9 = 0V
V
-85
-120
-85
-120
mA
-2
-10
-2
-10
mA
0.7
0.8
0.7
0.8
Ds
560
600
700
560
600
700
mV
400
480
560
400
480
560
mV
9.5
6.2
to Pin 10 = 0V
CURRENT LIMITING
Pin 11 IIN
VPin11 = 250mV
Inhibit Delay Time for 20%
Single Pulse Inhibit Delay
Overdrive at IOUT = 30mA
Trip Levels:
Shut Down, Slow Start
Trip Levels: Current Limit
ERROR AMPLIFIER
Output Voltage Swing
(VOH)
Output Voltage Swing
(VOL)
6.2
9.5
0.7
Open Loop Gain
54
Feedback Resistor
10k
60
0.7
54
60
dB
3
MHz
W
10k
3
Small Signal Bandwidth
V
OUTPUT STAGE
VCE(sat)
IC = 40mA
Output Current
(Pin 15)
Max. Emitter Voltage
(Pin 14)
0.4
40
5
0.4
V
40
mA
5
V
SUPPLY VOLTAGE / CURRENT
Voltage Feed V6 = 5V
ICC
R7 = 25kW
IZ = 0
TJ = Over Temp. Range
2
10
10
mA
15
15
mA
VCC
ICC = 10mA, Current Feed
20
24
19
24
VCC
ICC = 30mA, Current Feed
20
30
20
30
V
NOTES
1. Test Conditions unless otherwise stated: VCC = 12V, TJ = 25°C.
2. Applies Over Full Operating Temperature Range:
IP1060B
TA = –55 to +125°C
IP1060
TA = –25 to +85°C
IP1060A
TA = 0 to +70°C
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: [email protected]
Website: http://www.semelab.co.uk
Prelim. 7/99
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