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Seme LAB

IP5561C Datasheet Preview

IP5561C Datasheet

POWER SUPPLY CONTROLLER

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SEME
LAB
IP5661C
IP5561C
TOP VIEW
VCC 1
VZ 2
FEEDBACK 3
GAIN 4
8 GND
7 OUTPUT
CURRENT
6 SENSE
5 RT/CT
J Package – 8 Pin Ceramic DIP
N Package – 8 Pin Plastic DIP
D Package – 8 Pin Plastic (150) SOIC
BLOCK DIAGRAM
RT CT
5
SWITCHED–MODE
POWER SUPPLY
CONTROL CIRCUIT
FEATURES
• STABILISED POWER SUPPLY
• TEMPERATURE COMPENSATED REFERENCE
SOURCE
• SAWTOOTH GENERATOR
• PULSE WIDTH MODULATOR
• CURRENT LIMITING
• 8 PIN DIP
3
FEEDBACK
4
GAIN
CURRENT 6
SENSE
REFERENCE
VOLTAGE
ERROR
AMP
0.5V
SAWTOOTH
GENERATOR
PWM
S
LATCH
R
STABILISED
SUPPLY
1
VCC
8
GND
VCC
DESCRIPTION
The IP5561 is a control circuit for use in switched
mode power supplies. This single monolithic chip
7
OUTPUT incorporates all the control and supervisory (protection)
functions required in switched mode power supplies,
8.2V
2
Vz
including an internal temperature compensated
reference source, internal zener reference, sawtooth
generator, pulse width modulator, output stage and
cycle by cycle current limit.
Part
Number
IP5561
IP5561C
J–Pack N–Pack
8 Pin
8 Pin
D–8
8 Pin
Order Information
Temp.
Range
-55 to +125°C
0 to +70°C
Note:
To order, add the package identifier to the part number.
eg. IP5561J
IP5561CD–8
ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated)
SUPPLY
Voltage Sourced
Current Sourced
18V
30mA
OUTPUT TRANSISTOR
Output Current
Collector Voltage
(Pin 7)
TJ
TSTG
Operating Junction Temperature
Storage Temperature Range
40mA
18V
See Ordering Information
–55 to +150°C
Semelab plc. Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612.
Prelim. 4/95




Seme LAB

IP5561C Datasheet Preview

IP5561C Datasheet

POWER SUPPLY CONTROLLER

No Preview Available !

SEME
LAB
IP5661C
IP5561C
ELECTRICAL CHARACTERISTICS (TJ = 25°C unless otherwise stated)
IP5561
Parameter
Test Conditions
Min. Typ. Max.
REFERENCE SECTIONS
Internal Reference Voltage (VREF)
3.69 3.75 3.84
TJ = Over Temp. Range 3.65
3.88
Temperature Coefficient of VREF
±100
Internal Reference (VZ)
IL = -7mA
7.8 8.2 8.8
Temperature Coefficient of VZ
±200
OSCILLATOR SECTION
Frequency Range
Initial Accuracy Oscillator
Duty Cycle Range
TJ = Over Temp. Range
fO = 20kHz
50
0–90
12
0–98
100k
CURRENT LIMITING
IIN
Single Pulse Inhibit Delay
Current Limit Trip Level
Vpin6 = 250mV
TJ = Over Temp. Range
Inhibit Delay Time
IOUT = 20mA
for 20% overdrive
IOUT = 40mA
0.40
–2
0.88
0.7
0.50
–10
-20
1.10
0.8
0.60
ERROR AMPLIFIER
Output Voltage Swing (VOH)
Output Voltage Swing (VOL)
Open Loop Gain
6.2
0.7
60
Feedback Resistor
10k
Small Signal Bandwidth
3
OUTPUT STAGE
VCE(sat)
Output Current
IC = 20mA TJ = Over Temp. Range
TJ = Over Temp. Range
SUPPLY VOLTAGE/CURRENT
20
0.4
Supply Current (ICC)
Supply Voltage (VCC)
IZ = 0, Voltage Fed
10
TJ = Over Temp. Range
13
ICC = 10mA, Voltage Fed
20 21 22
ICC = 30mA, Voltage Fed
20 30
LOW SUPPLY PROTECTION
Pin 1 Threshold
8 9 10.5
IP5561C
Min. Typ. Max. Units
3.57 3.75 3.96
3.55 3.98
V
±100
ppm/°C
7.8 8.2 8.8
V
±200
ppm/°C
50
0–90
12
0–98
100k
Hz
%
–2 –10
-20
0.88 1.10
0.7 0.8
0.40 0.50 0.60
µA
µs
V
6.2
V
0.7
60 dB
10k
3 MHz
0.4 V
20 mA
10
mA
13
19 21 24
20 30
V
8 9 10.5 V
NOTES
1) Test Conditions: VCC = 12V , TJ = 25°C unless otherwise stated
2) Tests marked TJ = Over Temp. Range apply over the full temperature range
ie. TJ = -55 to +125°C for IP5561
TJ = 0 to +70°C for IP5561C
Semelab plc. Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612.
Prelim. 4/95


Part Number IP5561C
Description POWER SUPPLY CONTROLLER
Maker Seme LAB
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IP5561C Datasheet PDF






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