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UC3843AN
Current Mode PWM, 25V-12V supply, 500 kHz, 15V/1A out, DIP-8
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| Quantity | Price (inc GST) |
|---|---|
| 1+ | S$1.940 (S$2.1146) |
| 10+ | S$1.930 (S$2.1037) |
| 50+ | S$1.920 (S$2.0928) |
| 100+ | S$1.910 (S$2.0819) |
| 250+ | S$1.900 (S$2.071) |
| 500+ | S$1.890 (S$2.0601) |
| 1000+ | S$1.880 (S$2.0492) |
| 2500+ | S$1.860 (S$2.0274) |
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Product Information
ManufacturerTEXAS INSTRUMENTS
Manufacturer Part NoUC3843AN
Order Code3008564
Power Supply Controller TypeSingle Ended Controller
No. of Channels1Channels
Control ModeCurrent Mode Control
Supply Voltage Min12V
Supply Voltage Max25V
IC Case / PackageDIP
No. of Pins8Pins
IC MountingThrough Hole
Switching Frequency Typ-
Switching Frequency Min-
Switching Frequency Max500kHz
Duty Cycle Min0%
Duty Cycle Max100%
TopologyFlyback, Forward
Operating Temperature Min0°C
Operating Temperature Max70°C
Product Range-
Qualification-
MSL-
SVHCNo SVHC (27-Jun-2018)
Automotive Qualification Standard-
Controller IC Case StyleDIP
Frequency500kHz
Input Voltage25V
Output Current1A
Output Voltage15V
Product Overview
The UC3843AN is a Current Mode PWM Controller optimized for off-line and DC to DC converters. Providing the necessary features to control current mode switched mode power supplies, this controller has the following improved features. Start up current is guaranteed to be less than 0.5mA. Oscillator discharge is trimmed to 8.3mA. During under-voltage lockout, the output stage can sink at least 10mA at less than 1.2V for VCC over 5V.
- Optimized for off-line and DC to DC converters
- Low start up current (<lt/>0.5mA)
- Trimmed oscillator discharge current
- Automatic feed forward compensation
- Pulse-by-pulse current limiting
- Enhanced load response characteristics
- Under-voltage lockout with hysteresis
- Double pulse suppression
- High current totem pole output
- Internally trimmed bandgap reference
- Low RO error amp
- Green product and no Sb/Br
Applications
Power Management
Technical Specifications
Power Supply Controller Type
Single Ended Controller
Control Mode
Current Mode Control
Supply Voltage Max
25V
No. of Pins
8Pins
Switching Frequency Typ
-
Switching Frequency Max
500kHz
Duty Cycle Max
100%
Operating Temperature Min
0°C
Product Range
-
MSL
-
Automotive Qualification Standard
-
Frequency
500kHz
Output Current
1A
No. of Channels
1Channels
Supply Voltage Min
12V
IC Case / Package
DIP
IC Mounting
Through Hole
Switching Frequency Min
-
Duty Cycle Min
0%
Topology
Flyback, Forward
Operating Temperature Max
70°C
Qualification
-
SVHC
No SVHC (27-Jun-2018)
Controller IC Case Style
DIP
Input Voltage
25V
Output Voltage
15V
Technical Docs (1)
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Legislation and Environmental
Country of Origin:
Country in which last significant manufacturing process was carried outCountry of Origin:Malaysia
Country in which last significant manufacturing process was carried out
Country in which last significant manufacturing process was carried outCountry of Origin:Malaysia
Country in which last significant manufacturing process was carried out
Tariff No:85423990
US ECCN:EAR99
EU ECCN:NLR
RoHS Compliant:Yes
RoHS
RoHS Phthalates Compliant:Yes
RoHS
SVHC:No SVHC (27-Jun-2018)
Download Product Compliance Certificate
Product Compliance Certificate
Weight (kg):.000833