Print Page
KA3843B
PWM Controller, 25V-12V supply, 500 kHz, 5V/200mA out, DIP-8
Image is for illustrative purposes only. Please refer to product description.
No Longer Manufactured
Product Information
ManufacturerONSEMI
Manufacturer Part NoKA3843B
Order Code1013832
Technical Datasheet
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%
TopologyNon Isolated
Operating Temperature Min0°C
Operating Temperature Max70°C
Product Range-
Qualification-
MSL-
SVHCNo SVHC (17-Dec-2015)
Automotive Qualification Standard-
Controller IC Case StyleDIP
Frequency500kHz
Input Voltage15V
Output Current200mA
Output Voltage5V
Alternatives for KA3843B
1 Product Found
Product Overview
The KA3843B is a fixed frequency current-mode PWM Controller for off-line and DC-to-DC converter applications with minimum external components. This integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator and a high current totem pole output ideally suited for driving a power MOSFET. The KA3843B is 8.5V (on) and 7.9V (off) and it can operate within 100% duty cycle.
- Low start up current
- Maximum duty clamp
- UVLO with hysteresis
Applications
Consumer Electronics
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
200mA
No. of Channels
1Channels
Supply Voltage Min
12V
IC Case / Package
DIP
IC Mounting
Through Hole
Switching Frequency Min
-
Duty Cycle Min
0%
Topology
Non Isolated
Operating Temperature Max
70°C
Qualification
-
SVHC
No SVHC (17-Dec-2015)
Controller IC Case Style
DIP
Input Voltage
15V
Output Voltage
5V
Technical Docs (3)
Associated Products
3 Products Found
Legislation and Environmental
Country of Origin:
Country in which last significant manufacturing process was carried outCountry of Origin:South Korea
Country in which last significant manufacturing process was carried out
Country in which last significant manufacturing process was carried outCountry of Origin:South Korea
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:To be advised
SVHC:No SVHC (17-Dec-2015)
Download Product Compliance Certificate
Product Compliance Certificate
Weight (kg):.001125