onsemi KA3842BD
Obsolete
Supply Chain
Export Control Classification Number (ECCN) CodeEAR99
Harmonized Tariff Schedule (HTS) Code8542.39.00.60
Introduction Date2017-03-24
Lifecycle StatusObsolete (Last Updated: 5 months ago)
Related Parts
Descriptions
Descriptions of onsemi KA3842BD provided by its distributors.
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO14
Lead Free SWITCHING CONTROLLER PULSE WIDTH MODULATION RoHS Compliant Converter Offline 35ns 0C~70C TA 1A Up to 500kHz
Converter Offline Up to 500kHz 14-SOP
Supervisory Circuits PWM Control IC
The KA3842B/KA3843B/KA3844B/KA3845B are fixed frequency current-mode PWM controller. They are specially designed for Off-Line and DC-to-DC converter applications with minimum external components. These 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 totempole output ideally suited for driving a power MOSFET. The KA3842B and KA3844B have UVLO thresholds of 16V (on) and 10V (off) The KA3843B and KA3845B are 8.5V (on) and 7.9V (off) The KA3842B and KA3843B can operate within 100% duty cycle. The KA3844B and KA3845B can operate with 50% duty cycle.
Manufacturer Aliases
onsemi has several brands around the world that distributors may use as alternate names. onsemi may also be known as the following names:
- ON Semiconductor
- ONS
- ONSEMICON
- ON SEM
- ON SEMICONDUCTO
- ON SEMICONDUCTORS
- ONSEMIC
- ON Semicondu
- OSC
- ONSE
- ON SEMICOND
- ON Semiconductor / Fairchild
- SCG
- ON Semiconductor Cor
- ON SEMICO
- ONSM
- ON SEMICONDUCTOR CORP
- onsemi / Fairchild
- MOT/ON SEMI
- Fairchild/ONSemiconductor
- ON Semiconductor Corporation
- ON4
- ON Semi - ON Semiconductor
- ON SEMICONDUCT
- ON-SEMI SCG
- ON Semiconductor Inc.
- onsemiconductor
- On Semiconductor Ltd
Technical Specifications
Physical
Case/PackageSOP
MountSurface Mount
Number of Pins14
Number of Terminals14
Weight218.3 mg
Technical
Duty Cycle97 %
Fall Time35 ns
Max Duty Cycle100 %
Max Input Voltage25 V
Max Operating Temperature70 °C
Max Output Current1 A
Max Output Voltage5.1 V
Max Supply Current17 mA
Max Supply Voltage30 V
Max Switching Frequency500 kHz
Min Input Voltage11.5 V
Min Operating Temperature0 °C
Min Output Voltage4.9 V
Min Supply Voltage8.5 V
Nominal Input Voltage15 V
Nominal Output Voltage5 V
Number of Circuits1
Number of Outputs1
Operating Supply Current17 mA
Output Current1 A
Rise Time45 ns
Switching Frequency500 kHz
Temperature GradeCommercial
Dimensions
Height - Seated (Max)1.8 mm
Length8.56 mm
Terminal Pitch1.27 mm
Width3.95 mm
Compliance
Environmental Classification
Lead FreeLead Free
REACH SVHCYes
RoHSCompliant
Compliance Statements