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KA3843BD on a board, in 3D

KA3843BD

onsemi

0℃~+70℃ 12V~25V 500kHz 680mW 97% PWM Modulation Under-voltage lockout、Slope compensation SOIC-14 AC-DC Controllers and Regulators ROHS

Extended
DatasheetJLCPCBLCSConsemi/KA3843BD
Category
AC DC Controllers And Regulators
Package
SOIC-14
Pins
14

Overview

The KA3843BD is an AC DC Controllers And Regulator made by onsemi in a SOIC-14 package with 14 pins. 0℃~+70℃ 12V~25V 500kHz 680mW 97% PWM Modulation Under-voltage lockout、Slope compensation SOIC-14 AC-DC Controllers and Regulators ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:KA3843BD, from EasyEDA) and its footprint (Package_SO:SOIC-14_3.9x8.7mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3094663).

Symbol

COMP1N/C2VFB3N/C4CURRENT_SENSE5N/C6RT/CT7PWR_GND8GND9OUTPUT10PWR_VC11VCC12N/C13VREF14
EasyEDA_Cloud:KA3843BDFrom EasyEDA

Footprint

1234567891011121314
Package_SO:SOIC-14_3.9x8.7mm_P1.27mmFrom KiCad's library

Parameters

7
Duty Cycle(Max)
97%
Features
Slope compensation；Under-voltage lockout
Frequency - Switching
500kHz
Operating Temperature
0℃~+70℃
Pd - Power Dissipation
680mW
Voltage - Supply
12V~25V
Working Mode
PWM Modulation

Order codes

1

Pinout

14
The pins of the KA3843BD
PinNameType
1COMPUnspecified
2N/CUnspecified
3VFBUnspecified
4N/CUnspecified
5CURRENT_SENSEUnspecified
6N/CUnspecified
7RT/CTUnspecified
8PWR_GNDUnspecified
9GNDUnspecified
10OUTPUTUnspecified
11PWR_VCUnspecified
12VCCUnspecified
13N/CUnspecified
14VREFUnspecified

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A picture that opens the part, for a README
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Questions

Is there a KiCad symbol and footprint for the KA3843BD?

Yes. The symbol is EasyEDA_Cloud:KA3843BD and the footprint Package_SO:SOIC-14_3.9x8.7mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the KA3843BD?

SOIC-14, with 14 pins. Its footprint is drawn on this page.

Where is the KA3843BD datasheet?

onsemi publishes it: the Datasheet link on this page opens it.

Where can I order the KA3843BD?

JLCPCB lists it as part C3094663, with 0 in stock; the sellers' links on this page open their listings.

What can replace the KA3843BD?

Parts like it in the library: the L6563A by STMicroelectronics, the UC2843ADTR by Texas Instruments, the UC2844BD by onsemi and the UC3842BD by onsemi. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8