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KA3843B The KA3843B is a fixed frequency current-mode PWM controller designed for Off-Line and DC-to-DC converters. It operates with an input voltage range of 12V to 30V and a maximum output current of 1A.
Mfr Part #:

KA3843B

Available from 1 distributors
Mfr Name: N-A
N-A
The KA3843B is a fixed frequency current-mode PWM controller designed for Off-Line and DC-to-DC converters. It operates with an input voltage range of 12V to 30V and a maximum output current of 1A.
✓ Total Stock: 487 pcs
$ Price Range: $165.89

KA3843B Available from 1 distributor

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✓ Non-Authorised
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487 pcs
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487 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

KA3843B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Duty Cycle
Frequency
Mounting Type
Output Current
Output Type
Output Voltage
Power Dissipation
Storage Temperature
Supply Current
Tape & Reel
Voltage
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KA3843B Description

Short technical summary and product information.

The KA3843B from N-A is a fixed frequency current-mode Pulse Width Modulation (PWM) controller. It is specifically engineered for applications in Off-Line and DC-to-DC converters. This component features an operating input voltage range from 12V to 30V, with a nominal input voltage of 15V. The controller can deliver a maximum output current of 1A and operates at a frequency of 500kHz.

 

Key electrical specifications include a minimum operating voltage of 7V and a nominal output voltage of 5V. The device supports 100% duty cycle operation. It has a typical operating supply current of 17mA, a rise time of 45ns, and a fall time of 35ns. The power dissipation is rated at 1.2W.

 

In terms of thermal performance, the KA3843B operates within a temperature range of 0°C to 70°C. The component is housed in a DIP package and is designed for through-hole mounting. Its output type is voltage.

KA3843B Quick Information

Product Type: Current Mode PWM Controller
Canonical Name: KA3843B Current Mode PWM Controller
Subcategory: Current Mode PWM Controller

KA3843B Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

KA3843B Estimated Pricing

Qty Low High
1+ $165.89 $165.89

Estimated market price range - modelled values for guidance only, not live distributor offers.

KA3843B Features

  • Fixed frequency current-mode PWM controller.
  • Designed for Off-Line and DC-to-DC converters.
  • 12V to 30V input voltage range.
  • Maximum output current of 1A.
  • Operates at 500kHz frequency.

KA3843B Applications

  • Suitable for Off-Line converters.
  • Ideal for DC-to-DC converters.
  • Used in power supply designs.
  • Enables voltage regulation circuits.

KA3843B FAQs

6 frequently asked questions generated from this part’s specifications.
What is the input voltage range for the KA3843B?

The KA3843B operates with a minimum input voltage of 12V and a maximum input voltage of 30V.

What is the maximum output current of the KA3843B?

The maximum output current for the KA3843B is 1A.

What is the operating frequency of the KA3843B?

The KA3843B operates at a nominal frequency of 500kHz.

What type of package is the KA3843B in?

The KA3843B is available in a DIP package.

How is the KA3843B mounted?

The KA3843B is designed for through-hole mounting.

What is the operating temperature range for the KA3843B?

The KA3843B has an operating temperature range from 0°C to 70°C.

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