Texas Instruments UC3844N, PWM Controller, 500 kHz 8-Pin, PDIP

RS Stock No.:
9233842
Mfr. Prt No.:
UC3844N
Brand:
Texas Instruments

Technical Reference

Legislation and Compliance

RoHS Certificate of Compliance

RS Components
RoHS Certificate of Compliance

EU Directives 2011/65/EU and 2015/863 restrict the use of the 10 substances below in the manufacture of specified types of electrical equipment.

Whilst this restriction does not legally apply to components, it is recognised that component “compliance” is relevant to many customers.

RS definition of RoHS Compliance:

  • The product does not contain any of the restricted substances in concentrations and applications banned by the Directive,
  • and for components, the product is capable of being worked on at the higher temperatures required by lead–free soldering

The restricted substances and maximum allowed concentrations in the homogenous material are, by weight:

SubstanceConcentration
Lead0.1%
Mercury0.1%
PBB (Polybrominated Biphenyls)0.1%
PBDE ( Polybrominated Diphenyl Ethers)0.1%
Hexavalent Chromium0.1%
Cadmium0.01%
DEHP (Bis (2-Ethylhexl) phthalate)0.1%
BBP (Benzyl butyl phthalate)0.1%
DBP (Dibutyl phthalate)0.1%
DIBP (Diisobutyl phthalate)0.1%

The supplier of the item listed below has informed RS Components that the product is "RoHS Compliant".

RS Components has taken all reasonable steps to confirm this statement. Information relates only to products sold on or after the date of this certificate.

Compliant Product Details
RS stock number 9233842
Product description Texas Instruments UC3844N, PWM Controller, 500 kHz 8-Pin, PDIP
Manufacturer / Brand Texas Instruments
Manufacturer part number UC3844N

RS Components Ltd, Birchington Road, Corby, Northants, NN17 9RS, UK

Statement of Conformity

RS Components
Statement of Conformity

This statement confirms that the product detailed below complies with the specifications currently published in the RS media and has been subject to the strict quality conditions imposed by RS Components’ internal management systems. Furthermore and where applicable, it confirms that all relevant semiconductor devices have been handled and packed under conditions that meet the administrative and technical requirements of ANSI/ESD S20.20 and EN61340-5-1 electrostatics control standards.

Compliant Product Details
RS stock number 9233842
Product description Texas Instruments UC3844N, PWM Controller, 500 kHz 8-Pin, PDIP
Manufacturer / Brand Texas Instruments
Manufacturer part number UC3844N

The foregoing information relates to product sold on, or after, the date shown below.

RS COMPONENTS

Date Mar 2, 2024

RS Components Pte Ltd Robinson Road, P.O. Box 1582, Singapore 903132


Product Details

Flyback Controllers, Texas Instruments

Flyback Controller, Current Control, UC18/UC28/UC38 Series, Texas Instruments

The isolated-flyback power supply controller provides Constant-Voltage (CV) and Constant-Current (CC) output regulation to improve transient response to large load steps. Primary-Side Regulation (PSR) eliminates the need for an Optocoupler.

Current-Mode and Voltage-Mode PWM Controller
Primary-Side Regulation
Peak Power Mode
Low Power


Specifications

Attribute Value
Brand Texas Instruments
Maximum Switching Frequency 500 kHz
Output Current 1 A
Number of Outputs 1
Control Method Current
Fall Time 50 ns
Mounting Type Through Hole
Package Type PDIP
Rise Time 50 ns
Pin Count 8
Topology Boost, Buck, Flyback, Forward
Dimensions 9.81 x 6.35 x 4.57 mm
Maximum Duty Cycle 50 %
Length 9.81 mm
PWM Controller Type Current Mode
Width 6.35 mm
Height 4.57 mm
Maximum Operating Temperature +70 °C
Minimum Operating Temperature 0 °C
Checking stock...
IDR
916,738.60
Out of stock
Price Tube (1 Tube of 50)
Tube(s)Per Tube(IDR)Per Unit(IDR)
1916,738.6018,334.77
*price per unit indicative
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