Texas Instruments UC3846N, PWM Current Mode Controller, Dual 500 mA, 500 kHz 16-Pin PDIP

Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

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.

Flyback Controllers, Texas Instruments

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

Specifications
Attribute Value
Number of PWM Outputs 2
Control Method Current
Topology Boost, Buck, Flyback, Forward, Full Bridge, Half Bridge, Push-Pull
Rise Time 50ns
Fall Time 50ns
Maximum Duty Cycle 50%
Maximum Switching Frequency 500 kHz
Mounting Type Through Hole
Package Type PDIP
Pin Count 16
Output Current 500 mA
On/Off Pin Yes
Synchronous Pin Yes
Minimum Operating Temperature 0 °C
Height 4.57mm
Maximum Operating Temperature +70 °C
Length 19.3mm
Dimensions 19.3 x 6.35 x 4.57mm
Width 6.35mm
100 In stock for delivery within 4 working days
Price Each (In a Pack of 5)
SGD 7.49
(exc. GST)
SGD 8.01
(inc. GST)
units
Per unit
Per Pack*
5 - 20
SGD7.49
SGD37.45
25 - 95
SGD6.754
SGD33.77
100 - 245
SGD6.606
SGD33.03
250 - 495
SGD6.456
SGD32.28
500 +
SGD6.454
SGD32.27
*price indicative
Packaging Options:
Related Products
The PAC1932/3/4 are two, three and four-channel power ...
Description:
The PAC1932/3/4 are two, three and four-channel power and energy monitoring devices. A high-voltage multiplexer sequentially connects the inputs to a bus voltage monitor and current sense amplifier that feed high-resolution ADCs. Digital circuitry performs power calculations and energy accumulation. ...
Power Factor Correction (PFC) controllers operate in Transition ...
Description:
Power Factor Correction (PFC) controllers operate in Transition Mode (TM) and Continuous Current Mode (CCM) for a wide-range-mains operation. The PFC controllers embed advanced protection features, which make SMPS more robust and compact, requiring fewer external components.
VIPer® high-voltage converters from the mains voltage (230VAC) ...
Description:
VIPer® high-voltage converters from the mains voltage (230VAC) are fixed frequency offline converter ICs, integrating a PWM controller and a 700V vertical power MOSFET.Typical applications cover offline power supplies. They are compatible from either the primary side or the secondary ...
From Texas Instruments, a range of Pulse Width ...
Description:
From Texas Instruments, a range of Pulse Width Modulation controllers and associated devices to suit a variety of applications and specifications.