Texas Instruments UC3526ADW, Dual PWM Controller, 35 V, 650 kHz 18-Pin, SOIC

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Subtotal (1 tube of 40 units)*

£105.20

(exc. VAT)

£126.40

(inc. VAT)

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40 - 40£2.63£105.20
80 - 160£2.499£99.96
200 - 360£2.367£94.68
400 - 960£2.236£89.44
1000 +£2.104£84.16

*price indicative

RS Stock No.:
922-3445
Mfr. Part No.:
UC3526ADW
Brand:
Texas Instruments
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Brand

Texas Instruments

Maximum Switching Frequency

650 kHz

Output Current

100 mA

Number of Outputs

2

Control Method

Voltage

Mounting Type

Surface Mount

Fall Time

100ns

Package Type

SOIC

Rise Time

300ns

Pin Count

18

Topology

Boost, Flyback, Forward, Full Bridge, Half Bridge, Push-Pull

Maximum Duty Cycle

49%

Dimensions

11.62 x 7.52 x 2.35mm

Length

11.62mm

PWM Controller Type

Voltage Mode

Width

7.52mm

Height

2.35mm

Maximum Operating Temperature

+70 °C

Minimum Operating Supply Voltage

4.5 V

Maximum Operating Supply Voltage

35 V

Minimum Operating Temperature

0 °C

Flyback Controller, Voltage Control, 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.

The Texas Instruments UC1526A Series are improved-performance pulse-width modulator circuits intended for direct replacement of equivalent non- \x93A\x94 versions in all applications. Higher frequency operation has been enhanced by several significant improvements including: a more accurate oscillator with less minimum dead time, reduced circuit delays (particularly in current limiting), and an improved output stage with negligible cross-conduction current. Additional improvements include the incorporation of a precision, band-gap reference generator, reduced overall supply current, and the addition of thermal shutdown protection.

Reduced Supply Current
Oscillator Frequency to 600kHz
Precision Band-Gap Reference
7 to 35V Operation
Dual 200mA Source/Sink Outputs
Minimum Output Cross-Conduction
Double-Pulse Suppression Logic
Under-Voltage Lockout
Programmable Soft-Start
Thermal Shutdown
TTL/CMOS Compatible Logic Ports
5 Volt Operation (VIN = VC = VREF = 5.0V)


Flyback Controllers, Texas Instruments


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

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