Texas Instruments UC3825ADW, Dual PWM Controller, 1000 kHz 16-Pin, SOIC
- RS Stock No.:
- 661-5279P
- Mfr. Part No.:
- UC3825ADW
- Brand:
- Texas Instruments
Bulk discount available
Subtotal 25 units (supplied in a tube)*
£127.00
(exc. VAT)
£152.50
(inc. VAT)
FREE delivery for orders over £50.00
Temporarily out of stock
- 160 unit(s) shipping from 20 November 2025
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Units | Per unit |
|---|---|
| 25 - 99 | £5.08 |
| 100 - 249 | £4.95 |
| 250 - 499 | £4.82 |
| 500 + | £4.70 |
*price indicative
- RS Stock No.:
- 661-5279P
- Mfr. Part No.:
- UC3825ADW
- Brand:
- Texas Instruments
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Texas Instruments | |
| Maximum Switching Frequency | 1000 kHz | |
| Output Current | 2 A | |
| Number of Outputs | 2 | |
| Control Method | Current, Voltage | |
| Mounting Type | Surface Mount | |
| Fall Time | 20ns | |
| Rise Time | 20ns | |
| Package Type | SOIC | |
| Pin Count | 16 | |
| Topology | Boost, Flyback, Forward, Full Bridge, Half Bridge, Push-Pull | |
| Maximum Duty Cycle | 50% | |
| Dimensions | 10.28 x 7.52 x 2.35mm | |
| PWM Controller Type | Current Mode | |
| Length | 10.28mm | |
| Width | 7.52mm | |
| Height | 2.35mm | |
| Maximum Operating Temperature | +70 °C | |
| Minimum Operating Temperature | 0 °C | |
Select all | ||
|---|---|---|
Brand Texas Instruments | ||
Maximum Switching Frequency 1000 kHz | ||
Output Current 2 A | ||
Number of Outputs 2 | ||
Control Method Current, Voltage | ||
Mounting Type Surface Mount | ||
Fall Time 20ns | ||
Rise Time 20ns | ||
Package Type SOIC | ||
Pin Count 16 | ||
Topology Boost, Flyback, Forward, Full Bridge, Half Bridge, Push-Pull | ||
Maximum Duty Cycle 50% | ||
Dimensions 10.28 x 7.52 x 2.35mm | ||
PWM Controller Type Current Mode | ||
Length 10.28mm | ||
Width 7.52mm | ||
Height 2.35mm | ||
Maximum Operating Temperature +70 °C | ||
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 UC3825A family of PWM controllers are improved versions of the standard UC3823 and UC3825 family. Performance enhancements have been made to several of the circuit blocks. Error amplifier gain bandwidth product is 12 MHz, while input offset voltage is 2 mV. Current limit threshold is assured to a tolerance of 5%. Oscillator discharge current is specified at 10 mA for accurate dead time control. Frequency accuracy is improved to 6%. Start-up supply current, typically 100 μA, is ideal for off-line applications. The output drivers are redesigned to actively sink current during UVLO at no expense to the start-up current specification. In addition each output is capable of 2-A peak currents during transitions.
Improved Versions of the UC3823/UC3825 PWMs
Compatible with Voltage-Mode or Current-Mode Control Methods
Practical Operation at Switching Frequencies to 1 MHz
50-ns Propagation Delay to Output
High-Current Dual Totem Pole Outputs (2-A Peak)
Trimmed Oscillator Discharge Current
Low 100-μA Start-up Current
Pulse-by-Pulse Current Limiting Comparator
Latched Overcurrent Comparator With Full Cycle Restart
Compatible with Voltage-Mode or Current-Mode Control Methods
Practical Operation at Switching Frequencies to 1 MHz
50-ns Propagation Delay to Output
High-Current Dual Totem Pole Outputs (2-A Peak)
Trimmed Oscillator Discharge Current
Low 100-μA Start-up Current
Pulse-by-Pulse Current Limiting Comparator
Latched Overcurrent Comparator With Full Cycle Restart
Flyback Controllers, Texas Instruments
Current-Mode and Voltage-Mode PWM Controller
Primary-Side Regulation
Peak Power Mode
Low Power
Primary-Side Regulation
Peak Power Mode
Low Power