UC3827DW-1 Texas Instruments - Yeehing Electronics

Buck current Fed push-pull PWM controller, 0°C to 70°C

Pricing (USD)

Quantity	Unit Price
1 — 99	6.291
100 — 249	5.129
250 — 999	4.031
1,000 +	2.39

The above prices are for reference only.

Specifications

Manufacturer	Texas Instruments
Product Category	Switching Controllers
RoHS	Y
Topology	Buck
Number of Outputs	3 Output
Switching Frequency	450 kHz
Duty Cycle - Max	50 %
Output Current	1 A
Minimum Operating Temperature	0 C
Maximum Operating Temperature	+ 70 C
Mounting Style	SMD/SMT
Package / Case	SOIC-24
Packaging	Tube
Operating Temperature Range	0 C to + 70 C
Series	UC3827-1
Type	Current Mode PWM Controllers
Brand	Texas Instruments
Fall Time	30 ns
Moisture Sensitive	Yes
Product Type	Switching Controllers
Rise Time	40 ns
Factory Pack Quantity	25
Subcategory	PMIC - Power Management ICs
Unit Weight	0.023919 oz

For more information, please refer to datasheet

Documents

UC3827DW-1 Datasheet

More Information

The UC3827 family of controller devices provides an integrated control solution for cascaded buck and push-pull converters. These converters are known as current fed or voltage fed push-pull converters and are ideally suited for multiple output and/or high voltage output applications. In both current fed and voltage fed modes, the push-pull switches are driven at 50% nominal duty cycles and at one half the switching frequency of the buck stage. In the current fed mode, the two switches are driven with a specified over-lap period to prevent ringing and voltage stress on the devices. In the voltage fed mode, the two switches are driven with a specified gap time between the switches to prevent shorting the transformer across the energy storage capacitor and to prohibit excessive currents flowing through the devices.