UC3843AD8TR Texas Instruments - Yeehing Electronics

30-V, 1A, 500KHz current mode PWM controller with 8.4V/7.6V UVLO 100% duty cycle 0°C to 70°C

Pricing (USD)

Quantity	Unit Price
1 — 99	0.79
100 — 249	0.608
250 — 999	0.448
1,000 +	0.19

The above prices are for reference only.

Specifications

Manufacturer	Texas Instruments
Product Category	Switching Controllers
RoHS	Y
Topology	Boost, Buck, Flyback, Forward
Number of Outputs	1 Output
Switching Frequency	450 kHz
Duty Cycle - Max	100 %
Output Current	1 A
Minimum Operating Temperature	0 C
Maximum Operating Temperature	+ 70 C
Mounting Style	SMD/SMT
Package / Case	SOIC-8
Packaging	Reel
Operating Temperature Range	0 C to + 70 C
Series	UC3843A
Type	Current Mode PWM Controllers
Brand	Texas Instruments
Fall Time	50 ns
Product Type	Switching Controllers
Rise Time	50 ns
Factory Pack Quantity	2500
Subcategory	PMIC - Power Management ICs
Unit Weight	0.002561 oz

For more information, please refer to datasheet

Documents

UC3843AD8TR Datasheet

More Information

The UCx84xA family of control devices is a pin-for-pin compatible improved version of the UCx84x family. Providing the necessary features to control current-mode or switched-mode power supplies, this family of devices has many improved features: startup current is less than 0.5 mA, oscillator discharge is trimmed to 8.3 mA, and during UVLO, the output stage can sink at least 10 mA at less than 1.2 V for VCC over 5 V.