LM5039SQX/NOPB Texas Instruments - Yeehing Electronics

Half-bridge PWM controller with advanced current limit

Pricing (USD)

Quantity	Unit Price
1 — 99	3.266
100 — 249	2.862
250 — 999	2.007
1,000 +	1.13

The above prices are for reference only.

Specifications

Manufacturer	Texas Instruments
Product Category	Switching Controllers
RoHS	Y
Topology	Full-Bridge, Half-Bridge, Push-Pull
Switching Frequency	100 kHz to 1000 kHz
Output Current	2 A
Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 125 C
Package / Case	WQFN-24
Packaging	Reel
Operating Temperature Range	- 40 C to + 125 C
Series	LM5039
Type	Voltage Mode PWM Controllers
Brand	Texas Instruments
Development Kit	LM5039EVAL/NOPB
Product Type	Switching Controllers
Factory Pack Quantity	4500
Subcategory	PMIC - Power Management ICs
Unit Weight	0.001411 oz

For more information, please refer to datasheet

Documents

LM5039SQX/NOPB Datasheet

More Information

The LM5039 Half-Bridge Controller/Gate Driver contains all of the features necessary to implement half-bridge topology power converters using voltage mode control with line voltage feed-forward. The LM5039 is a functional variant of the LM5035B half-bridge PWM controller, featuring average current limit during an overload event to balance the center-point of the half-bridge capacitor divider. The floating high-side gate driver is capable of operating with supply voltages up to 105V. Both the high-side and low-side gate drivers are capable of 2A peak. An internal high voltage startup regulator is included, along with programmable line undervoltage lockout (UVLO). The oscillator is programmed with a single resistor to frequencies up to 2MHz. The oscillator can also be synchronized to an external clock. A current sense input provides peak cycle-by-cycle and average current limit. Other features include adjustable hiccup mode overload protection, soft-start, revision reference, and thermal shutdown.