UCC28C40-Q1 Texas instruments

UCC28C40-Q1

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UCC28C40-Q1

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Описание

The UCC28C4x-Q1 family devices are high performance current-mode PWM controllers.The UCC28C4x-Q1 family supports a fixed-frequency, peak current-mode flyback implementation with UVLO and maximum duty-cycle limit options. UCC28C4X-Q1 can be configured with either primary-side regulation using an auxiliary winding or secondary-side regulation with the use of an opto-coupler. This family of devices features high frequency operation up to 1 MHz with low start up and operating currents, thus minimizing start up loss and operating power consumption for improved efficiency. The devices also feature a fast current sense to output delay time of 35 ns, and a ±1-A peak output current capability for driving large external MOSFETs directly.The UCC28C4x-Q1 family is offered in the 8-pin SOIC (D) package.

AEC-Q100 qualified with the following results:
- Device temperature grade 1: -40⁰C to 125⁰C
- Device HBM classification level 2: ±2 kV
- Device CDM classification level C4B: 750 V
Functional Safety-Capable
- Documentation available to aid functional safety system design
Operating frequency: 1 MHz Maximum
50-µA standby current, 100-µA maximum
Low operating current of 2.3 mA at 52 kHz
Fast 35-ns cycle-by-cycle over-current limiting
±1-A peak output current
Rail-to-rail output swings with 25-ns rise and 20-ns fall times
±1% initial trimmed 2.5-V error amplifier reference
Trimmed oscillator discharge current
New undervoltage lockout versions
Create a custom design using the UCC28C4x-Q1 with the WEBENCH Power Designer

Topology	Boost, Buck, Flyback, Forward, SEPIC
Control mode	Current
Duty cycle (max) (%)	100
Switching frequency (max) (kHz)	1000
Features	Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Multi-topology, Programmable max duty cycle
UVLO thresholds on/off (V)	7/6.6
Operating temperature range (°C)	-40 to 125
Rating	Automotive
Gate drive (typ) (A)	1
Vin (max) (V)	18
TI functional safety category	Functional Safety-Capable