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See Technical Specifications

UC2845AQD8R +BOM

Automotive single ended 500KHz current mode PWM controller with 8.5V/7.9V UVLO 50% duty cycle

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

UC2845AQD8R
Datasheet:

UC2845AQD8R Datasheet (PDF)
Topology:

Boost, Flyback, Forward
Control Mode:

Current
Duty Cycle (max) (%):

50
Switching Frequency (max) (kHz):

500
EDA/CAD Models:

Request Free CAD Models for UC2845AQD8R

Email: [email protected]

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Tel: +852 95804164

UC2845AQD8R General Description

Offering advanced features and improved performance, the UC2845AQD8R is a standout member of the UC2842A/3A/4A/5A family of control ICs. Its low start-up current, precision oscillator discharge, and robust output stage capabilities during under voltage lockout set it apart as a top-tier option for current mode switched mode power supplies. With guaranteed performance and enhanced features, the UC2845AQD8R is the ideal choice for applications requiring reliable and efficient power supply control

Key Features

Extended Temperature Performance of –40°C to 125°C
Optimized for Off-line and DC to DC Converters
Low Start Up Current (<0.5 mA)
Trimmed Oscillator Discharge Current
Automatic Feed Forward Compensation
Pulse-by-Pulse Current Limiting
Enhanced Load Response Characteristics
Under-Voltage Lockout With Hysteresis
Double Pulse Suppression
High Current Totem Pole Output
Internally Trimmed Bandgap Reference
500 kHz Operation
Low R_O Error Amp

Specifications

Topology	Boost, Flyback, Forward	Control mode	Current
Duty cycle (max) (%)	50	Switching frequency (max) (kHz)	500
Features	Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Multi-topology	UVLO thresholds on/off (V)	8.5/7.9
Operating temperature range (°C)	-40 to 125	Rating	Automotive
Gate drive (typ) (A)	1	Vin (max) (V)	40
feature-type	Current Mode PWM Controller	feature-control-method	Current Mode PWM Controller
feature-topology	Boost\|Flyback	feature-number-of-pwm-outputs	1
feature-switching-frequency-khz	500	feature-maximum-duty-cycle-	50
feature-process-technology		feature-output-voltage-v
feature-minimum-operating-supply-voltage-v		feature-maximum-operating-supply-voltage-v	30
feature-maximum-supply-current-ma	17	feature-maximum-power-dissipation-mw	1000
feature-synchronous-pin	No	feature-packaging	Tape and Reel
feature-rad-hard		feature-pin-count	8
feature-cecc-qualified	No	feature-esd-protection
feature-escc-qualified		feature-military	No
feature-aec-qualified	Yes	feature-aec-qualified-number
feature-eccn-code	EAR99	feature-svhc	No
feature-svhc-exceeds-threshold	No