products details

Home Products

ST IC Chips

UC2844BD1013TR ST IC Chips HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

All Category

High Power LED Chip

Miss. alice

sales_deng@163.com

+86 18802688921

Contact Now

All Category

UC2844BD1013TR ST IC Chips HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

Brand Name:	ST IC chips
Model Number:	UC2844BD1013TR
MOQ:	2500PCS
Packaging Details:	2500PCS/reel
Payment Terms:	T/T

Detail Information

Product Description

Detail Information

Place of Origin:

China

Document:

Model:

UC2844BD1013TR

Brand:

ST IC Chips

Type:

SMD/SMT

Operating Temperature:

- 40 °C ~ + 150 °C

Output Voltage:

4.95 V To 5.05 V

Output Current:

Supply Ability:

100000

Highlight:

UC2844BD1013TR ST IC Chips

PWM Controller

Current Mode Controller

Product Description

ST chip UC2844BD1013TR HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

TRIMMED OSCILLATOR FOR PRECISE FREQUENCY CONTROL

OSCILLATOR FREQUENCY GUARANTEED AT 250kHz

CURRENT MODE OPERATION TO 500kHz

AUTOMATIC FEED FORWARD COMPENSATION

LATCHING PWM FOR CYCLE-BY-CYCLE CURRENT LIMITING

INTERNALLY TRIMMED REFERENCE WITH UNDERVOLTAGE LOCKOUT

HIGH CURRENT TOTEM POLE OUTPUT

UNDERVOLTAGE LOCKOUT WITH HYSTERESIS

LOW START-UP AND OPERATING CURRENT

DESCRIPTION

The UC384xB family of control ICs provides the nec-essary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count. Internally imple-mented circuits include a trimmed oscillator for pre-cise DUTY CYCLE CONTROL under voltage lock-out featuring start-up current less than 0.5mA, a pre-cision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparator which also provides current limit control, and a totem pole output stage designed to source or sink high peak current. The output stage, suitable for driving N-Channel MOSFETs, is low in the off-state. Differences between members of this family are the under-voltage lockout thresholds and maximum duty cycle ranges. The UC3842B and UC3844B have UVLO thresholds of 16V (on) and 10V (off), ideally suited off-line applications The corresponding thresh-olds for the UC3843B and UC3845B are 8.5 V and 7.9 V. The UC3842B and UC3843B can operate to duty cycles approaching 100%. A range of the zero to < 50 % is obtained by the UC3844B and UC3845B by the addition of an internal toggle flip flop which blanks the output off every other clock cycle.

ABSOLUTE MAXIMUM RATINGS

Tags:

OSRAM LED Chip

CREE LED Chip

ST IC Chips

TI Chips

Bridgelux LED Chip

Infineon Chip

LUMINUS LED Chip

LED Lamp Beads

SAMSUNG IC Chips

Micron Chips

SK Hynix Chips

Lumileds LED Chip

SAMSUNG LED Chip

SEOUL LED Chip

NICHIA LED Chip

NeXperia Chips

ONsemi Chips

ADI Chips

TSLC Semileds LED Lamp Beads

High Power LED Chip

OSRAM LED Chip

CREE LED Chip

ST IC Chips

TI Chips

Bridgelux LED Chip

Infineon Chip

LUMINUS LED Chip

LED Lamp Beads

SAMSUNG IC Chips

Micron Chips

SK Hynix Chips

Lumileds LED Chip

SAMSUNG LED Chip

SEOUL LED Chip

NICHIA LED Chip

NeXperia Chips

ONsemi Chips

ADI Chips

TSLC Semileds LED Lamp Beads

High Power LED Chip

products details

UC2844BD1013TR ST IC Chips HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

OSRAM LED Chip

CREE LED Chip

ST IC Chips

TI Chips

Bridgelux LED Chip

Infineon Chip

LUMINUS LED Chip

LED Lamp Beads

SAMSUNG IC Chips

Micron Chips

SK Hynix Chips

Lumileds LED Chip

SAMSUNG LED Chip

SEOUL LED Chip

NICHIA LED Chip

NeXperia Chips

ONsemi Chips

ADI Chips

TSLC Semileds LED Lamp Beads

High Power LED Chip

OSRAM LED Chip

CREE LED Chip

ST IC Chips

TI Chips

Bridgelux LED Chip

Infineon Chip

LUMINUS LED Chip

LED Lamp Beads

SAMSUNG IC Chips

Micron Chips

SK Hynix Chips

Lumileds LED Chip

SAMSUNG LED Chip

SEOUL LED Chip

NICHIA LED Chip

NeXperia Chips

ONsemi Chips

ADI Chips