UC2843BG-S08-R datasheet(6/9 Pages) UTC

No. de pieza	UC2843BG-S08-R

Descripción Electrónicos	HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS

PDF	9 Pages

Scroll/Zoom	100%

Fabricante Electrónico	UTC [Unisonic Technologies]

Página de inicio	http://www.utc-ic.com

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UC2843B

Preliminary

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

6 of 9

www.unisonic.com.tw

QW-R103-048.a

ELECTRICAL CHARACTERISTICS (Cont.)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX UNIT

UNDERVOLTAGE-LOCKOUT SECTION

Startup Threshold

VTH

7.8

8.4

Minimum Operating Voltage

After Start-Up

VCC(MIN)

7.6

8.2

PULSE-WIDTH MODULATOR SECTION

Maximum Duty Cycle

DC(MAX)

100

Minimum Duty Cycle

DC(MIN)

SUPPLY VOLTAGE

Power Startup Supply Current

ICC+IC

0.3

0.5

Power Operating Supply Current

ICC+IC

VFB and ISENSE at 0V

Power Supply Zener Voltage

ICC =25mA

Notes: 1. Adjust VCC above the start threshold before setting it to 15V.

2. Measured at the trip point of the latch, with VFB at 0V.

3. Measured between ISENSE and COMP, with the input changing from 0V ~ 0.8V.

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