UC3842B datasheet(4/11 Pages) UTC

部件名	UC3842B

功能描述	HIGH PERFORMANCE CURRENT MODE CONTROLLERS

Download	11 Pages

Scroll/Zoom	100%

制造商	UTC [Unisonic Technologies]

网页	http://www.utc-ic.com

标志

4 / 11 page

UC3842B/3843B

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

4 of 11

www.unisonic.com.tw

QW-R103-012.D

ABSOLUTE MAXIMUM RATINGS(Ta=25°C)

PARAMETER

SYMBOL

RATINGS

UNIT

Total Power Supply and Zener Current

(ICC + Iz)

30

mA

Output Current, Source or Sink (note1)

Io

1.0

A

Output Energy (capacitive load per cycle)

W

5.0

μJ

Current Sense and Voltage Feedback Inputs

VIN

-0.3 ~ +5.5

V

Error Amp. Output Sink Current

IO(SINK)

10

mA

DIP-8

1250

mW

Power Dissipation

SOP-8

PD

702

mW

Operating Junction Temperature

TJ

+150

°C

Operating Temperature

TOPR

0 ~ +70

°C

Storage Temperature Range

TSTG

-65 ~ +150

°C

Note Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.

THERMAL DATA

PARAMETER

SYMBOL

RATINGS

UNIT

DIP-8

100

°C/W

Thermal Resistance Junction to Ambient

SOP-8

θJA

178

°C/W

ELECTRICAL CHARACTERISTICS

(0

°C ≤TA≤70°C, VCC=15V [note 2], RT=10k, CT=3.3nF, unless otherwise specified)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

REFERENCE SECTION

Output Voltage

VREF

Io=1.0mA, TJ =25°C

4.9

5.0

5.1

V

Line Regulation

ΔVLINE

VCC=12V ~ 25V

2.0

20

mV

Load Regulation

ΔVLOAD

Io=1.0mA ~ 20mA

3.0

25

mV

Temperature Stability

TS

0.2

mV/

°C

Total Output Variation

VREF

Line, Load, Temperature

4.82

5.18

V

Output Noise Voltage

eN

F=10kHz ~ 10Hz, TJ =25°C

50

uV

Long Term Stability

S

TA=125°C,1000Hrs

5

mV

Output Short Circuit Current

ISC

-30

-85

-180

mA

OSCILLATOR SECTION

Frequency

F

TJ =25°C

Ta=0°C ~ 70°C

TJ =25°C (RT=6.2k,CT=1.0nF)

49

48

225

52

250

55

56

275

kHz

Frequency Change with Voltage

ΔfOSC/ΔV 12 ≤ VCC ≤25V

0.2

1.0

%

Frequency Change with

Temperature

ΔfOSC/ΔT 0°C ≤TA ≤70°C

0.5

%

Oscillator Voltage Swing(Peak to

Peak)

VOSC

1.6

V

Discharge Current

Idischg

TJ =25°C

0

°C ≤TA ≤70°C

7.8

7.6

8.3

8.8

mA

ERROR AMPLIFIER SECTION

Voltage Feedback Input

VFB

Vo=2.5V

2.42

2.50

2.58

V

Input Bias Current

II(BIAS)

VFB=5.0V

-0.1

-2.0

μA

Open Loop Voltage Gain

GVO

2 ≤Vo≤4V

65

90

dB

Unity Gain Bandwidth

GBW

TJ =25°C

0.7

1.0

MHz

Power Supply Rejection Ratio

PSRR

I2V≤Vcc≤25V

60

70

dB

Output Sink Current

ISINK

Vo=1.1V,VFB =2.7V

2.0

12

mA

Output Source Current

ISOURCE

Vo=5.0V,VFB=2.3V

-0.5

-1.0

mA

Output Voltage Swing High State

VOH

VFB=2.3V, RL=15k to GND

5.0

6.2

V

类似零件编号 - UC3842B

制造商	部件名	数据表	功能描述
Motorola, Inc	UC3842B	401Kb / 16P	HIGH PERFORMANCE CURRENT MODE CONTROLLERS
STMicroelectronics	UC3842B	239Kb / 15P	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER
ON Semiconductor	UC3842B	295Kb / 20P	HIGH PERFORMANCE CURRENT MODE CONTROLLERS July, 2011 ??Rev. 15
STMicroelectronics	UC3842B	239Kb / 15P	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER
STMicroelectronics	UC3842B	135Kb / 15P	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

More results

类似说明 - UC3842B

制造商	部件名	数据表	功能描述
Motorola, Inc	UC3842B	401Kb / 16P	HIGH PERFORMANCE CURRENT MODE CONTROLLERS
Freescale Semiconductor...	MC34129EF	444Kb / 16P	high performance current mode controllers
ON Semiconductor	UC3844BNG	399Kb / 19P	High Performance Current Mode Controllers August, 2013 ??Rev. 11
	UC3845BDR2G	387Kb / 19P	High Performance Current Mode Controllers December, 2012 ??Rev. 11
	UC3845BVDG	399Kb / 19P	High Performance Current Mode Controllers August, 2013 ??Rev. 11
	UC3845BVDR2G	399Kb / 19P	High Performance Current Mode Controllers August, 2013 ??Rev. 11
	UC3844BVDG	399Kb / 19P	High Performance Current Mode Controllers August, 2013 ??Rev. 11
Motorola, Inc	UC3844	376Kb / 14P	HIGH PERFORMANCE CURRENT MODE CONTROLLERS
ON Semiconductor	UC3842A	399Kb / 14P	HIGH PERFORMANCE CURRENT MODE CONTROLLERS 1996 REV 1
ON Semiconductor	UC3844	376Kb / 14P	HIGH PERFORMANCE CURRENT MODE CONTROLLERS 1996 REV 1