MC34063 查看數據表（PDF） - Contek Microelectronics

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MC34063

DC TO DC CONVERTER CONTROLLER

Contek Microelectronics 

MC34063

LINEAR INTEGRATED CIRCUIT

ABSOLUTE MAXIMUM RATINGS(Ta=25 C )

PARAMETER

SYMBOL

Supply Voltage

Vcc

Comparator input voltage range

Vi(comp)

Switch collector voltage

Vc(sw)

Switch Emitter Voltage

Ve(sw)

Switch collector to emitter voltage

Vce(sw)

Driver collector Voltage

Vc(dr)

Switch current

Isw

VALUE

40

-0.3~+40

40

40

40

40

1.5

UNIT

V

V

V

V

V

V

A

ELECTRICAL CHARACTERISTICS( Ta=25 C )

(Vcc=5.0V,Ta=0~70 C,unless otherwise specified)

PARAMETER

SYMBOL TEST CONDITIONS

Oscillator

Charging Current

Ichg

Vcc=5 to 40V,Ta=25 C

Discharging Current

Idischg Vcc=5 to 40V,Ta=25 C

Oscillator Amplitude

Vosc

Ta=25 C

Discharge to Charge Current Ratio

K

V7=Vcc,Ta=25 C

Current limit Sense Voltage

Vsense

Ichg=Idischg

Ta=25 C

Output Switch

Saturation Voltage 1(note)

Vce(sat)1

Isw=1.0A

Vc(driver)=Vc(sw)

Saturation Voltage 2(note)

Vce(sat)2

Isw=1.0A

Vc(driver)=50mA

DC Current Gain(note)

Gi(DC)

Isw=1.0A

Vce=5.0V,Ta=25 C

Collector Off State Current(note)

C(off)

Vce=40.0V,Ta=25 C

Comparator

Threshold Voltage

Vth

Threshold voltage Line Regulation

Vth

Vcc=3~40V

Input Bias Current

Ibias

Vi=0V

Total Device

Vcc=5~40V

Ct=0.001

Supply Current

Icc

V7=Vcc

Vc>Vth

Pin2=GND

MIN TYP. MAX UNIT

22

31

42

mA

140

190 260

mA

0.5

V

5.2

6.1

7.5

250 300 350 mV

0.95 1.3

V

0.45 0.7

V

50

180

0.01 100

mA

1.21 1.24 1.29

V

2.0

5.0

mV

50

400

nA

2.7

4.0

mA

NOTE: Output switch tests are performed under pulsed conditions to minimize power dissipation.

Contek Microelectronics Co.,Ltd.

2

CONTEK

http://www.contek-ic.com E-mail:sales@contek-ic.com

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