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MC34063AN Datasheet(PDF) 3 Page - HTC Korea TAEJIN Technology Co.

Part No. MC34063AN
Description  DC-DC Converter Control Circuits
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Manufacturer  HTC [HTC Korea TAEJIN Technology Co.]
Direct Link  http://www.htckorea.co.kr
Logo HTC - HTC Korea TAEJIN Technology Co.

MC34063AN Datasheet(HTML) 3 Page - HTC Korea TAEJIN Technology Co.

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DC-DC Converter Control Circuits
MC34063A
ELECTRICAL CHARACTERISTICS (Refer to the test circuits, V
CC=5V, Ta=TLOW to THIGH, unless
otherwise specified, see note 2)
OSCILLATOR
Frequency
Vpin5= 0 V ,CT= 1nF ,Ta= 25
oC
Charge Current
VCC= 5 to 40V ,Ta= 25
oC
Discharge Current
VCC= 5 to 40V ,Ta= 25
oC
Discharge to Charge Current Ratio
Pin 7= VCC ,Ta= 25
oC
Current Limit Sense Voltage
Ichg= Idischg ,Ta= 25
oC
OUTPUT SWITCH
Saturation Voltage,
ISW= 1A ,Pins 1,8 connected
Darlington connection
Saturation Voltage
ISW= 1A ,Rpin8= 82Ω to VCC,
Forced β ~ 20
DC Current Gain
ISW= 1A, VCE= 5V, Ta= 25
oC
Collector Off-State Current
VCE= 40V
COMPARATOR
Threshold Voltage
Ta= 25
oC
Ta= TLOW to THIGH
Threshold Voltage Line Regulation
VCC= 3 to 40V
Input Bias Current
VIN= 0V
TOTAL DEVICE
Supply Current
VCC= 5 to 40V, CT=1㎋
Pin7= VCC ,Vpin5>Vth, Pin2=GND
Remaining pins open
for MC34063A
Notes:
1) Maximum package power dissipation limit must be observed.
2) TLOW= '-30℃, THIGH= '+125℃
3) If Darlington configuration is not used, care must be taken to avoid deep saturation of output switch.
The resulting switch-off time may be adversely affected.
In a Darlington configuration the following output driver condition is suggested:
Forced β of output current switch= ICOUTPUT/(ICDRIVER-1㎃
*)≥10
* Current less due to a built in 1KΩ antileakage resistor.
May. 2009 - Rev. 1.2
HTC
TYP. MAX. UNIT
KHz
SYMBOL
PARAMETER
FOSC
24
33
42
TEST CONDITIONS
MIN.
Ichg
24
35
42
Idischg
140
220
260
Vipk(sense)
250
300
350
Idischg/Ichg
5.2
6.5
7.5
UNIT
VCE(sat)
1.0
1.3
V
SYMBOL
PARAMETER
TEST CONDITIONS
MIN.
0.45
0.7
TYP. MAX.
0.01
100
V
hFE
50
75
VCE(sat)
SYMBOL
PARAMETER
TEST CONDITIONS
MIN.
TYP. MAX. UNIT
IC(off)
Vth
1.225
1.25
1.275
15
V
1.21
1.29
V
TEST CONDITIONS
MIN.
IIB
-5
-400
Regline
TYP. MAX. UNIT
ICC
1.4
4
SYMBOL
PARAMETER
3 −


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