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參數(shù)資料
| 型號(hào)： | MC34063CD |
| 廠商： | TAEJIN Technology Co., Ltd. |
| 元件分類： | DC/DC變換器 |
| 英文描述： | 0.8A Step Down / Step Up / Inverting DC-DC Converter |
| 中文描述： | 0.8A降壓/升壓/負(fù)輸出DC - DC轉(zhuǎn)換器 |
| 文件頁數(shù)： | 3/9頁 |
| 文件大小： | 169K |
| 代理商： | MC34063CD |
0.8A Step Down / Step Up / Inverting DC-DC Converter
MC34063C
ELECTRICAL CHARACTERISTICS( Refer to the test circuits, V
CC
=5V, T
a
= -40
℃
to 85℃
OSCILLATOR
SYMBOL
Frequency
Charge Current
Discharge Current
Discharge to Charge Current Ratio Pin 7= V
CC
,T
a
= 25
o
C
Current Limit Sense Voltage
V
pin5
= 0 V ,C
T
= 100pF ,T
a
= 25
o
V
CC
= 5 to 40V ,T
a
= 25
o
C
V
CC
= 5 to 40V ,T
a
= 25
o
C
I
chg
= I
dischg
,T
a
= 25
o
C
OUTPUT SWITCH (NOTE 3)
SYMBOL
Saturation Voltage,
Darlington connection
I
SW
= 1A ,R
pin8
= 82 to V
CC
,
Forced β ~ 20
I
SW
= 1A, V
CE
= 5V, T
a
= 25
o
C
V
CE
= 40V
DC Current Gain
Collector Off-State Current
COMPARATOR
SYMBOL
T
a
= 25
o
C
T
a
= T
LOW
to T
HIGH
V
CC
= 3 to 40V
V
IN
= 0V
Threshold Voltage Line Regulation
Input Bias Current
TOTAL DEVICE
SYMBOL
V
CC
= 5 to 40V, C
T
=1
Pin7= V
CC
,V
pin5
>V
th
, Pin2=GND
Remaining pins open
for MC34063C
Notes:
1 Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the devic
These are stress retings only, and functional operation of the device at these or any other conditions beyond thos
indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" f
extended periods may affect device reliability.
2
Maximum package power dissipation limits must be observed.
3 Low duty cycle pulse technique are used during test to maintain juntion temperature as close to ambient
Temperature as possible.
4
If the output switch is driven into hard saturation (non-Darlington configuration) at low switch currents (
≤
300mA) and
high driver currents (
≥
30mA), it may take up to 2.0
for it to come out of saturation. This condition will shorten
the off time at frequencies 30kHz, and is magnified at high temperatures. This condition does not occur with a
Darlington configuration, since the output switch cannot saturate.
Jan. 2007-Rev 1.0
HTC
1.25
V
CE(sat)
V
CE(sat)
V
th
Saturation Voltage (NOTE 4)
I
SW
= 1A ,Pins 1,8 connected
Threshold Voltage
V
V
1.29
5
3
I
CC
Supply Current
TYP.
1.21
PARAMETER
MAX. UNIT
PARAMETER
TEST CONDITIONS
MIN.
2.5
4
I
IB
-20
-400
Reg
line
1.4
1.225
1.275
UNIT
V
TEST CONDITIONS
MIN.
TYP.
MAX.
I
C(off)
0.01
100
h
FE
50
75
0.45
0.8
TYP.
1
MAX. UNIT
1.3
V
PARAMETER
TEST CONDITIONS
MIN.
V
ipk(sense)
250
300
350
I
dischg
/I
chg
5.2
6.5
7.5
I
dischg
180
240
290
I
chg
30
38
45
TYP.
180
MAX. UNIT
190
F
OSC
170
KHz
PARAMETER
TEST CONDITIONS
MIN.
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