MC34063ABN 데이터 시트보기 (PDF) - STMicroelectronics
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MC34063ABN Datasheet PDF : 23 Pages
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Electrical characteristics
MC34063AB - MC34063AC - MC34063EB - MC34063EC
4
Electrical characteristics
(Refer to the test circuits, VCC = 5 V, TA = TLOW to THIGH, unless otherwise specified, see
Note 2)
Table 5. Oscillator
Symbol
Parameter
Test conditions
fOSC
Frequency
ICHG
Charge current
IDISCHG Discharge current
IDISCHG/ICHG
Discharge to charge
current ratio
VPIN5 = 0V, CT = 1 nF, TA = 25°C
VCC = 5 to 40V, TA = 25°C
VCC = 5 to 40V, TA = 25°C
PIN 7 = VCC, TA = 25°C
VIPK(sense) Current limit sense voltage ICHG = IDISCHG, TA = 25°C
Min. Typ. Max. Unit
24
33
42 kHz
24
33
42
µA
140 200 260 µA
5.2
6.2
7.5
µA
250 300 350 mV
Table 6.
Symbol
Output switch
Parameter
Test conditions
VCE(sat)
Saturation voltage, darlington
connection
ISW = 1 A, PIN 7, 8 connected
VCE(sat) Saturation voltage
ISW = 1 A, RPIN8 = 82 Ω to VCC
Forced β ~ 20
hFE
IC(off)
DC current gain
Collector off-state current
ISW = 1 A,VCE = 5 V, TA = 25°C
VCE = 40 V
Min. Typ. Max. Unit
1
1.3
V
0.45 0.7
V
50 120
0.01 100 µA
Table 7.
Symbol
Comparator
Parameter
VTH Threshold voltage
Regline
IIB
Threshold voltage line
regulation
Input bias current
Test conditions
TA = 25°C
TA = TLOW to THIGH
VCC = 3 to 40 V
VIN = 0 V
Min. Typ. Max. Unit
1.225 1.25 1.275
V
1.21
1.29
1
5
mV
-5 -400 nA
6/23
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