MC33063A View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
Manufacturer
MC33063A Datasheet PDF : 12 Pages
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MC34063A MC33063A
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Power Supply Voltage
Comparator Input Voltage Range
Switch Collector Voltage
Switch Emitter Voltage (VPin 1 = 40 V)
Switch Collector to Emitter Voltage
Driver Collector Voltage
Driver Collector Current (Note 1)
Switch Current
Power Dissipation and Thermal Characteristics
Plastic Package, P, P1 Suffix
TA = 25°C
Thermal Resistance
SOIC Package, D Suffix
TA = 25°C
Thermal Resistance
Operating Junction Temperature
Operating Ambient Temperature Range
MC34063A
MC33063AV
MC33063A
Storage Temperature Range
VCC
40
Vdc
VIR
– 0.3 to + 40 Vdc
VC(switch)
40
Vdc
VE(switch)
40
Vdc
VCE(switch)
40
Vdc
VC(driver)
40
Vdc
IC(driver)
100
mA
ISW
1.5
A
PD
RθJA
PD
RθJA
TJ
TA
Tstg
1.25
W
100
°C/W
625
160
+150
0 to +70
–40 to +125
– 40 to + 85
– 65 to +150
W
°C/W
°C
°C
°C
NOTES: 1. Maximum package power dissipation limits must be observed.
2. ESD data available upon request.
ELECTRICAL CHARACTERISTICS (VCC = 5.0 V, TA = Tlow to Thigh [Note 3], unless otherwise specified.)
Characteristics
Symbol
Min
Typ
Max Unit
OSCILLATOR
Frequency (VPin 5 = 0 V, CT = 1.0 nF, TA = 25°C)
fosc
24
33
42
kHz
Charge Current (VCC = 5.0 V to 40 V, TA = 25°C)
Ichg
24
35
42
µA
Discharge Current (VCC = 5.0 V to 40 V, TA = 25°C)
Idischg
140
220
260
µA
Discharge to Charge Current Ratio (Pin 7 to VCC, TA = 25°C)
Idischg/Ichg
5.2
6.5
7.5
–
Current Limit Sense Voltage (Ichg = Idischg, TA = 25°C)
Vipk(sense)
250
300
350
mV
OUTPUT SWITCH (Note 4)
Saturation Voltage, Darlington Connection (Note 5)
( ISW = 1.0 A, Pins 1, 8 connected)
VCE(sat)
–
1.0
1.3
V
] Saturation Voltage, Darlington Connection
(ISW = 1.0 A, RPin 8 = 82 Ω to VCC, Forced β 20)
VCE(sat)
–
0.45
0.7
V
DC Current Gain (ISW = 1.0 A, VCE = 5.0 V, TA = 25°C)
hFE
50
75
–
–
Collector Off–State Current (VCE = 40 V)
IC(off)
–
0.01
100
µA
NOTES: 3. Tlow = 0°C for MC34063A, – 40°C for MC33063A, AV
Thigh = +70°C for MC34063A, + 85°C for MC33063A, +125°C for MC33063AV
4. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible.
5. If the output switch is driven into hard saturation (non–Darlington configuration) at low switch currents (≤ 300 mA) and high driver currents (≥ 30 mA),
it may take up to 2.0 µs for it to come out of saturation. This condition will shorten the off time at frequencies ≥ 30 kHz, and is magnified at high
temperatures. This condition does not occur with a Darlington configuration, since the output switch cannot saturate. If a non–Darlington
configuration is used, the following output drive condition is recommended:
w Forced
b
of
output
switch
:
IC
IC output
driver – 7.0
mA
*
10
*The 100 Ω resistor in the emitter of the driver device requires about 7.0 mA before the output switch conducts.
2
MOTOROLA ANALOG IC DEVICE DATA
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