MC34063A MC33063A
MAXIMUM RATINGS
Rating
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
Symbol
VCC
VIR
VC(switch)
VE(switch)
VCE(switch)
VC(driver)
IC(driver)
ISW
Value
40
– 0.3 to + 40
40
40
40
40
100
1.5
Unit
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
mA
A
PD
R
θJA
PD
R
θJA
TJ
TA
1.25
100
625
160
+150
0 to +70
–40 to +125
– 40 to + 85
W
°C/W
W
°C/W
°C
°C
Tstg
– 65 to +150
°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
OSCILLATOR
Frequency (VPin 5 = 0 V, CT = 1.0 nF, TA = 25°C)
Charge Current (VCC = 5.0 V to 40 V, TA = 25°C)
Discharge Current (VCC = 5.0 V to 40 V, TA = 25°C)
Discharge to Charge Current Ratio (Pin 7 to VCC, TA = 25°C)
Current Limit Sense Voltage (Ichg = Idischg, TA = 25°C)
OUTPUT SWITCH
(Note 4)
Saturation Voltage, Darlington Connection (Note 5)
( ISW = 1.0 A, Pins 1, 8 connected)
Saturation Voltage, Darlington Connection
(ISW = 1.0 A, RPin 8 = 82
Ω
to VCC, Forced
β
VCE(sat)
VCE(sat)
hFE
IC(off)
–
–
50
–
1.0
0.45
75
0.01
1.3
0.7
–
100
V
V
–
µA
fosc
Ichg
Idischg
Idischg/Ichg
Vipk(sense)
24
24
140
5.2
250
33
35
220
6.5
300
42
42
260
7.5
350
kHz
µA
µA
–
mV
Symbol
Min
Typ
Max
Unit
]
20)
DC Current Gain (ISW = 1.0 A, VCE = 5.0 V, TA = 25°C)
Collector Off–State Current (VCE = 40 V)
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:
IC output
Forced
b
of output switch :
10
IC driver – 7.0 mA *
*The 100
Ω
resistor in the emitter of the driver device requires about 7.0 mA before the output switch conducts.
w
2
MOTOROLA ANALOG IC DEVICE DATA
ONSEMI [ ON SEMICONDUCTOR ]
