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TL494CN Datasheet(PDF) 2 Page - Motorola, Inc

Part # TL494CN
Description  SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT
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Manufacturer  MOTOROLA [Motorola, Inc]
Direct Link  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

TL494CN Datasheet(HTML) 2 Page - Motorola, Inc

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TL494
2
MOTOROLA ANALOG IC DEVICE DATA
RECOMMENDED OPERATING CONDITIONS
Characteristics
Symbol
Min
Typ
Max
Unit
Power Supply Voltage
VCC
7.0
15
40
V
Collector Output Voltage
VC1, VC2
30
40
V
Collector Output Current (Each transistor)
IC1, IC2
200
mA
Amplified Input Voltage
Vin
–0.3
VCC – 2.0
V
Current Into Feedback Terminal
lfb
0.3
mA
Reference Output Current
lref
10
mA
Timing Resistor
RT
1.8
30
500
k
Timing Capacitor
CT
0.0047
0.001
10
µF
Oscillator Frequency
fosc
1.0
40
200
kHz
ELECTRICAL CHARACTERISTICS (VCC = 15 V, CT = 0.01 µF, RT = 12 kΩ, unless otherwise noted.)
For typical values TA = 25°C, for min/max values TA is the operating ambient temperature range that applies, unless otherwise noted.
Characteristics
Symbol
Min
Typ
Max
Unit
REFERENCE SECTION
Reference Voltage (IO = 1.0 mA)
Vref
4.75
5.0
5.25
V
Line Regulation (VCC = 7.0 V to 40 V)
Regline
2.0
25
mV
Load Regulation (IO = 1.0 mA to 10 mA)
Regload
3.0
15
mV
Short Circuit Output Current (Vref = 0 V)
ISC
15
35
75
mA
OUTPUT SECTION
Collector Off–State Current
(VCC = 40 V, VCE = 40 V)
IC(off)
2.0
100
µA
Emitter Off–State Current
VCC = 40 V, VC = 40 V, VE = 0 V)
IE(off)
–100
µA
Collector–Emitter Saturation Voltage (Note 2)
Common–Emitter (VE = 0 V, IC = 200 mA)
Emitter–Follower (VC = 15 V, IE = –200 mA)
Vsat(C)
Vsat(E)
1.1
1.5
1.3
2.5
V
Output Control Pin Current
Low State (VOC ≤ 0.4 V)
High State (VOC = Vref)
IOCL
IOCH
10
0.2
3.5
µA
mA
Output Voltage Rise Time
Common–Emitter (See Figure 12)
Emitter–Follower (See Figure 13)
tr
100
100
200
200
ns
Output Voltage Fall Time
Common–Emitter (See Figure 12)
Emitter–Follower (See Figure 13)
tf
25
40
100
100
ns
NOTE: 2. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible.


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