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

Ω

Timing Capacitor

CT

0.0047

0.001

10

µF

Oscillator Frequency

fosc

1.0

40

200

kHz

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.