TL1453C

DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUIT

SLVS039A – FEBRUARY 1990 – REVISED DECEMBER 1990

2

POST OFFICE BOX 655303

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

41 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Amplifier input voltage

20 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Collector output voltage

51 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Collector output current

21 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous total power dissipation

See Dissipation Rating Table

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–20

°C to 85°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range

– 65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds

260

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

NOTE 1: All voltage values are with respect to network ground terminal.

DISSIPATION RATING TABLE

PACKAGE

TA ≤ 25°C

POWER RATING

DERATING FACTOR

ABOVE TA = 25°C

TA = 85°C

POWER RATING

N

1000 mW

8 mW/

°C

520 mW

NS

725 mW

5.8 mW/

°C

397 mW

recommended operating conditions

MIN

MAX

UNIT

Supply voltage, VCC

3.6

40

V

Amplifier input voltage, VI

1.05

1.45

V

Collector output voltage, VO

50

V

Collector output current

20

mA

Current into feedback terminal

45

µA

Feedback resistor, RF

100

k

Ω

Timing capacitor, CT

150

15000

pF

Timing resistor, RT

5.1

100

k

Ω

Oscillator frequency

1

500

kHz

Operating free-air temperature, TA

–20

85

°C

f = 200 kHz (unless otherwise noted)

reference section

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

Output voltage (pin 16)

IO = 1 mA

2.4

2.5

2.6

V

Output voltage change with temperature

TA = – 20°C to 25°C

– 0.1%

±1%

Output voltage change with temperature

TA = 25°C to 85°C

– 0.2%

±1%

Input regulation

VCC = 3.6 V to 40 V

2

12.5

mV

Output regulation

IO = 0.1 mA to 1 mA

1

7.5

mV

Short-circuit output current

VO = 0

3

10

30

mA

† All typical values are at TA = 25°C.