TLC598 datasheet(3/10 Pages) TI | PULSE-WIDTH-MODULATION CONTROL CIRCUITS

3 page

TL598

PULSE-WIDTH-MODULATION CONTROL CIRCUITS

SLVS053C – FEBRUARY 1988 – REVISED JULY 1999

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

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

Supply voltage, VCC (see Note 1)

41 V

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

Amplifier input voltage, VI

VCC + 0.3 V

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

Collector voltage

41 V

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

Output current (each output), sink or source, IO

250 mA

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

Package thermal impedance,

θJA (see Notes 2 and 3): D package

°C/W

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

N package

°C/W

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

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

260

°C

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

Storage temperature range, Tstg

–65

°C to 150°C

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

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES:

1. All voltage values, except differential voltages, are with respect to the signal ground terminal.

2. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable

ambient temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can impact reliability.

3. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace

length of zero.

recommended operating conditions

MIN

MAX

UNIT

Supply voltage, VCC

Amplifier input voltage, VI

VCC–2

Collector voltage

Output current (each output), sink or source, IO

200

Current into feedback terminal, IIL

0.3

Timing capacitor, CT

0.00047

µF

Timing resistor, RT

1.8

500

Ω

Oscillator frequency, fosc

300

kHz

Operating free-air temperature TA

TL598C

°C

O erating free-air tem erature, TA

TL598Q

–40

125

°C

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