
TL598
PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS053C – FEBRUARY 1988 – REVISED JULY 1999
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
CC
(see Note 1)
Amplifier input voltage, V
I
Collector voltage
Output current (each output), sink or source, I
O
Package thermal impedance,
θ
JA
(see Notes 2 and 3): D package
41 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
V
CC
+ 0.3 V
41 V
250 mA
73
°
C/W
88
°
C/W
260
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N package
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
Storage temperature range, T
stg
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),
θ
JA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature is PD = (TJ(max) – TA)/
θ
JA. 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.
–65
°
C to 150
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
recommended operating conditions
MIN
MAX
UNIT
V
V
V
mA
mA
μ
F
k
kHz
Supply voltage, VCC
Amplifier input voltage, VI
Collector voltage
Output current (each output), sink or source, IO
Current into feedback terminal, IIL
Timing capacitor, CT
Timing resistor, RT
Oscillator frequency, fosc
7
0
40
VCC–2
40
200
0.3
10
500
300
70
125
0.00047
1.8
1
0
Operating free-air temperature TA
O erating free-air tem erature, TA
TL598C
TL598Q
°
C
–40