TL494_101 Datasheet, PDF (3/19 Pages) Texas Instruments – PULSE-WIDTH-MODULATION CONTROL CIRCUITS

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TL494
PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS074E – JANUARY 1983 – REVISED FEBRUARY 2005
Absolute Maximum Ratings⁽¹⁾
over operating free-air temperature range (unless otherwise noted)
V_CC
Supply voltage⁽²⁾
V_I
Amplifier input voltage
V_O
Collector output voltage
I_O
Collector output current
D package
DB package
θ_JA
Package thermal impedance⁽³⁾⁽⁴⁾
N package
NS package
PW package
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
T_stg
Storage temperature range
MIN
MAX UNIT
41 V
V_CC + 0.3
V
41 V
250 mA
73
82
67 °C/W
64
108
260 °C
–65
150 °C
(1) 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.
(2) All voltages are with respect to the network ground terminal.
(3) Maximum power disipation is a function of T_J(max), θ_JA, and T_A. The maximum allowable power dissipation at any allowable ambient
temperatire is P_D = (T_J(max) – T_A)/θ_JA. Operating at the absolute maximum T_J of 150°C can affect reliability.
(4) The package thermal impedance is calculated in accordance with JESD 51-7.
Recommended Operating Conditions
V_CC
Supply voltage
V_I
Amplifier input voltage
V_O
Collector output voltage
Collector output current (each transistor)
Current into feedback terminal
f_OSC
Oscillator frequency
C_T
Timing capacitor
R_T
Timing resistor
T_A
Operating free-air temperature
TL494C
TL494I
MIN
MAX UNIT
7
40 V
–0.3
V_CC – 2
V
40 V
200 mA
0.3 mA
1
300 kHz
0.47
10000 nF
1.8
500 kΩ
0
70
°C
–40
85
3