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UTCTL494 Datasheet

  • UTCTL494

  • VOLTAGE MODE PWM CONTROL CIRCUIT

  • 6頁

  • UTC-IC

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UTC TL494
LINEAR INTEGRATED CIRCUIT
VOLTAGE MODE PWM CONTROL
CIRCUIT
DESCRIPTION
The UTC TL494 incorporates all the functions required in
the construction of a pulse-width modulation switching circuit.
Designed primarily for switching power supply control or DC-
DC convectors, it offers the systems engineer the flexibility to
tailor control circuitry to its own application.
SOP-16
FEATURES
*Complete PWM power control circuitry
*Uncommitted outputs for 200 mA sink or source current
*Output control selects single ended or push pull operation
*Internal circuitry prohibits double pulses over total range
*Easy synchronization
DIP-16
ABSOLUTE MAXIMUM RATINGS
(Unless otherwise noted all is over operating free air temperature
range)
PARAMETER
Supply Voltage(note 1)
Amplifier Input Voltage
Collector Output Voltage
Collector Output Current
Continuous Total Dissipation at(or for below)
25擄C Free Air Temperature(note 2)
Operating Temperature Range
Storage Temperature Range
Lead Temperature 1.6mm from Case for 60
Sec.
SYMBOL
V
CC
V
I
V
O
I
CO
P
D
T
opr
T
stg
T
case
VALUE
41
V
CC
+0.3
41
250
1000
0 TO 70
-65 TO 150
300
UNIT
V
V
V
mA
mW
擄C
擄C
擄C
note 1: All voltage values, except differential voltages are with respect to the network ground terminal.
note 2:For operation above 25擄C free-air temperature, the dissipation derates with 9.2mW/擄C.
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R103-004,A

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