UTCTL494 Datasheet, PDF (1/6 Pages) Unisonic Technologies – VOLTAGE MODE PWM CONTROL CIRCUIT

UTCTL494 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°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
PD
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
°C
°C
°C
note 1: All voltage values, except differential voltages are with respect to the network ground terminal.
note 2:For operation above 25°C free-air temperature, the dissipation derates with 9.2mW/°C.
UTC UNISONIC TECHNOLOGIES CO., LTD. 1
QW-R103-004,A