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Updated at 17/06/2025 10:30:15(UTC+8)

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Description

The TL494CDR is a Pulse Width Modulation (PWM) Controller on a single chip. Designed primarily for power-supply control, this device offers the flexibility to tailor the power-supply control circuitry to a specific application. The TL494 device contains two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator, a pulse-steering control flip-flop, a 5V, 5% precision regulator and output-control circuits. The error amplifiers exhibit a common-mode voltage range from -0.3V to VCC - 2V. The dead-time control comparator has a fixed offset that provides approximately 5% dead time. The on-chip oscillator can be bypassed by terminating RT to the reference output and providing a sawtooth input to CT, or it can drive the common circuits in synchronous multiple-rail power supplies. The uncommitted output transistors provide either common-emitter or emitter-follower output capability.
Output control selects single-ended or push-pull operation
Internal circuitry prohibits double pulse at either output
Variable dead time provides control over total range
Internal regulator provides a stable 5V Reference supply with 5% Tolerance
Circuit architecture allows easy synchronization
Green product and no Sb/Br

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TL494CDR Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Surface Mount
Number of Pins	16 Pin
Case/Package	SOIC-16
Frequency	300 kHz
Supply Voltage (DC)	7.00V (min)
Number of Outputs	2 Output
Output Voltage	40 V
Output Current	200 mA
Number of Positions	16 Position
Quiescent Current	7.50 mA
Number of Regulated Outputs	2 Output
Rise Time	100 ns
Switching Frequency	1kHz ~ 300kHz
Topology	Buck, Boost, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull
Duty Cycle	45 %
Maximum Duty Cycle	45 %
Fall Time	40 ns
Operating Temperature (Max)	70 ℃
Operating Temperature (Min)	0 ℃
Supply Voltage	7V ~ 40V
Supply Voltage (Max)	40 V
Supply Voltage (Min)	7 V
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Size-Length	9.9 mm
Size-Width	3.91 mm
Size-Height	1.58 mm
Operating Temperature	0℃ ~ 70℃ (TA)
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
ECCN Code	EAR99

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