| Customization: | Available |
|---|---|
| Conductive Type: | Unipolar Integrated Circuit |
| Integration: | ULSI |
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TL494CDR: Voltage Mode PWM Controller 40V 200mA 16-Pin SOIC T/R - Tape and Reel
Package: SOIC-16
Mfr. Part#: TL494CDR
Mfr.: TI
Datasheet: 
(e-mail or chat us for PDF file)
ROHS Status:
Quality: 100% Original
Warranty: 180 days
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Product Status
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Active
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Output Type
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Transistor Driver
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Function
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Step-Up, Step-Down, Step-Up/Step-Down
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Output Configuration
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Positive
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Topology
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Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull
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Number of Outputs
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2
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Output Phases
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1
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Voltage - Supply (Vcc/Vdd)
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7V ~ 40V
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Frequency - Switching
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1kHz ~ 300kHz
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Duty Cycle (Max)
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45%
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Synchronous Rectifier
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No
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Clock Sync
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No
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Serial Interfaces
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-
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Control Features
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Dead Time Control, Frequency Control
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Operating Temperature
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0°C ~ 70°C (TA)
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Mounting Type
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Surface Mount
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Package / Case
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16-SOIC (0.154", 3.90mm Width)
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Supplier Device Package
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16-SOIC
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Base Product Number
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TL494
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The TL494 device incorporates all the functions required in the construction of a pulse-width-modulation (PWM) control circuit 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 5-V, 5%-precision regulator, and output-control circuits.
The error amplifiers exhibit a common-mode voltage range from -0.3 V to VCC - 2 V. 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. The TL494 device provides for push-pull or single-ended output operation, which can be selected through the output-control function. The architecture of this device prohibits the possibility of either output being pulsed twice during push-pull operation.
The TL494C device is characterized for operation from 0°C to 70°C. The TL494I device is characterized for operation from -40°C to 85°C.
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