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TL494 |
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| Part Number | TL494 |
| Manufacturer | Motorola Inc |
| Description | The TL494 is a fixed–frequency pulse width modulation control circuit, incorporating the primary building blocks required for the control of a switching power supply. (See Figure 1.) An internal–linear sawtooth oscillator is frequency– programmable by two external components, RT and CT. The approximate oscillator frequency is determined by: fosc ≈ 1.1 RT • C. |
| Features |
h transistor) (Note 1) Amplifier Input Voltage Range Power Dissipation @ TA ≤ 45°C Thermal Resistance, Junction –to –Ambient Operating Junction Temperature Storage Temperature Range Operating Ambient Temperature Range TL494C TL494I Derating Ambient Temperature NOTE: + Error 1 Amp – + 2 Error Amp – VCC 5.0 V REF Symbol VCC VC1, VC2 IC1, IC2 VIR PD RθJA TJ Tstg TA TL494C 42 42 500 TL494I Unit V V mA V mW °C/W °C °C °C Compen/PWN Comp Input 3 Deadtime Control 4 CT 5 RT 6 ≈ 0.1 V 11 C2 Q2 Ground 7 10 E2 Q1 –0.3 to +42 1000 80 125 –55 to +125 0 to +70 – 25 to +85 C1 8 9 E1 (Top View) . |
| Datasheet |
 TL494 Data Sheet
PDF 197.39KB |
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TL494 |
| Part Number | TL494 |
| Manufacturer | UTC |
| Title | PWM Controller |
| 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. FE. |
| Features | * Complete PWM power control circuitry * Uncommitted outputs for 200mA sink or source current * Output control selects single ended or push pull operation * Internal circuitry prohibits double pulses over total range * Easy synchronization ORDERING INFORMATION Ordering Number Lead Free Halogen Free TL494L-D16-T TL494G-D16-T - TL494G-S16-R - TL494G-P16-R Package DIP-16 SOP-16 TSSOP-16 . |
TL494 |
| Part Number | TL494 |
| Manufacturer | ON Semiconductor |
| Title | Switch mode Pulse Width Modulation Controller |
| Description | Switch mode Pulse Width Modulation Control Circuit TL494, NCV494 The TL494 is a fixed frequency, pulse width modulation control circuit designed primarily for switch mode power supply control. Features • Complete Pulse Width Modulation Control Circuitry • On−Chip Oscillator with Master or Slave Oper. |
| Features |
• Complete Pulse Width Modulation Control Circuitry • On−Chip Oscillator with Master or Slave Operation • On−Chip Error Amplifiers • On−Chip 5.0 V Reference • Adjustable Deadtime Control • Uncommitted Output Transistors Rated to 500 mA Source or Sink • Output Control for Push−Pull or Single−Ended Operation • Undervoltage Lockout • NCV Prefix for Automotive and Other Applications Requiring Site and. |
TL494 |
| Part Number | TL494 |
| Manufacturer | ART CHIP |
| Title | SMPS Controller |
| Description | TL494 SMPS Controller www.artschip.com 1 TL494 SMPS Controller www.artschip.com 2 TL494 SMPS Controller www.artschip.com 3 TL494 SMPS Controller www.artschip.com 4 TL494 SMPS Controller www.artschip.com 5 TL494 SMPS Controller www.artschip.com 6 TL494 SMPS Controller www.artschip.. |
| Features | . |
TL494 |
| Part Number | TL494 |
| Manufacturer | Fairchild Semiconductor |
| Title | SMPS Controller |
| Description | The TL494 is used for the control circuit of the PWM switching regulator. The TL494 consists of 5V reference voltage circuit, two error amplifiers, flip flop, an output control circuit, a PWM comparator, a dead time comparator and an oscillator. This device can be operated in the switching frequency. |
| Features |
• Internal regulator provides a stable 5V reference supply trimmed to 5% • Uncommitted output TR for 200mA sink or source current • Output control for push-pull or single-ended operation • Variable duty cycle by dead time control (pin 4) Complete PWM control circuit • On-chip oscillator with master or slave operation • Internal circuit prohibits double pulse at either output Description The TL494. |
TL494 |
| Part Number | TL494 |
| Manufacturer | HTC Korea |
| Title | Pulse-Width-Modulation Controller |
| Description | The TL494 incorporate on a single monolithic chip all the functions required in the construction of a pulse-width-modulation control, these devices offer the systems engineer the flexibility to tailor ORDERING INFORMATION Device Package the power supply control circuitry to his application. Th. |
| 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 Pulse at Either Output ● Variable Dead-Time Provides Control over Total Range ● Internal Regulator Provides a Stable 5-V Reference Supply,5% ● Circuit Architecture Allows Easy Synchronization ● Moisture Sen. |
TL494 |
| Part Number | TL494 |
| Manufacturer | Texas Instruments |
| Title | Pulse-Width-Modulation Controller |
| Description | The TL494 device incorporates all the functions required in the construction of a pulse-widthmodulation (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. |
| 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 Pulse at Either Output • Variable Dead Time Provides Control Over Total Range • Internal Regulator Provides a Stable 5-V Reference Supply With 5% Tolerance • Circuit Architecture Allows Easy Synchronization. |
| No. | Parte # | Fabricante | Descripción | Hoja de Datos |
|---|---|---|---|---|
| 1 | TL494B |
ON Semiconductor |
Switch mode Pulse Width Modulation Controller |
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| 2 | TL494BDG |
ON Semiconductor |
Switch mode Pulse Width Modulation Controller |
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| 3 | TL494C |
ON Semiconductor |
Switch mode Pulse Width Modulation Controller |
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| 4 | TL494C |
Texas Instruments |
Pulse-Width-Modulation Controller |
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| 5 | TL494CD |
Texas Instruments |
Pulse-Width-Modulation Controller |
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| 6 | TL494CDG |
ON Semiconductor |
Switch mode Pulse Width Modulation Controller |
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| 7 | TL494CN |
ON Semiconductor |
Switch mode Pulse Width Modulation Controller |
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| 8 | TL494CN |
Texas Instruments |
Pulse-Width-Modulation Controller |
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| 9 | TL494D |
HTC |
Pulse-Width-Modulation Controller |
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| 10 | TL494I |
ON Semiconductor |
Switch mode Pulse Width Modulation Controller |
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Desde 2024. D4U Semiconductor.
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