| Part Number | TL494 Datasheet |
|---|---|
| Manufacturer | Motorola Semiconductor |
| Overview |
Order this document by TL494/D
SWITCHMODE™ Pulse Width Modulation Control Circuit
The TL494 is a fixed frequency, pulse width modulation control circuit designed primarily for SWITCHMODE power supply.
mplifier Input Voltage Range
Power Dissipation @ TA ≤ 45°C Thermal Resistance,
Junction *to *Ambient VIR PD RθJA *0.3 to +42 1000 80 V mW °C/W Operating Junction Temperature TJ Storage Temperature Range Tstg Operating Ambient Temperature Range TA TL494C TL494I 125 °C *55 to +125 °C °C 0 t. |
TL494 Datasheet and Specifications PDF
The TL494 is a PULSE WIDTH MODULATION CONTROLLER.
| Part Number | TL494 Datasheet |
|---|---|
| Description | Pulse-Width-Modulation Controller |
| Manufacturer | Texas Instruments |
| Overview |
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.
* 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 Provide. |
| Part Number | TL494 Datasheet |
|---|---|
| Description | SMPS Controller |
| Manufacturer | Fairchild Semiconductor |
| Overview |
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 comparat.
* 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 . |
| Part Number | TL494 Datasheet |
|---|---|
| Description | Pulse-Width-Modulation Controller |
| Manufacturer | HTC KOREA |
| Overview |
The TL494 incorporates on a single monolithic chip all the functions required in the construction of a pulse width modulation control circuit. Designed primarily for power supply control, this device.
* 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 Pulse at Either Output * Variable Dead-Time Provides Control over Total Range * Internal Regulator Provides. |