TEXAS INSTRUMENTS TL594CDPWM Controller CCT, 40V-7V supply, 300 kHz, 40V/200mA out, SOIC-16 TL594 is a pulse-width-modulation control circuit.
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Jul 2, 2021
Una Grantham
#168 ATX POWER SUPPLY CIRCUIT DESCRIPTION TL494 TL594 SMPS PWM CONTROLLER
TEXAS INSTRUMENTS TL594CDPWM Controller CCT, 40V-7V supply, 300 kHz, 40V/200mA out, SOIC-16
TL594 is a pulse-width-modulation control circuit. This article mainly introduce its pinout, circuit, datasheet and other detailed information about Texas Instruments TL594.
TL594CD
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.38606 | $1.39 |
| 10+ | $1.3076 | $13.08 |
| 100+ | $1.23359 | $123.36 |
| 500+ | $1.16376 | $581.88 |
| 1000+ | $1.09789 | $1097.89 |
The TL594 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 systems engineer the flexibility to tailor the power-supply control circuitry to a specific application
The TL594 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 regulator with a precision of 1%, an undervoltage lockout control circuit, and output control circuitry.
The error amplifiers have a common-mode voltage range of –0.3 V to VCC – 2 V. The DTC 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 be used to drive the common circuitry in synchronous multiple-rail power supplies.
The uncommitted output transistors provide either common-emitter or emitter-follower output capability. Each device provides for push-pull or single-ended output operation, with selection by means of the output control function. The architecture of these devices prohibits the possibility of either output being pulsed twice during push-pull operation. The undervoltage lockout control circuit locks the outputs off until the internal circuitry is operational.
The TL594C device is characterized for operation from 0°C to 70°C. The TL594I device is characterized for operation from –40°C to 85°C.
Symbol
Footprint
3D Model
• Complete pulse width modulation control circuit
• On-chip oscillator with master or slave operation
• On-chip error amplifier
• On-chip 5.0 V reference voltage source, 1.5% accuracy
• Adjustable dead time control
• Non-dedicated output transistor with a rated output current of 500 mA source or sink
• Output control for push-pull or single-ended operation
• Undervoltage lockout
• Provide lead-free packaging*
Texas Instruments TL594CD technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments TL594CD.
Texas Instruments TL594CD technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments TL594CD.
| Product Attribute | Attribute Value | |
|---|---|---|
| Lifecycle Status | ACTIVE (Last Updated: 4 days ago) | |
| Factory Lead Time | 6 Weeks | |
| Mounting Type | Surface Mount | |
| Package / Case | 16-SOIC (0.154, 3.90mm Width) | |
| Surface Mount | YES | |
| Number of Pins | 16Pins | |
| Weight | 141.690917mg | |
| Operating Temperature | 0°C~70°C TA | |
| Packaging | Tube | |
| JESD-609 Code | e4 | |
| Pbfree Code | yes | |
| Part Status | Active | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Number of Terminations | 16Terminations | |
| ECCN Code | EAR99 | |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | |
| Terminal Position | DUAL | |
| Terminal Form | GULL WING |
| Product Attribute | Attribute Value | |
|---|---|---|
| Peak Reflow Temperature (Cel) | 260 | |
| Supply Voltage | 15V | |
| Frequency | 300kHz | |
| Base Part Number | TL594 | |
| Function | Step-Up, Step-Down, Step-Up/Step-Down | |
| Number of Outputs | 2Outputs | |
| Output Voltage | 40V | |
| Output Type | Transistor Driver | |
| Operating Supply Voltage | 15V | |
| Input Voltage-Nom | 15V | |
| Analog IC - Other Type | SWITCHING CONTROLLER | |
| Output Configuration | Positive | |
| Output Current | 200mA | |
| Voltage - Supply (Vcc/Vdd) | 7V~40V | |
| Quiescent Current | 12.4mA | |
| Control Features | Dead Time Control, Frequency Control | |
| Input Voltage (Min) | 7V | |
| Topology | Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull |
| Product Attribute | Attribute Value | |
|---|---|---|
| Control Mode | VOLTAGE-MODE | |
| Frequency - Switching | 1kHz~300kHz | |
| Control Technique | PULSE WIDTH MODULATION | |
| Rise Time | 200ns | |
| Synchronous Rectifier | No | |
| Fall Time (Typ) | 45 ns | |
| Max Duty Cycle | 45 % | |
| Duty Cycle (Max) | 97% | |
| Output Phases | 1 | |
| Height | 1.75mm | |
| Length | 9.9mm | |
| Width | 3.91mm | |
| Thickness | 1.58mm | |
| REACH SVHC | No SVHC | |
| RoHS Status | ROHS3 Compliant | |
| Lead Free | Lead Free |
Amplifier-Characteristics Test Circuit
Operational Test Circuit and Waveforms
Texas Instruments (TI) is an American technology company headquartered in Dallas, Texas, which designs and manufactures semiconductors and various integrated circuits, and sells them to electronic designers and manufacturers worldwide. It is one of the top 10 semiconductor companies in global sales. The company focuses on the development of analog chips and embedded processors, which account for more than 80% of its revenue. TI also produces TI digital light processing technology and educational technology products, including calculators, microcontrollers and multi-core processors. As of 2016, the company has 45,000 patents worldwide.
Download datasheets and manufacturer documentation for Texas Instruments TL594CD.
Download datasheets and manufacturer documentation for TL594CD
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