TL594CDR2G DC-DC Power Conversion by ON Semiconductor

PWM Controller


The TL594 PWM Controller 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 PWM Controller 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 1.5%, 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 TL594CD, CN, CDTB are characterized for operation from -40C to 85C.

Where to Buy

Prices starting from US$0.40

Distributor Stock
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RS
from US$0.43
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Chip One Stop
from US$0.40
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Newark Electronics
from US$0.50
1,411
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element14
from US$0.46
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Farnell
from US$0.45
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Future Electronics
from US$0.42
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Avnet America
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RS Americas
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Avnet Asia
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Features

PWM Buck Controller Configuration
Variable Frequency Operation (up to 300 KHz)
Complete Pulse Width Modulation Control Circuitry
On-Chip Oscillator with Master or Slave Operation
On-Chip Error Amplifiers
On-Chip 5.0 V Reference, 1.5% Accuracy
Adjustable Deadtime Control
Uncommitted Output Transistors Rated to 500 mA Source or Sink
Output Control for Push-Pull or Single-Ended Operation
Undervoltage Lockout
Pb-Free Packages are Available
Benefits
Simple to use in buck configuration
Optimize system size and efficiency
Applications
Off-line power supply
VPA (Vehicle Power Adapter)
End Products
Buck converter
LED Lighting

Specifications

Description TL594
Compliance Pb-free
Topology Flyback Forward Push-Pull
Phases 1
Control Mode Voltage Mode
VCC Min (V) 6
VCC Max (V) 42
fSW Typ (kHz) 40
Package Type SOIC-16

Alternative Descriptions

Pwm Controller, 40Khz, 40V, Soic-16 | Newark Electronics
PWM CONTROLLER, 40KHZ, 40V, SOIC-16 | element14
Precision Pulse Width Modulation SOIC16W | RS
TL594 Series 40 V 18 mA 50 % Surface Mount Precision Switchmode - SOIC-16 | Future Electronics
Voltage Mode PWM Controller 500mA 16-Pin SOIC T/R | Avnet America
TL594CDR2G, PWM Controller 300 kHz, 7 - 40 V, 16-Pin SOIC | ON Semiconductor TL594CDR2G | RS Americas


Frequently Asked Questions

Where can I find additional details, specifications and documents for a TL594CDR2G?

Additional datasheets, footprints and schematics for TL594CDR2G are listed on our Part Details page. You can also find images and similar parts to TL594CDR2G on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for TL594CDR2G on our Product Comparison page. Access via the 'View Pricing & Stock' button to view TL594CDR2G price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does TL594CDR2G fall under?

The TL594CDR2G is listed under Power Management > DC-DC Power Conversion > Controllers.

Can I view similar or alternative parts?

You can view similar parts to TL594CDR2G when available in the Controllers range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the TL594CDR2G you can contact the distributor directly for product support, shipping queries etc.

Is the TL594CDR2G RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by ON Semiconductor.

Which authorised distributors for TL594CDR2G have stock available?

Authorised distributors including Chip One Stop, Newark Electronics, element14, Farnell and RS have stock available or on a lead time for TL594CDR2G.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for TL594CDR2G often in real-time on the comparison pages.

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