Datasheet Texas Instruments TL1451A
| Manufacturer | Texas Instruments |
| Series | TL1451A |
Dual Channel Controller with Wide Input Voltage Range
Datasheets
Dual Pulse-Width-Modulation Control Circuits datasheet
PDF, 1.2 Mb, Revision: E, File published: Mar 13, 2002
Extract from the document
Prices
Status
| TL1451ACD | TL1451ACDBLE | TL1451ACDBR | TL1451ACDBRG4 | TL1451ACDG4 | TL1451ACDR | TL1451ACDRG4 | TL1451ACN | TL1451ACNSR | TL1451ACPW | TL1451ACPWG4 | TL1451ACPWLE | TL1451ACPWR | TL1451ACPWRG4 | TL1451AQD | TL1451AQDR | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | NRND (Not recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Obsolete (Manufacturer has discontinued the production of the device) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | No | Yes | Yes | No | Yes | No | Yes | Yes | Yes | Yes | No | Yes | No | No | Yes | No |
Packaging
| TL1451ACD | TL1451ACDBLE | TL1451ACDBR | TL1451ACDBRG4 | TL1451ACDG4 | TL1451ACDR | TL1451ACDRG4 | TL1451ACN | TL1451ACNSR | TL1451ACPW | TL1451ACPWG4 | TL1451ACPWLE | TL1451ACPWR | TL1451ACPWRG4 | TL1451AQD | TL1451AQDR | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| Pin | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
| Package Type | D | DB | DB | DB | D | D | D | N | NS | PW | PW | PW | PW | PW | D | D |
| Industry STD Term | SOIC | SSOP | SSOP | SSOP | SOIC | SOIC | SOIC | PDIP | SOP | TSSOP | TSSOP | TSSOP | TSSOP | TSSOP | SOIC | SOIC |
| JEDEC Code | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDIP-T | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G |
| Package QTY | 40 | 2000 | 2000 | 40 | 2500 | 2500 | 25 | 2000 | 90 | 90 | 2000 | 2000 | 40 | 2500 | ||
| Carrier | TUBE | LARGE T&R | LARGE T&R | TUBE | LARGE T&R | LARGE T&R | TUBE | LARGE T&R | TUBE | TUBE | LARGE T&R | LARGE T&R | TUBE | LARGE T&R | ||
| Device Marking | TL1451AC | T1451A | T1451A | TL1451AC | TL1451AC | TL1451AC | TL1451ACN | TL1451A | T1451A | T1451A | T1451A | T1451A | TL1451AQ | TL1451AQ | ||
| Width (mm) | 3.91 | 5.3 | 5.3 | 5.3 | 3.91 | 3.91 | 3.91 | 6.35 | 5.3 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 3.91 | 3.91 |
| Length (mm) | 9.9 | 6.2 | 6.2 | 6.2 | 9.9 | 9.9 | 9.9 | 19.3 | 10.3 | 5 | 5 | 5 | 5 | 5 | 9.9 | 9.9 |
| Thickness (mm) | 1.58 | 1.95 | 1.95 | 1.95 | 1.58 | 1.58 | 1.58 | 3.9 | 1.95 | 1 | 1 | 1 | 1 | 1 | 1.58 | 1.58 |
| Pitch (mm) | 1.27 | .65 | .65 | .65 | 1.27 | 1.27 | 1.27 | 2.54 | 1.27 | .65 | .65 | .65 | .65 | .65 | 1.27 | 1.27 |
| Max Height (mm) | 1.75 | 2 | 2 | 2 | 1.75 | 1.75 | 1.75 | 5.08 | 2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.75 | 1.75 |
| Mechanical Data | Download | Download | Download | Download | Download | Download | Download | Download | Download | Download | Download | Download | Download | Download | Download | Download |
Parametrics
| Parameters / Models | TL1451ACD | TL1451ACDBLE | TL1451ACDBR | TL1451ACDBRG4 | TL1451ACDG4 | TL1451ACDR | TL1451ACDRG4 | TL1451ACN | TL1451ACNSR | TL1451ACPW | TL1451ACPWG4 | TL1451ACPWLE | TL1451ACPWR | TL1451ACPWRG4 | TL1451AQD | TL1451AQDR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Approx. Price (US$) | 0.61 | 1ku | 0.61 | 1ku | ||||||||||||||
| Duty Cycle(Max), % | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | ||
| Duty Cycle(Max)(%) | 100 | 100 | ||||||||||||||
| Iout(Max), A | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | ||
| Iout(Max)(A) | 3 | 3 | ||||||||||||||
| Iq(Typ), mA | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | ||
| Iq(Typ)(mA) | 1.7 | 1.7 | ||||||||||||||
| Operating Temperature Range, C | -20 to 85,-40 to 125 | -20 to 85,-40 to 125 | -20 to 85,-40 to 125 | -20 to 85,-40 to 125 | -20 to 85,-40 to 125 | -20 to 85,-40 to 125 | -20 to 85,-40 to 125 | -20 to 85,-40 to 125 | -20 to 85,-40 to 125 | -20 to 85,-40 to 125 | -20 to 85,-40 to 125 | -20 to 85,-40 to 125 | -20 to 85,-40 to 125 | -20 to 85,-40 to 125 | ||
| Operating Temperature Range(C) | -20 to 85 -40 to 125 | -20 to 85 -40 to 125 | ||||||||||||||
| Package Group | SOIC | SSOP | SSOP | SSOP | SOIC | SOIC | SOIC | PDIP | SO | TSSOP | TSSOP | TSSOP | TSSOP | TSSOP | SOIC | SOIC |
| Rating | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
| Special Features | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | ||
| Switch Current Limit(Min), A | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | ||
| Switch Current Limit(Min)(A) | 3 | 3 | ||||||||||||||
| Switching Frequency(Max), kHz | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | ||
| Switching Frequency(Max)(kHz) | 500 | 500 | ||||||||||||||
| Switching Frequency(Min), kHz | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | ||
| Switching Frequency(Min)(kHz) | 50 | 50 | ||||||||||||||
| Topology | Boost,Buck,Flyback,Forward,Inverting,SEPIC | Boost Buck Flyback Forward Inverting SEPIC | Boost,Buck,Flyback,Forward,Inverting,SEPIC | Boost,Buck,Flyback,Forward,Inverting,SEPIC | Boost,Buck,Flyback,Forward,Inverting,SEPIC | Boost,Buck,Flyback,Forward,Inverting,SEPIC | Boost,Buck,Flyback,Forward,Inverting,SEPIC | Boost,Buck,Flyback,Forward,Inverting,SEPIC | Boost,Buck,Flyback,Forward,Inverting,SEPIC | Boost,Buck,Flyback,Forward,Inverting,SEPIC | Boost,Buck,Flyback,Forward,Inverting,SEPIC | Buck/Boost | Boost,Buck,Flyback,Forward,Inverting,SEPIC | Boost,Buck,Flyback,Forward,Inverting,SEPIC | Boost,Buck,Flyback,Forward,Inverting,SEPIC | Boost,Buck,Flyback,Forward,Inverting,SEPIC |
| Type | Controller | Controller | Controller | Controller | Controller | Controller | Controller | Controller | Controller | Controller | Controller | Controller | Controller | Controller | Controller | Controller |
| Vin(Max), V | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | ||
| Vin(Max)(V) | 50 | 50 | ||||||||||||||
| Vin(Min), V | 3.6 | 3.6 | 3.6 | 3.6 | 3.6 | 3.6 | 3.6 | 3.6 | 3.6 | 3.6 | 3.6 | 3.6 | 3.6 | 3.6 | ||
| Vin(Min)(V) | 3.6 | 3.6 | ||||||||||||||
| Vout(Max), V | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | ||
| Vout(Max)(V) | 50 | 50 | ||||||||||||||
| Vout(Min), V | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | ||
| Vout(Min)(V) | 1 | 1 |
Eco Plan
| TL1451ACD | TL1451ACDBLE | TL1451ACDBR | TL1451ACDBRG4 | TL1451ACDG4 | TL1451ACDR | TL1451ACDRG4 | TL1451ACN | TL1451ACNSR | TL1451ACPW | TL1451ACPWG4 | TL1451ACPWLE | TL1451ACPWR | TL1451ACPWRG4 | TL1451AQD | TL1451AQDR | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RoHS | Compliant | Not Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Not Compliant | Compliant | Compliant | Compliant | Compliant |
| Pb Free | No | Yes | No |
Application Notes
- Understanding Buck Power Stages In Switchmode Power SuppliesPDF, 173 Kb, File published: Mar 4, 1999
A switching power supply consists of the power stage and the control circuit. The power stage performs the basic power conversion from the input voltage to the output voltage and includes switches and the output filter. This report addresses the buck power stage only and does not cover control circuits. Detailed steady-state and small-signal analysis of the buck power stage operating in continuous - Understanding Boost Power Stages In Switchmode Power SuppliesPDF, 149 Kb, File published: Mar 4, 1999
A switching power supply consists of the power stage and the control circuit. The power stage performs the basic power conversion from the input voltage to the output voltage and includes switches and the output filter. This report addresses the boost power stage only and does not cover control circuits. The report includes detailed steady-stage and small-signal analysis of the boost power stage o - Basic Calculation of a Boost Converter's Power Stage (Rev. C)PDF, 186 Kb, Revision: C, File published: Jan 8, 2014
This application note gives the equations to calculate the power stage of a boost converter built with an IC with integrated switch and operating in continuous conduction mode. It is not intended to give details on the functionality of a boost converter (see Reference 1) or how to compensate a converter. See the references at the end of this document if more detail is needed. - Understanding Buck-Boost Power Stages in Switchmode Power Supplies (Rev. A)PDF, 363 Kb, Revision: A, File published: May 28, 2002
Model Line
Series: TL1451A (16)
Manufacturer's Classification
- Semiconductors> Power Management> Non-isolated DC/DC Switching Regulator> Buck/Boost, Inverting or Split-Rail> Buck/Boost or Inverting Controller (External Switch)
