TPS40345

Name: TPS40345
Brand: TI
SKU: TPS40345
Price: 0.726 USD

AKTIV

Synchroner Abwärtsregler mit 3 V bis 20 V, 25 A für kostenoptimierte Anwendungen

Jetzt bestellen

Datenblatt

document-pdfAcrobat TPS40345 3-V to 20-V Input Synchronous Buck Controller datasheet (Englisch) PDF | HTML

TPS40345

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Vin (min) (V)

3

Vin (max) (V)

20

Iout (max) (A)

25

Operating temperature range (°C)

-20 to 85

Control mode

Voltage mode

Rating

Catalog

Vout (min) (V)

0.6

Vout (max) (V)

18

Iq (typ) (A)

0.0025

Duty cycle (max) (%)

90

Vin (min) (V)

3

Vin (max) (V)

20

Iout (max) (A)

25

Operating temperature range (°C)

-20 to 85

Control mode

Voltage mode

Rating

Catalog

Vout (min) (V)

0.6

Vout (max) (V)

18

Iq (typ) (A)

0.0025

Duty cycle (max) (%)

90

VSON (DRC)

10

9 mm² 3 x 3

Input Voltage Range From 3 V to 20 V
600-kHz Switching Frequency
High- and Low-Side FET R_DS(on) Current Sensing
Programmable Thermally Compensated OCP Levels
Programmable Soft-Start
600-mV, 1.3% Reference Voltage
Voltage Feed-Forward Compensation
Supports Prebiased Output
Frequency Spread Spectrum
Thermal Shutdown Protection at 145°C
10-Pin 3-mm × 3-mm VSON Package With Ground Connection to Thermal Pad

Input Voltage Range From 3 V to 20 V
600-kHz Switching Frequency
High- and Low-Side FET R_DS(on) Current Sensing
Programmable Thermally Compensated OCP Levels
Programmable Soft-Start
600-mV, 1.3% Reference Voltage
Voltage Feed-Forward Compensation
Supports Prebiased Output
Frequency Spread Spectrum
Thermal Shutdown Protection at 145°C
10-Pin 3-mm × 3-mm VSON Package With Ground Connection to Thermal Pad

The TPS40345 is a synchronous buck controller that operates from 3-V to 20-V input and which can be used in cost-optimized applications. The controller implements a voltage-mode control architecture with input-voltage feed-forward compensation that responds instantly to a change in input voltage. The switching frequency is fixed at 600 kHz.

The frequency spread spectrum (FSS) feature adds to the switching frequency, significantly reducing the peak EMI noise and making it much easier to comply with EMI standards.

The TPS40345 offers design with a variety of user-programmable functions, including soft-start, overcurrent protection (OCP) levels, and loop compensation.

OCP level may be programmed by a single external resistor connected from the LDRV pin to circuit ground. During initial power on, the TPS40345 enters a calibration cycle, measures the voltage at the LDRV pin, and sets an internal OCP voltage level. During operation, the programmed OCP voltage level is compared to the voltage drop across the low-side FET when it is on to determine whether there is an overcurrent condition. The TPS40345 then enters a shutdown and restart cycle until the fault is removed.

The TPS40345 is a synchronous buck controller that operates from 3-V to 20-V input and which can be used in cost-optimized applications. The controller implements a voltage-mode control architecture with input-voltage feed-forward compensation that responds instantly to a change in input voltage. The switching frequency is fixed at 600 kHz.

The frequency spread spectrum (FSS) feature adds to the switching frequency, significantly reducing the peak EMI noise and making it much easier to comply with EMI standards.

The TPS40345 offers design with a variety of user-programmable functions, including soft-start, overcurrent protection (OCP) levels, and loop compensation.

OCP level may be programmed by a single external resistor connected from the LDRV pin to circuit ground. During initial power on, the TPS40345 enters a calibration cycle, measures the voltage at the LDRV pin, and sets an internal OCP voltage level. During operation, the programmed OCP voltage level is compared to the voltage drop across the low-side FET when it is on to determine whether there is an overcurrent condition. The TPS40345 then enters a shutdown and restart cycle until the fault is removed.

open-in-new

Andere AC/DC & DC/DC controllers (external FET) suchen

Herunterladen Video mit Transkript ansehen Video

Alle anzeigen 3

	Typ	Titel		Datum
*	Data sheet	TPS40345 3-V to 20-V Input Synchronous Buck Controller datasheet	PDF \| HTML	07 Dez 2017
	User guide	TPS40345 Buck Controller Evaluation Module User's Guide (Rev. A)	PDF \| HTML	03 Jan 2022
	Analog Design Journal	Maximizing power density and thermal performance in power-module designs		12 Dez 2018

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

TPS40345EVM-353 — TPS40345, 8 V bis 14 V Eingang, und 1,2 V-Ausgang, synchroner Abwärts-Controller – Evaluierungsmodul

The TPS40345EVM-353 evaluation module (EVM) is a synchronous buck converter providing a fixed 1.2-V output at up to 20A from a 12-V input bus.

Benutzerhandbuch: PDF | HTML

Nicht verfügbar auf TI.com

Simulationsmodell

TPS40345 PSpice Transient Model

SLUM612.ZIP (85 KB) - PSpice Model

Herunterladen

Simulationsmodell

TPS40345 Unencrypted PSpice Transient Model

SLUM611.ZIP (9 KB) - PSpice Model

Herunterladen

Gehäuse	Pins	Herunterladen
VSON (DRC)	10	Optionen anzeigen

Es gelten die allgemeinen Geschäftsbedingungen von TI für Evaluierungsartikel.

TPS40345

Synchroner Abwärtsregler mit 3 V bis 20 V, 25 A für kostenoptimierte Anwendungen

TPS40345

Produktdetails

Ähnliche Produkte, die für Sie interessant sein könnten

Ähnliche Funktionalität wie verglichener Baustein

Technische Dokumentation

Design und Entwicklung

TPS40345EVM-353 — TPS40345, 8 V bis 14 V Eingang, und 1,2 V-Ausgang, synchroner Abwärts-Controller – Evaluierungsmodul

TPS40345 PSpice Transient Model

TPS40345 Unencrypted PSpice Transient Model

Bestellen & Qualität

Support und Schulungen

TI E2E™-Foren mit technischem Support von TI-Ingenieuren

Videoreihe

Videos