UCC27222

Name: UCC27222
Brand: TI
SKU: UCC27222
Price: 2.458 USD

アクティブ

高効率、予測可能、同期整流降圧ドライバ

ご注文はこちら

データシート

document-pdfAcrobat High-Efficiency Predictive Synchronous Buck Driver データシート (Rev. B) (英語)

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新規 UCC27302A

アクティブ

5V UVLO、イネーブル、インターロック搭載、120V、4A、ハーフブリッジドライバ More recent driver with integrated bootstrap diode, higher voltage rating, input interlock and smaller package options

UCC27222

アクティブ

データシート

ご注文はこちら

製品詳細

Bootstrap supply voltage (max) (V)

30

Power switch

MOSFET

Input supply voltage (min) (V)

5

Input supply voltage (max) (V)

20

Peak output current (A)

3

Operating temperature range (°C)

-40 to 105

Undervoltage lockout (typ) (V)

4

Rating

Catalog

Propagation delay time (µs)

0.06

Rise time (ns)

17

Fall time (ns)

17

Iq (mA)

4.7

Input threshold

TTL

Channel input logic

TTL

Switch node voltage (V)

-0.3

Features

Dead time control, Soft switching, Synchronous Rectification

Driver configuration

Inverting, Noninverting

Bootstrap supply voltage (max) (V)

30

Power switch

MOSFET

Input supply voltage (min) (V)

5

Input supply voltage (max) (V)

20

Peak output current (A)

3

Operating temperature range (°C)

-40 to 105

Undervoltage lockout (typ) (V)

4

Rating

Catalog

Propagation delay time (µs)

0.06

Rise time (ns)

17

Fall time (ns)

17

Iq (mA)

4.7

Input threshold

TTL

Channel input logic

TTL

Switch node voltage (V)

-0.3

Features

Dead time control, Soft switching, Synchronous Rectification

Driver configuration

Inverting, Noninverting

HTSSOP (PWP)

14

32 mm² 5 x 6.4

Maximizes Efficiency by Minimizing Body-Diode Conduction and Reverse Recovery Losses
Transparent Synchronous Buck Gate Drive Operation From the Single Ended PWM Input Signal
12-V or 5-V Input Operation
3.3-V Input Operation With Availability of 12-V Bus Bias
High-Side and Low-Side ±3-A Dual Drivers
On-Board 6.5-V Gate Drive Regulator
±3.3-A TrueDrive™ Gate Drives for High Current Delivery at MOSFET Miller Thresholds
Automatically Adjusts for Changing Operating Conditions
Thermally Enhanced 14-Pins PowerPAD™ HTSSOP Package Minimizes Board Area and Junction Temperature Rise
APPLICATIONS
- Non-Isolated Single or Multi-phased DC-to-DC Converters for Processor Power, General Computer, Telecom and Datacom Applications

Predictive Gate Drive™ and PowerPAD™ are trademarks of Texas Instruments Incorporated.

Maximizes Efficiency by Minimizing Body-Diode Conduction and Reverse Recovery Losses
Transparent Synchronous Buck Gate Drive Operation From the Single Ended PWM Input Signal
12-V or 5-V Input Operation
3.3-V Input Operation With Availability of 12-V Bus Bias
High-Side and Low-Side ±3-A Dual Drivers
On-Board 6.5-V Gate Drive Regulator
±3.3-A TrueDrive™ Gate Drives for High Current Delivery at MOSFET Miller Thresholds
Automatically Adjusts for Changing Operating Conditions
Thermally Enhanced 14-Pins PowerPAD™ HTSSOP Package Minimizes Board Area and Junction Temperature Rise
APPLICATIONS
- Non-Isolated Single or Multi-phased DC-to-DC Converters for Processor Power, General Computer, Telecom and Datacom Applications

Predictive Gate Drive™ and PowerPAD™ are trademarks of Texas Instruments Incorporated.

The UCC27221 and UCC27222 are high-speed synchronous buck drivers for today’s high-efficiency, lower-output voltage designs. Using Predictive Gate Drive™ (PGD) control technology, these drivers reduce diode conduction and reverse recovery losses in the synchronous rectifier MOSFET(s). The UCC27221 has an inverted PWM input while the UCC27222 has a non-inverting PWM input.

Predictive Gate Drive™ technology uses control loops which are stabilized internally and are therefore transparent to the user. These loops use no external components, so no additional design is needed to take advantage of the higher efficiency of these drivers.

This closed loop feedback system detects body-diode conduction, and adjusts deadtime delays to minimize the conduction time interval. This virtually eliminates body-diode conduction while adjusting for temperature, load- dependent delays, and for different MOSFETs. Precise gate timing at the nanosecond level reduces the reverse recovery time of the synchronous rectifier MOSFET body-diode, reducing reverse recovery losses seen in the main (high-side) MOSFET. The lower junction temperature in the low-side MOSFET increases product reliability. Since the power dissipation is minimized, a higher switching frequency can also be used, allowing for smaller component sizes.

The UCC27221 and UCC27222 are offered in the thermally enhanced 14-pin PowerPAD package with 2°C/W _jc.

The UCC27221 and UCC27222 are high-speed synchronous buck drivers for today’s high-efficiency, lower-output voltage designs. Using Predictive Gate Drive™ (PGD) control technology, these drivers reduce diode conduction and reverse recovery losses in the synchronous rectifier MOSFET(s). The UCC27221 has an inverted PWM input while the UCC27222 has a non-inverting PWM input.

Predictive Gate Drive™ technology uses control loops which are stabilized internally and are therefore transparent to the user. These loops use no external components, so no additional design is needed to take advantage of the higher efficiency of these drivers.

This closed loop feedback system detects body-diode conduction, and adjusts deadtime delays to minimize the conduction time interval. This virtually eliminates body-diode conduction while adjusting for temperature, load- dependent delays, and for different MOSFETs. Precise gate timing at the nanosecond level reduces the reverse recovery time of the synchronous rectifier MOSFET body-diode, reducing reverse recovery losses seen in the main (high-side) MOSFET. The lower junction temperature in the low-side MOSFET increases product reliability. Since the power dissipation is minimized, a higher switching frequency can also be used, allowing for smaller component sizes.

The UCC27221 and UCC27222 are offered in the thermally enhanced 14-pin PowerPAD package with 2°C/W _jc.

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