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IC manufacturers Qorvo

Qorvo ACT4751M | Demoboard ACT4751EVK1-101

40 V, 4.0 A, USB Fast Charger Power IC for Automotive

Overview

TopologyBuck Converter
Input voltage4-40 V
Output 124 V / 4 A
IC revision1.1

Description

Qorvo's ACT4751M is an automotive grade, programmable voltage regulator with bias supply rails for microcontrollers or USB PD controllers. It supports a wide input voltage range from 4.5 to 40 V and uses a synchronous step-down (buck) DC-to-DC architecture. It integrates both the high side and low side MOSFETS. These 50 mOhm on-resistance transistors enable high efficiency to reduce power losses.The product's main buck converter can be dynamically programed to an output voltage between 3 and 24 V in 12.5 mV steps via the I2C interface or analog feedback. It also can dynamically program output current between 0 and 4 A in 256 steps via the I2C interface in a constant-current (CC) operation mode. The main buck operates in a proprietary current mode control that supports external clock syncing for switching frequencies between 450 kHz and 2.25 MHz with features of 100% duty, out-of-AM radio frequency and spread-spectrum operation.ACT4751M is a perfect solution for USB Fast Charger applications based on the Power Delivery (PD) 3.0 and Programmable Power Supply (PPS) applications. The product integrates a 5 V / 350 mA mini-buck converter and a 20 mA AUX LDO of 0.9 V to 4.0 V to simplify application system designs. These rails can power up a controller and the 1.5 W VCONN line in active USB-C cables.ACT4751M provides an I2C port supporting fast-mode plus (Fm+, 1 MHz) with configurable address and also provides a full set of protections including UVLO, over-voltage input voltage lockout, OVP, UVP (Hiccup/Latch-off), OCP and TSD.ACT4751M is available in an AEC-Q100 grade, step-cut, side-wall-plating, 32-pin 5mm x 5mm QFN package with a power optimized footprint and exposed pad for improved thermal performance.

Features

  • AEC-Q100 Grade 1: -40 to +125°C
  • CISPR 25 Class 3: PASS
  • Certified USB Fast Charger, Reference Designs
  • Qualcomm Certified, Quick Charger 4+ Designs
  • 4.5 to 40 V operational input voltage
  • Programmable output voltage by I2C from 3 to 24 V in 12.5 mV steps
  • Programmable output current limit from 0 to 4 A in 256 step resolution
  • Automotive, side-wall-plating, 5 mm x 5 mm QFN package

More information

Products

Order Code Data­sheet Downloads Product seriesApplicationPCB/Cable/PanelModularityWire SectionCVR
(V (DC))
Endurance
(h)
Operating TemperatureIRIPPLE
(mA)
ILeak
(µA)
DF
(%)
Pitch
(mm)
Ø D
(mm)
L
(mm)
Technical ReferenceTol. CSizeRISOCeramic TypeW
(mm)
H
(mm)
Fl
(mm)
RDC
(mΩ)
L
(µH)
ISAT
(A)
fres
(MHz)
MountPins
(mm)
RowsGenderTypeIR
(A)
PackagingColor Samples
691214110002SSPEC
6 files WR-TBL Series 2141S - 3.50 mm Horizontal Entry Modular w. Rising Cage Clamp Rising Cage Clamp PCB Yes 30 to 16 (AWG) 0.05 to 1.31 (mm²) -30 °C up to +120 °C 3.5 7 2 Horizontal 10 Box Green
74439358047SPEC
9 files WE-XHMI SMT Power Inductor -40 °C up to +125 °C 8.8 8080 8.3 7.8 8.65 4.7 20.5 25 SMT 2 9.5
860010674014SPEC
7 files WCAP-ATG8 Aluminum Electrolytic Capacitors100 µF 50 2000 -40 °C up to +85 °C 286 50 10 3.5 8 11.5 ATBE115101M050DSPA7B000 ±20%
885012006051SPEC
7 files WCAP-CSGP MLCCs 50 V(DC)10 pF 50 1.6 NP00603100J050DFCT10000 ±5% 060310 GΩ NP0 Class I 0.8 0.8 0.4
885012206071SPEC
7 files WCAP-CSGP MLCCs 25 V(DC)100 nF 25 -55 °C up to +125 °C 3.5 1.6 X7R0603104K025DFCT10000 ±10% 06035 GΩ X7R Class II 0.8 0.8 0.4
885012206080SPEC
7 files WCAP-CSGP MLCCs 50 V(DC)330 pF 50 2.5 1.6 X7R0603331K050DFCT10000 ±10% 060310 GΩ X7R Class II 0.8 0.8 0.4
885012106010SPEC
7 files WCAP-CSGP MLCCs 10 V(DC)1 µF 10 10 1.6 X5R0603105M010DFCT10000 ±20% 06030.1 GΩ X5R Class II 0.8 0.8 0.4
885012207103SPEC
7 files WCAP-CSGP MLCCs 50 V(DC)1 µF 50 10 2 X7R0805105K050DFCT10000 ±10% 08050.1 GΩ X7R Class II 1.25 1.25 0.5
885012107010SPEC
7 files WCAP-CSGP MLCCs 10 V(DC)10 µF 10 10 2 X5R0805106M010DFCT10000 ±20% 08050.01 GΩ X5R Class II 1.25 1.25 0.5
60910213421SPEC
3 files WR-PHD 2.54 mm Multi-Jumper Jumper with Test Point -40 °C up to +125 °C 2.54 5.081000 MΩ 2 Jumper 3 Bag Black
61300111121SPEC
6 files WR-PHD 2.54 mm THT Pin Header 2.54 2.541000 MΩ THT 1 Single Pin Header Straight 3 Bag
61300211121SPEC
6 files WR-PHD 2.54 mm THT Pin Header 2.54 5.081000 MΩ THT 2 Single Pin Header Straight 3 Bag
61300411121SPEC
6 files WR-PHD 2.54 mm THT Pin Header 2.54 10.161000 MΩ THT 4 Single Pin Header Straight 3 Bag
Samples
Order Code Data­sheet Downloads Product seriesApplicationPCB/Cable/PanelModularityWire SectionCVR
(V (DC))
Endurance
(h)
Operating TemperatureIRIPPLE
(mA)
ILeak
(µA)
DF
(%)
Pitch
(mm)
Ø D
(mm)
L
(mm)
Technical ReferenceTol. CSizeRISOCeramic TypeW
(mm)
H
(mm)
Fl
(mm)
RDC
(mΩ)
L
(µH)
ISAT
(A)
fres
(MHz)
MountPins
(mm)
RowsGenderTypeIR
(A)
PackagingColor Samples