Car Chargers (Vehicle Power Adapters)

Active-Semi's high power automotive DC/DC converters offer high efficiency switched-mode power supply (SMPS) circuits to reduce power loss and heat while charging your iPad® and/or iPhone®. Limiting power loss in the car charger enables ultra-slim form factors for single or dual-port chargers. Our low-BOM architecture is compatible with surface-mount components, enabling sleek micro-charger designs.

Active-Semi's automotive high-power DC/DC products are capable of charging two iPad® devices at 2.1A simultaneously, at a charging rate equivalent to a wall-plug power adapter. Our solutions achieve the strict "Made for iPad®" performance standards for power accessories such as over-voltage 40V pulse protection and strict over-current-protection (OCP) and constant-current constant-voltage (CC/CV) requirements.

Suitable for one-piece or two-piece car chargers, our solutions include cable/cord compensation circuitry that can be used to lower the cable cost while meeting electrical specifications at the device side charging connector.

The application circuit below shows a conventional ACT4513 enabled single-output charger. ACT4513 is a wide input voltage, high efficiency ActiveCC™ step-down DC/DC converter that operates in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode; providing up to 2A output current at 210kHz switching frequency. ActiveCC™ is a patent-pending control scheme to achieve highest accuracy sensorless constant current control, eliminating the conventional expensive current sense resistor. ActiveCC™ is featured throughout the ACT45xx product family.


Key Features & Benefits

  • Meet MFi specs
  • High efficiency
  • Excellent EMI performance
  • Reduced BOM for simplified PCB design
  • Sophisticated Protection for Over Current (OCP), Over Voltage (OVP), Over Temperature (OTP) and Short Circuit Protections (SCP)

Product Selection Table


PART NUMBER

TOPOLOGY

FEATURES

INPUT VOLTAGE

MAX OUTPUT CURRENT

FREQ

PACKAGE

STATUS

DATASHEET

APP NOTE/ USER GUIDE

ASYNC BUCK

SYNC BUCK

CABLE COMPENSATION

SENSORLESS CC CONTROL

ACTIVECHARGE™
Qualcomm® QC2.0/3.0

ACT4524

New

 

4.5-36V

3.5A

125kHz

SOP-8EP

Production

Image

Image

ACT4525

New

 

6-36V

3.5A

125kHz

SOP-8EP

Production

Image

Image

ACT4526

New

 

6-36V

3.0A

250kHz/125kHz

SOP-8EP

Production

Image

Image

ACT4527

New

 

6-36V

3.0A

125kHz

SOP-8EP

Production

Image

Image

ACT4528

New

 

6-36V

3.0A

125kHz

SOP-8EP

Production

Image

Image

ACT4529

New

 

6-36V

3.0A

125kHz

SOP-8EP

Production

Image

Image

ACT4529M
(AEC-Q100)

New

 

6-36V

3.0A

125kHz

SOP-8EP

Production
Automotive Qualified

Image

Image

ACT4501

 

 

10-30V

1.25A

125kHz

SOP-8

Production

Image

Image

ACT4523

 

 

10-40V

3.0A

225kHz

SOP-8EP

Production

Image

Image

ACT4533

 

 

10-40V

3.0A

125kHz

SOP-8EP

Production

Image

Image

ACT4533A

 

 

10-40V

3.5A

125kHz

SOP-8EP

Production

Image

Image

ACT4533B

 

 

10-40V

3.5A

125kHz

SOP-8EP

Production

Image

Image

ACT4533C

 

 

10-38V

3.5A

125kHz

SOP-8EP

Production

Image

Image


Learn more about applying our innovative power solutions for vehicle power adapters:


Car Charger (CLA) Applications


Part Number

Output Voltages

Output Currents

USB Auto
Detection

QC 2.0/3.0

USB Type-C

USB-PD

Separated OCP

Datasheet

Application Note/ User Guide

ACT4533B

5V

2.4A/3.4A

 

 

 

Single Port

Image

Image

ACT4525

5V

2.4A + 1A

 

 

Yes
Dual Port

Image

Image

ACT4526

5V/9V/12V

3A

 

 

Single Port

Image

Image

ACT4527

5V/9V/12V

3A

 

 

 

Single Port

Image

Image

ACT4528

5V/9V/12V

3A

 

Single Port

Image

Image

ACT4529-0001

5V/9V/12V

3A

 

 

Single Port

Image

Image

ACT4529-0010

5V/9V/12V

3A

 

 

Single Port

Image

Image

ACT4529-0011

5V/9V/12V

3A

 

Single Port

Image

Image


USB Type-C and USB-PD Evaluation Kits

For IC samples and EVKs, please contact sales@active-semi.com


ACT4525 Type C + Type A Dual Port   New

ACT4527 USB-PD
5V/12V/3A


QC 2.0/3.0 Evaluation Kits



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