Lenovo ThinkPad 65W PD Adapter Review and Teardown

Today, we will show the review and teardown process of the Lenovo ThinkPad PD 65W PD adapter.

Appearance

This PD power adapter features a common rectangular design, and it comes with an AC input socket and a Type-C cable.

Manufacturer: Delta Electronics, Inc.
Product Model: ADLX65YCC2A
Power Rating: 65W
The nameplate indicates it supports four voltage output specifications: 5V/2A, 9V/2A, 15V/3A, and 20V/3.25A.

Test

The ChargerLAB POWER-Z KM001 tester shows that this adapter supports four voltage output modes: 5V 3A, 9V 3A, 15V 3A, and 20V 3.2A. The test results are slightly different from the data on its nameplate.
The Type-C port is tested by EBD via the Legendary PD detector.

Under 5V voltage, the maximum output current is 3.4A, and the power is 16.4W, which exceeds its standard current and power rate. The voltage is slightly lower, affected by cable length.

Under 9V voltage, the maximum current is 3.31A, and the power is 28.8W, which exceeds the standard current and power rate.

Under 15V voltage, the max output current is 3.31A, and the power is 28.8W, which exceeds not only the standard current and power but also the measurement range of the EBD 35W.

Under 20V voltage, the max output current and power rate also exceed the measurement range of the EBD 35W.

Teardown

The adapter casing is relatively thick. First, we attempted to pry open the casing with metal tools. Since the two metal tools were bent upon contacting the metal shielding, we had to switch to using an electric grinder.

The metal shield gets damaged by the metal tools.

A large amount of white thermal conductivity glue is used inside the adapter.

The switching transformer has many thermal conductivity glues. These glues help dissipate heat, relying on the metal shield.

Many components on the PCB are covered with white glue.

The AC power input socket has pure copper pins.

It is a black Conquer slow-blow fuse, T3.15A 250V CQ MST.

This is a Korean-made CMPP safety capacitor.

There is a rectifier bridge and a primary COS on the large heat dissipation chip.

The unit on the small heat dissipation chip is the output Schottky diode.

The main filter capacitor is from Nichicon. 120μF 420V.

It is the rectifier bridge. U3K8 GULF, 3A 700V.

It is a Toshiba field effect transistor (FET), TK11A65D. 11A 650V. TO220F MOS field effect transistor switch.

PWM SPPE. Rubycon 100V 10μF.

Small heat dissipation chip

Schottky rectifier G40100CTW is from LITEON, 40A 100V.

It is an output filter capacitor from the Japanese NCC. 25V 1000μF.

PWM chip

PD controller

Optocoupler (OC)

PD output MOSFET, Allergro AO4447A -15A/ -13V SOP8

The PD output has three core wires, including the red and black power wires and the blue PD signal wire.

The casing is made of polycarbonate. This material has good durability and flexibility.

Summary

In the laptop field, PD power has gradually occupied the market comprehensively and benefited from the compatibility with smart portable devices. The Lenovo ThinkPad ADLX65YCC2A adapter, jointly manufactured by Lite-On and Teclast, has good workmanship, high quality, and a reasonable price, providing users with more options.