Replacing Hynetek HUS332D-U30DA with HP9610BD6 in 5A USB-C Cables

A 5A USB-C charging cable in production carries Hynetek's HUS332D-U30DA in its BOM, and the cable maker is evaluating a change, for the three usual reasons: shortage, lead time, or cost. Before changing anything, settle what the two parts are, which parameters line up, and what has to move. This comparison follows Hypower's official material and Hynetek's datasheet page by page. The conclusion: the HP9610BD6 is a positional replacement for the HUS332D-U30DA, and it adds a power tier the original did not have.

Why a 5A cable must carry an E-Marker

The E-Marker is the cable's electronic label, soldered to the small board inside the USB-C plug. Its job is to tell the charger what the cable can actually carry, so the charger sets power accordingly. Under the Type-C specification, a USB 2.0 cable rated at 3A does not need one. Cables above 3A, and 5A cables with USB 3.0 or faster data capability, must have one built in. Without the chip, or with it unprogrammed, a 5A cable negotiates at 3A and the user sees a 240W cable delivering 60W, or a fast-charge cable that never enters fast charge. The cable is not broken; its identity never got reported.

Power evolution made this small chip more important. USB PD 3.1 lifted delivery from 100W to 240W through EPR, the extended power range, which moves the voltage ceiling from the 20V tier to 48V while rated current stays at 5A. USB4 2.0 raised data rates to 80Gbps. Both power and data hang on the identity the E-Marker reports, because the charger and the host use it to decide whether this cable can enter EPR and whether it can carry full bandwidth. A 240W cable also needs the EPR capability bit written during programming; miss it and the host negotiates at the 100W tier.

HP9610BD6 core parameters

Parameter alignment

Five items align exactly: supply range, programming count, integration, temperature range, and package outline. The protocol is newer on the HP9610BD6, since PD 3.2 is the current revision, and EPR is the addition. In the HUS332D family, EPR lives in the U31DA grade while the U30DA ships as PD3.0, so replacing with the HP9610BD6 lets one part cover both the 100W and 240W cable types, and the BOM no longer splits by grade.

Three things the change requires

1. Check the pin definitions one by one. Both parts in these grades are DFN2x2-6L, but pin assignment must be checked against each vendor's datasheet before soldering directly. If they differ, revise the small board routing. The plug board is only a dozen square millimeters, so one wrong pin means re-spinning the whole board. Do this before sampling, not after.

2. Rewrite the programming content for the HP9610BD6 flow. Cable information, meaning vendor ID, wire gauge, current capability, and the EPR capability bit, is written to OTP following Hypower's sequence. The HP9610BD6 supports CC-line programming and works with third-party programmers, so run the existing fixture script once on the new part number and confirm both handshake and readback.

3. Verify by reading back the first article. After programming, use the PD Discover Identity command to read the vendor ID and cable capability bits, then plug into a host to confirm 5A fast charging, so the batch does not generate complaints about a cable that still delivers 60W. Pull three to five units from the same batch to cover programming variation.

What HP9610BD6 adds

Protocol and power in one step. PD 3.2 with Type-C R2.3 is the current combination, and EPR 50V/5A is native, so a 240W cable does not need a separate EPR grade. It remains backward compatible with 100W cable designs, which means one part number across a product line and one part number in purchasing.

Nothing external on the plug board. The Ra resistors at both ends, which PD requires as cable termination, and the VCONN supply diodes are all inside the chip. The plug board needs no external components, and the blocking diode prevents reverse feed when two VCONN ports power each other. On a board measured in square millimeters, zero external parts simplifies both placement and the bill of materials.

Little change at the programming station. It is still 3x OTP with third-party programmer support, so the existing HUS332D production approach carries over, and CC-line programming puts no extra demand on the plug board structure. Three programming passes also leave room for error: a wrong parameter can be corrected twice before a batch is scrapped.

Domestic supply. Hypower Microelectronics in Wuxi focuses on charging and protocol chips and holds USB-IF certification TID 13777. Sample and volume pacing and price room are more controllable through a domestic manufacturer, which suits cable makers with price-sensitive, steady-volume programs.

Supply and cost

The HP9610BD6 comes through the domestic manufacturer's channel with samples and volume available directly. For a cable maker, the E-Marker is a small share of the cable cost, but volumes are large and usage is fixed, so the savings accumulate over a year. Lead time, pricing, and volume pacing are open for discussion.

Q: Does a USB 2.0 3A cable need an E-Marker? A: No. Cables above 3A, and cables with USB 3.0 or faster data capability, must have one.

Q: Do we need to buy new programming software? A: The HP9610BD6 works with third-party programmers. Confirm the fixture script on a first article; the equipment does not change.

Q: After the change, do 240W and 100W cables need separate part numbers? A: No. EPR 50V/5A is native, so 100W and 240W cable types share one part.

To sample the HP9610BD6, or to get a complete datasheet for pin and programming checks, Shenzhen Manduic Technology Co., Ltd. can help. We are an authorized distributor of Hypower and handle samples, volume supply, and technical support together.

For samples, datasheets, adaptation support, or technical questions, reach us through the channels below:

Tel: 150-1290-5940

Email: sales@manduic.com

Website: www.manduic.com