USB-PD 2.0/USB-PD 3.0/QC 2.0/QC 3.0/QC 4 (+) controller for
Rev. 3 — 21 January 2019
Product data sheet
1 General description
The TEA19051BTK is a highly configurable secondary side SMPS controller that is
available in many factory configured versions. Section 15 gives an overview of the off-
the-shelf available versions of the TEA19051BTK. To inquire about the possibilities of
customer-specific versions, contact your local sales representative.
The TEA19051BTK supports the following protocols:
• USB Type-C v.1.3
• USB power delivery (USB-PD) including programmable power supply (PPS)
• Battery Charging 1.2 (BC1.2)
• Qualcomm® QuickCharge™ QC2.0, QC3.0, and QC4+
A complete smart-charging switch mode power supply (SMPS) can be built in
combination with the TEA193x primary controller and the TEA199x secondary side
synchronous rectifier (SR) controller.
The TEA19051BTK can be provided in several small packages with low pin count. Due
to its small number of external components, a small form factor SMPS can be built that
meets efficiency requirements like CoC Tier-2, EuP Iot6, and DOE v6 with an extremely
no-load power (< 30 mW).
The TEA19051BTK has a high level of digital integration. It incorporates all required
circuits, including a charge pump to drive an external NMOS load switch directly, a USB-
PD physical interface (PHY), and an integrated driver for fast output discharge.
The output voltage and output current are continuously measured and are used to control
the SMPS. Two GPIO pins measure the adapter temperature and the temperature in the
cable/connector. Optionally, the GPIO pins can be used for other features, like supply
(see Table 4). The die temperature of the TEA19051BTK is monitored via an internal
Multiple protections ensure the best-in-class charging safety for the TEA19051BTK.
To ensure correct operation under all conditions, all protections except UVP are
implemented in hardware. The response of these protections can be programmed
as latched or safe restart. Although not recommended, these protections can also be
disabled individually via the settings in the non-volatile multi-time programmable (MTP)
If an output short circuit occurs, the power dissipation in the adapter can be below
For output voltage regulation, current regulation, and protection, only a single
optocoupler is required in the application.
The TEA19051BTK operates in CV mode with a better than 2 % voltage accuracy. In CC
mode, it operates with a better than 2 % full-load current accuracy.