Table 2. Receiver Module Default Settings; Figure 4. Receiver Module Wiring - ST STEVAL-ISB68WA User Manual

Additional control signals and programmable general-purpose I/O pins are available at the STWLC68JRH, but
they are not used in the module to keep the reference solution as simple as possible. The STWLC68JRH chip can
handle up to 400 kHz speed over the I2C bus.
retrieved from OTP memory at power-up. Values eventually changed via I2C registers are lost if the receiver
module is removed from the transmitter, unless VOUT or VRECT rails are externally kept above 4V (e.g. as per
Figure 7b).
Nominal chip idle current consumption
Output current threshold for deeper ASK
Over-Temperature protection
Over-Voltage protection (VRECT rail)
Over-Current protection
UM2693 - Rev 1
Figure 4.
Table 2.
Parameter
Output voltage
Minimum VRECT
Dummy load
modulation
GPIO0 pin function
INT pin function
Receiver module wiring
Table 2 summarizes the default STWLC68JRH settings that are
Receiver module default settings
4 V (output is disconnected if VRECT voltage is lower than this value)
40 mA (minimum load current to ensure ASK communication stability)
17 mA (application dependent)
100 mA (if the output current is higher than this value, auxiliary
modulation pins CLAMP1 and CLAMP2 are activated)
Open drain, low when output is enabled (D3 LED)
Open-drain, low in case of over-temperature, over-current or over-
Lower 80°C threshold leading to output disconnection and EPT
generation to terminate power transfer. Upper 125°C threshold leading to
AC1 and AC2 pins short-to-ground.
Lower 12 V threshold leading to temporary IEXT activation (VRECT
clamping). Upper 25 V threshold leading to AC1 and AC2 pins short-to-
1.5 A threshold leading to output disconnection and EPT generation to
terminate the power transfer.
Wireless power receiver module
Default setting
5.0 V
voltage condition.
ground.
UM2693
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