STNRGPF01 block diagram
Pin 33, IOUT
STNRGPF01
Output current sensing. The measurement of this pin voltage allows implementation of the
following functions:
Load feed-forward. The input current reference is modified proportionally to the load, in
order to provide a faster response versus the load transient.
Channel power management. Each channel can be enabled or disabled based on the
output current level. For example, up to 30% of the load, only one channel may be
enabled, from 30% to 60% of the load, two configuration channels can be selected and
at full load all channels may be activated.
Pin 34, VOUT
Output voltage sensing. This feedback input is connected via a voltage divider to the boost
output voltage. This measurement allows implementation of the following functions:
Output voltage regulation
Overvoltage protection
In Figure 5 the block scheme of the VIN, IOUT and VOUT is shown.
Figure 5. VIN, IOUT and VOUT measurement
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DocID030377 Rev 2
STMICROELECTRONICS [ ST ]
