Data Sheet
62
Rev. 1.00
2017-07-31
TLE9263BQXV33
High-Side Switch
9
High-Side Switch
9.1
Block Description
Figure 24 High-Side Module Block Diagram
Features
•
Dedicated supply pin VSHS for high-side outputs
•
Overvoltage and undervoltage switch off - configurable via SPI
•
Overcurrent detection and switch off
•
Open load detection in ON-state
•
PWM capability with internal timer configurable via SPI
•
Switch recovery after removal of OV or UV condition configurable via SPI
9.2
Functional Description
The High-Side switches can be used for control of LEDs, as supply for the wake inputs and for other loads. The
High-Side outputs can be controlled either directly via SPI by (
HS_CTRL1
,
HS_CTRL2
), by the integrated
timers or by the integrated PWM generators.
The high-side outputs are supplied by a dedicated supply pin VSHS (different to VS). The topology supports
improved cranking condition behavior.
The configuration of the High-Side (Permanent On, PWM, cyclic sense, etc.) drivers must be done in SBC
Normal Mode. The configuration is taken over in SBC Stop- or SBC Sleep Mode and cannot be modified. When
entering SBC Restart Mode or SBC Fail-Safe Mode the HSx outputs are disabled.
HS Gate Control
Overcurrent Detection
Open Load (On)
VSHS
HSx
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