908E621_08 Datasheet, PDF (43/65 Pages) Freescale Semiconductor, Inc – Integrated Quad Half-bridge and Triple High Side with Embedded MCU and LIN for High End Mirror

HS Current
HS Over-current Shutdown Threshold
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
t
PWM Pin
t
Figure 24. Inrush Current Limitation on HS Outputs
High Side Current Recopy
Each High Side has an additional sense output to allow a
current recopy feature. This sense source is internally
connected to a shunt resistor. The drop voltage is amplified
and switched to the Analog Multiplexer.
Switchable HVDD Outputs
The HVDD pin is a switchable 5V output pin. It can be used
for driving external circuitry, which requires a 5V voltage. The
output is enabled with the PSON bit in the System Control
register, and can be switched on / off with the HVDD_ON bit
in the High Side Out register. Low or high voltage conditions
(LVIF / HVIF) will have no influence on this circuitry.
HVDD Over-temperature Protection
The output is protected against over-temperature
conditions.
HVDD Over-current Protection
The HVDD output is protected against over-current. In
case the current reaches the over-current limit, the output
current will be limited, and the HVDDOCF over-current flag in
the System Status register is set.
HIGH SIDE OUT REGISTER (HSOUT)
Register Name and Address: HSOUT - $02
Bit7 6
5
4
3
2
1 Bit0
Read
0
HVDD
HS3P HS2P HS1P HS3O HS2O HS1O
ON
Write
WM WM WM N
N
N
Reset 0
0
0
0
0
0
0
0
HVDD-ON — HVDD On Bit
This read/write bit enables the HVDD output.
Reset clears HVDDON bit.
1 = HVDD enabled
0 = HVDD disabled
HSxON — High Side on/off Bits
These read/write bits turn on the High Side Fet’s
permanently. Reset clears the HSxON bits.
1 = High Side x is turned on
0 = High Side x is turned off
Analog Integrated Circuit Device Data
Freescale Semiconductor
908E621
43