MC10XS3435BPNA Freescale Semiconductor, MC10XS3435BPNA Datasheet - Page 32

• Manufacturer Part Number: MC10XS3435BPNA
• Description: IC SWITCH HIGH SIDE QUAD 24-QFN
• Manufacturer: Freescale Semiconductor
• Type: High Side Switchr

Specifications of MC10XS3435BPNA

• Number Of Outputs: 4
• Rds (on): 2 x 10 mOhm, 2 x 35 mOhm
• Internal Switch(s): Yes
• Current Limit: 5A
• Voltage - Input: 6 ~ 20 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 24-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

circuitry must be active or the corresponding output must be
commanded OFF and then ON (toggling fault_control signal
of corresponding output) or V
0.
operation.
10XS3435 incorporates also a cooling bulb filament
management if OC_mode and Xenon are set to logic [1]. In
this case, the 1
depend to the previous OFF duration, as illustrated in
Figure
be used in function to the duration of previous OFF state
(toff). The slope of cooling bulb emulator is configurable with
OCOFFCB[1:0] bits.
Severe Short-Circuit Fault
protect each output in case of severe short-circuit during of
the output switching.
will latch the output OFF, FS will go to logic [0] and the fault
register SC[0:3] bit will be set to [1]. To delatch the fault and
be able to turn ON again the outputs, the failure condition
must disappear and the corresponding output must be
commanded OFF and then ON (toggling fault_control signal
of corresponding output) or V
0.
operation.
32
10XS3435
FUNCTIONAL DEVICE OPERATION
PROTECTION AND DIAGNOSTIC FEATURES
The SPI fault report (OC[0:3] bits) is removed after a read
In Normal mode using internal PWM module, the
The 10XS3435 provides output shutdown in order to
If the short-circuit impedance is below
The SPI fault report (SC[0:3] bits) is removed after a read
hson
PWM
fault_control
hson signal
Over-current thresholds
6. The following figure illustrates the current level will
st
step of multi-step over-current protection will
Cooling
toff
SUPPLY(POR)
SUPPLY(POR)
Depending on toff
depending to toff
R
condition if V
condition if V
SHORT
,
the device
DD
DD
=
=
Over-voltage Fault (Enabled by default)
10XS3435 shuts down all outputs and FS will go to logic [0]
during an over-voltage fault condition on the VPWR pin
(V
the over-voltage condition is removed (V
V
is set to logic [1] and cleared after either a valid SPI read.
(OV_dis bit is disabled set to logic [1]). The fault register
reflects any over-voltage condition (V
over-voltage diagnosis, as a warning, is removed after a read
operation, if the fault condition disappears. The HS[0:3]
outputs are not commanded in R
threshold.
Under-voltage Fault
VPWR
specified range, the internal logic states within the device will
remain (configuration and reporting).
voltage threshold (V
FS will go to logic [0], and the fault register UV bit will be set
to [1].
recovers (V
temperature shutdown circuitry. All previous latched faults,
occurred when VPWR was within the normal voltage range,
are guaranteed if VDD is within the operational voltage range
or until V
detected (VDD failure included) and reported through SPI
above VPWR
the VPWR voltage does not drop any lower than 3.5 V typical.
short-circuit, over and under-voltage) are reset if:
PWR(OVHYS)
PWR
By default, the over-voltage protection is enabled. The
The over-voltage protection can be disabled through SPI
The output(s) will latch off at some battery voltage below
In the case where battery voltage drops below the under-
Two cases need to be considered when the battery level
•
In extended mode, the output is protected by over-
All latched faults (over-temperature, over-current, severe
• If the output command is ON, FS will remain at logic [0].
• V
•V
DD
If outputs command are low, FS will go to logic [1] but
value.
the UV bit will remain set to 1 until the next read
operation (warning report).
To delatch the fault and be able to turn ON again the
outputs, the failure condition must disappear and the
autoretry circuitry must be active or the corresponding
output must be commanded OFF and then ON
(toggling fault_control signal of corresponding output)
or V
(UV)
> V
DD
SUPPLY(POR)
and V
PWR(OV)
SUPPLY(POR)
. As long as the V
< V
PWR
). When experiencing this fault, the OVF fault bit
(UV)
DD(FAIL)
PWR
> V
. The output state is not changed as long as
). The outputs remain in the OFF state until
PWR
PWR(UV)_UP
supplies is below V
if VDD = 0. Any new OT fault is
with V
Analog Integrated Circuit Device Data
condition if V
< V
PWR(UV)
DD
PWR
):
level stays within the normal
DS(ON)
in nominal voltage range,
Freescale Semiconductor
), the outputs will turn off,
DD
PWR
SUPPLY(POR)
= 0.
above the OV
PWR
> V
< V
PWR(OV)
PWR(OV)
voltage
). This
-