MC10XS3535DHFKR2 Freescale Semiconductor, MC10XS3535DHFKR2 Datasheet - Page 26

• Manufacturer Part Number: MC10XS3535DHFKR2
• Description: Power Switch ICs - Power Distribution PENTA Output ESWITCH
• Manufacturer: Freescale Semiconductor

Specifications of MC10XS3535DHFKR2

• Rohs: yes
• Number Of Outputs: 5
• On Resistance (max): 55 mOhms
• Operating Supply Voltage: 3 V to 5.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: PQFN-24
• Minimum Operating Temperature: - 40 C
• Output Current: 250 mA

AUTORESTART STRATEGY
and reactivate high side switches in cases of overload or
under-voltage failure conditions, to provide a high availability
of the outputs.
supervising intelligence of the microcontroller is available.
Autorestart is activated in case of overload condition (OCHI2
or OCLO) or under-voltage condition on VBAT (see
Figure
of the switch OCHI1 window is enabled for tochi_Auto, then
after the output is protected by OCLO.
wake-up (wake=0 then 1).
and after auto restart period (150 ms for 10 mohm or 75 ms
for 35 mOhm) turn ON again.
26
MC10XS3535
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
Figure 9. Over-current window in case of Autorestart
The autorestart circuitry is used to supervise the outputs
Autorestart feature is available in Fail mode when no
The autorestart switches ON the outputs. During ON state
In case of OCHI1 or OT, the switch is latched OFF until
In case of OCLO or under-voltage, the output switch OFF
Output current
OCHI1
OCLO
12).
tochi_auto
OCLO or UV fault
Auto period
time
will be latched off. The corresponding output is switched on
only after its autorestart period (t
TRANSITION FAIL TO NORMAL MODE
(fail=0). The microcontroller has to toggle the SPI D10 bit (0
to 1) to reset the watchdog bit; the other bits are not
considered. The previous latched faults are reset by the
transition into Normal mode.
(fail=1). The previous latched faults are reset by the transition
into Fail mode.
Safe mode until the WD bit toggles through the SPI (from [0]
to [1]).
to logic [0]).
following sequence is provided:
TRANSITION NORMAL TO FAIL MODE
START-UP SEQUENCE
In case of under-voltage in Fail mode, the outputs 1 to 5
The Autorestart is not limited in time.
To leave the Fail mode, the fail condition must be removed
To leave the Normal mode, a fail condition must occur
If the SI is shorted to VCC, the device transmits to Fail
All settings are according to predefined values (all bits set
The 10XS3535 enters in Normal mode after start-up if
•VBAT and VCC power supplies must be above their
•generate wake up event (wake=1) from 0 to 1 on
•apply PWM clock after maximum 200 s (min. 50 s).
•send SPI command to the Device status register to clear
Figure 10
under-voltage thresholds (Sleep mode).
The device switches to Normal mode.
the clock fail flag to enable the PWM module to start.
describes the wake-up block diagram.
Analog Integrated Circuit Device Data
AUTORST-T1
Freescale Semiconductor
or t
AUTORST-T2
RST
.
).