MC35XS3500DHFKR2 Freescale Semiconductor, MC35XS3500DHFKR2 Datasheet - Page 36

• Manufacturer Part Number: MC35XS3500DHFKR2
• Description: Power Switch ICs - Power Distribution PENTA 35MOHM ESWITCH
• Manufacturer: Freescale Semiconductor

Specifications of MC35XS3500DHFKR2

• Rohs: yes
• Number Of Outputs: 5
• On Resistance (max): 35 mOhms
• Operating Supply Voltage: 7 V to 20 V
• Supply Current (max): 10 mA
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: PQFN-24
• Minimum Operating Temperature: - 40 C
• Output Current: 65 mA

DIAGNOSIS
Open Load
output (OUT1:OUT5 ) when the output pin is in the ON state.
Open load detection levels can be chosen by the SPI to
detect a standard bulb or LEDs (OLLED bit). Open load for
LEDs only is detected during each regular switch-off state or
periodically each t
OLLED in fully on state, the output must be on at least t
When an open load has been detected, the output stays ON.
and a SPI read operation is needed (OL bit). In case of a
Power on Reset on VBAT, the fault will be reset.
36
35XS3500
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
The 35XS3500 provides open load detection for each
To delatch the diagnosis, the condition should be removed
OFF
out: OFF
autorestart=0
external: IGN, Flasher, Stop
external_ON: IGN_ON, Flasher_ON, Stop_ON
Note: * See Autorestart strategy chapter.
external_ON
external
(external_ON=0)
(external_ON=1)
(external_ON=0)
OLLED
(UV=1)
(external_on=1)
(fully-on, D[6:0] = 7F)
Figure 14. Faults Management in Fail Mode (for OUT[1:5] only)
and
OCHI1
out: external
(UV=1)
(external_ON=0)
.
To detect
(t>t
(t>t
(OT=1) or
(OCHI1=1)
OCHI1
autorestart
(t>t
1.4 sec min
OLLED.
) and (autorestart=0)
OCHI1_AUTO
) and (UV*=0)
OFF-latched
State
OFF Autorestart
out: OFF
autorestart=1
) and (autorestart=1)
Current Sense
done using the current sense (CSNS) pin connected to an
external resistor. The CSNS resistance value is defined in
function to VCC voltage value. It is recommended to use
resistor 500
5.0 V application. The routing of the current sense sources is
SPI programmable (MUX[2,0] bits).
a high over-current shutdown phase (t
during low over-current shutdown thresholds. The current
recopy output delivers current only during ON time of the
output switch without overshoot (aperiodic settling).
precision can be improved significantly. One calibration point
(external_ON=0)
The 35XS3500 diagnosis for load current (OUT1:6) is
The current recopy feature for OUT1:5 is disabled during
The current recopy is not active in Fail mode.
With a calibration strategy, the output current sensing
OCHI2
out: external
(OT=1)

(UV=1) or (OCHI2=1)
< R
CSNS
(t>t
OCHI2
Analog Integrated Circuit Device Data
< 5.0 k
(OCLO=1)
(UV=1)
) and (autorestart=0)

. Typical value is 1.0 k
Freescale Semiconductor
2
or
) and is only enabled
(OT=1)
OCLO
out: external

for