MC33580BAPNA Freescale, MC33580BAPNA Datasheet - Page 21

• Manufacturer Part Number: MC33580BAPNA
• Manufacturer: Freescale

Specifications of MC33580BAPNA

• Switch Type: High Side
• Power Switch Family: MC33580
• Input Voltage: 6 to 27V
• Power Switch On Resistance: 30mOhm
• Number Of Outputs: 4
• Mounting: Surface Mount
• Supply Current: 20mA
• Package Type: Power QFN
• Operating Temperature (min): -40C
• Operating Temperature Classification: Automotive
• Pin Count: 24
• Lead Free Status / RoHS Status: Compliant

OPEN LOAD FAULT (NON-LATCHING)
the output. Output open load fault (OLF) is detected and
reported as a fault condition when the output is disabled
(OFF). The open load fault is detected and latched into the
status register after the internal gate voltage is pulled low
enough to turn OFF the output. The OLF fault bit is set in the
status register. If the open load fault is removed, the status
register will be cleared after reading the register.
OL_DIS).
detection circuitry in case of permanent disconnected
load.
REVERSE BATTERY
low as -16 V. Under these conditions, the output’s gate is
enhanced to keep the junction temperature less than 150°C.
Table 7. Device Behavior in Case of Undervoltage
Analog Integrated Circuit Device Data
Freescale Semiconductor
VPWR > VPWRUV Output State
VPWRUV > VPWR
> UVPOR
UVPOR > VPWR >
2.5 V ∗
2.5 V > VPWR > 0V Output State
∗ = Typical value; not guaranteed.
∗∗ = While V
∗∗∗ = IN_x is equivalent to IN_x direct input or IN_spi_s SPI input.
Quad High-Side
(VPWR Battery
The 33580 incorporates open load detection circuitry on
The open load protection can be disabled through SPI (bit
The output survives the application of reverse voltage as
Voltage) ∗∗
Switch
It is recommended to disable the open load
DD
remains within specified range.
FS State
SPI Fault Register
UVF Bit
Output State
FS State
SPI Fault Register
UVF Bit
Output State
FS State
SPI Fault Register
UVF Bit
FS State
SPI Fault Register
UVF Bit
Comments
State
(Falling VPWR)
1 until next read
1 until next read 1 until next read 1 until next read 1 until next read 1 until next read 1 until next read
UV Enable
not latched
UV fault is
IN[0:3]=0
OFF
OFF
OFF
OFF
1
0
0
1
1
1
1 until next read
Rising VPWR)
UV Enable
(Falling or
not latched
UV fault is
IN[0:3]=0
OFF
OFF
OFF
OFF
1
0
1
1
1
1
The ON resistance of the output is fairly similar to that in the
Normal mode. No additional passive components are
required except on V
GROUND DISCONNECT PROTECTION
ground, the device protects itself and safely turns OFF the
output regardless of the state of the output at the time of
disconnection. A 10K resistor needs to be added between the
wake pin and the rest of the circuitry in order to ensure that
the device turns off in case of ground disconnect and to
prevent this pin to exceed its maximum ratings.
digital supply against excessive current (1 kohm typical).
(Falling VPWR)
1 until next read 1 until next read 1 until next read 1 until next read
In the event the 33580 ground is disconnected from load
Current limit resistors in the digital input lines protect the
UV Enable
IN_x***=1
OFF
OFF
OFF
ON
1
0
0
1
1
1
(Rising VPWR)
PROTECTION AND DIAGNOSTIC FEATURES
UV Enable
IN_x***=1
is latched
UV fault
DD
OFF
OFF
OFF
OFF
0
1
0
1
1
1
.
FUNCTIONAL DEVICE OPERATION
Rising VPWR)
1 until next read
UV Disable
(Falling or
IN[0:3]=0
0 (falling)
(rising)
OFF
OFF
OFF
OFF
1
1
1
1
1
Rising VPWR)
1 until next read
UV Disable
(Falling or
IN_x***=1
0 (falling)
(rising)
OFF
ON
ON
ON
1
1
1
1
1
33580
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