MC33288DH MOTOROLA [Motorola, Inc], MC33288DH Datasheet - Page 3

• Manufacturer Part Number: MC33288DH
• Description: Solid State Relay for Automotive Flasher Applications
• Manufacturer: MOTOROLA [Motorola, Inc]

L = ‘Low level’ H = ‘High level’X = ‘don’t care’
NOTES :
In case of over current or short-circuit, the device will not report the fault to the status pins. The output current will be limited to the Ilim value. The device will probably
heat up and in this case the overtemperature detection will be triggered. If so, the output will be turned off and the fault will be reported to the status pins.
FUNCTIONAL TRUTH TABLE
Normal Operation
Openload Channel 1
Openload Channel 2
Overtemp Channel 1
Overtemp Channel 2
Overtemp Channel 1 and Channel 2
Overcurrent or Current limit Channel 1 (note)
Overcurrent or Current Limit Channel 2 (note)
R : 10k typical
Rcr : 500Ω to 1kΩ typical
Cb : 100nF to 470nF
Rwlp : 100Ω typical
Trailor Left side
21+5W
Battery
MCU
A/D
Current copy
21+21+5W
Left side
I/O
I/O
I/O
resistor
R
R
R
R
Cb
Solid State Relay for Automotive Flasher Applications
5V
Rcr
Freescale Semiconductor, Inc.
Out-2
Out-2
Out-2
Cur R
10K
ST
IN-2
IN-1
For More Information On This Product,
Block Diagram and Application Schematic
CHANNEL 2
St-2
Left
Go to: www.freescale.com
Cr 2
GND
L
H
L
H
H
X
H
L
X
X
H
H
X
Trigger
Input
In-1
MC33288
St-1
IN-2
Warning Lamp
Monitoring
L
L
H
H
X
H
X
X
H
L
H
X
H
Charge
Pump
Fault
In-2
Driver
Drive &
protect
Temp
Over
L
H
L
H
H
X
L
L
X
X
L
H
X
V
bat
CHANNEL 1
Out-1
Wlp
Right
Open
Vbat
1.2W
Load
V
batc
Current
Over
L
L
H
H
X
H
X
X
L
L
L
X
H
Rwlp
MC33288
Out-2
Current
Recopy
Cr 1
Vbat
H
H
H
H
L
L
L
H
L
H
L
H
H
St
Out-1
Out-1
Out-1
21+21+5W
Trailor Right side
Right side
21+5W
3