MCZ33810EK Freescale Semiconductor, MCZ33810EK Datasheet - Page 23

• Manufacturer Part Number: MCZ33810EK
• Description: IC IGNITION INJECTOR 32-SOIC
• Manufacturer: Freescale Semiconductor

Specifications of MCZ33810EK

• Applications: Automotive
• Current - Supply: 10mA
• Voltage - Supply: 4.5 V ~ 36 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 32-SOIC (7.5mm Width) Exposed Pad, 32-eSOIC, 32-HSOIC
• Product: Fan / Motor Controllers / Drivers
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 11. Nominal Current DAC Select
Analog Integrated Circuit Device Data
Freescale Semiconductor
DAC Command
Bits<4,3,2,1,0>
00000
00001
00010
00011
00100
00101
00110
00111
01000
01001
01010
01011
01100
01101
01110
01111
10000
10001
10010
10011
Current (A)
NOMI
3.00
3.25
3.50
3.75
4.00
4.25
4.50
4.75
5.00
5.25
5.50
5.75
6.00
6.25
6.50
6.75
7.00
7.25
7.50
7.75
Rs = 20 mΩ
Differential
(Gain = 2)
Voltage
(mV
100
105
110
115
120
125
130
135
140
145
150
155
60
65
70
75
80
85
90
95
Rs = 40 mΩ
Differential
(Gain = 1)
Voltage
(mV
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
Table 11. Nominal Current DAC Select
MAXI DAC BITS
ignition coil drivers if the current reaches a SPI
programmable maximum level. Control is achieved by
comparing the output of the current sense amplifier with a SPI
programmed DAC value.
as ignition drivers when the DAC MAXI setting is exceeded.
When a MAXI event occurs, the MAXI bit in the fault status
register is set and the MAXI pin is asserted (High).
the gain select of the differential amplifier connected to RSP
and RSN, should be set to a gain of 2, via the SPI Command
Message Spark Command (Command 0100, hex 4), Control
bit 6 =1.
the gain select of the differential amplifier connected to RSP
and RSN, should be set to a gain of 1, via the SPI Command
Message Spark Command (Command 0100, hex 4), Control
bit 6 =0. This is also the default value.
when the MAXI condition no longer exists and the SPI fault
status register has been read by the MCU.
receive the MAXI signal from a second MC33810 device in
the system. In this mode a input MAXI signal has effectively
the same control as an internal MAXI signal. Further
information is provided in the V10 Mode application section
of this specification.
The MAXI control block provides a means to shut off all the
The MAXI comparator disables all gate drivers configured
When using a 20
When using a 40
The MAXI fault bit in the SPI fault status register is cleared
In V10 Mode, the MAXI pin is configured as an input to
DAC Command
Bits<4,3,2,1,0>
10100
10101
10110
10111
11000
11001
11010
11011
11100
11101
11110
11111
m
m
Ω resistor as the current sense resistor,
Ω resistor as the current sense resistor,
Current (A)
FUNCTIONAL DEVICE OPERATION
NOMI
10.00
10.25
10.50
10.75
8.00
8.25
8.50
8.75
9.00
9.25
9.50
9.75
Rs = 20 mΩ
Differential
OPERATIONAL MODES
(Gain = 2)
Voltage
(mV
160
165
170
175
180
185
190
195
200
205
210
215
Rs = 40 mΩ
Differential
(Gain = 1)
Voltage
(mV
320
330
340
350
360
370
380
390
400
410
420
430
33810
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