參數資料
型號: MCZ33800EK
廠商: 飛思卡爾半導體(中國)有限公司
英文描述: Engine Control Integrated Circuit
中文描述: 發(fā)動機控制集成電路
文件頁數: 4/39頁
文件大?。?/td> 461K
代理商: MCZ33800EK
Analog Integrated Circuit Device Data
Freescale Semiconductor
4
33800
PIN CONNECTIONS
15
P7
Input
Input Seven
Input control of OSS output 7. When configured via the SPI, P7 input may
be used to control OSS output 7 and output 8 in parallel.
16,17, 18, 19,
20, 21
PWMX
Input
Pulse Width
Modulated Input
The PWMX input pin is used for direct parallel control of the GDX (Gate
Drive Output X) predriver or as on/off control of the internal PWM
controller. Control strategy is programmed via the SPI.
22
CCD2_GND
Ground
CCD2 Ground
The CCD2_GND pin provides a dedicated ground for the CCD2 constant
current controller
23
CCD2_OUT
Output
Current Controlled
Driver 2 Output
The CCD2_OUT pin is connected to a series internal sense resistor and
power MOSFET driver. The CCD2_OUT has a pull up and pull down
current source and is used for fault threshold monitoring.
24
CCD2_REC
Input
Current Controlled
Driver 2 Recirculation
Input
The CCD2_REC pin provides a recirculation path for the load current.
The CCD2_REC pin is connected to the node between the internal sense
resistor and power MOSFET driver. The device uses the differential
voltage between CCD2_REC and CCD2_OUT to determine the load
solenoid current.
25
EN
Input
ENABLE
The EN pin is an active high input.
26
RI_REF
Output
Resistor for Current
Reference
The RI_REF pin is used to generate a reference current. The reference
is used in the regulation of the constant current controller. The constant
current controller regulation current is inversely proportional to the
reference current through the external resistor. A 39.2k
1% resistor to
ground will set the 1FF programmed current value of the CCD1 to
1075mA and the CCD2 to be 232mA.
27
CCD1_OUT
Output
Current Controlled
Driver 1 Output
The CCD1_OUT pin is connected to a series internal sense resistor and
power MOSFET driver. The CCD1_OUT has a pull up and pull down
current source and is used for fault threshold monitoring.
28
CCD1_REC
Input
Current Controlled
Driver 1 Recirculation
Input
The CCD1_REC pin provides a recirculation path for the load current.
The CCD1_REC pin is connected to the node between the internal sense
resistor and power MOSFET driver. The device uses the differential
voltage between CCD1_REC and CCD1_OUT to determine the load
solenoid current.
29
CCD1_GND
Ground
CCD1 Ground
The CCD1_GND pin provides a dedicated ground for the CCD1 constant
current controller
30
VPWR
Power Input Analog Voltage Supply
The VPWR pin provides power to all pre-driver, driver and output circuits
and other internal functions such as the oscillator and SPI circuits.
31
GND
Ground
Ground
Analog ground for the internal control circuits of the IC. This ground
should be used for decoupling of VDD and VPWR supply.
32
VCAL
Input
Voltage Calibrated
Input
VCAL input is a precision (2.5V, +8.0mV, -20mV over temperature)
reference input, used in several internal circuits. A 1.0nF to 10nF
decoupling capacitor is required on the VCAL input pin to ground.
33
VDD
Power Input
Digital Voltage Supply
The VDD pin supplies power to the Serial Output (SO) buffer along with
the pull up current sources for the chip select (CS) and DEFAULT inputs.
34
SO
Output
Serial Output Data
The SO output pin is used to transmit serial data from the device to the
MCU. The SO pin remains tri-stated until selected by the active low CS.
The serial output data is available to be latched by the MCU on the rising
edge of SCLK. The SO data transitions on falling edge of the SCLK.
35
DEFAULT
Input
Default Mode Enable
The DEFAULT pin is an active high input.
36-38, 40,
41-43, 45
OUT1-OUT8
Output
OSS Output 1-8
Octal Serial Switch (OSS) low side driver output 1-8.
Table 1. 33800 Pin Definitions(continued)
A functional description of each pin can be found in the Functional Pin Description section beginning on
page 16
.
Pin Number
Pin Name
Pin Function
Formal Name
Definition
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