參數(shù)資料
型號(hào)： MCZ33800EK
廠商： 飛思卡爾半導(dǎo)體(中國(guó))有限公司
英文描述： Engine Control Integrated Circuit
中文描述： 發(fā)動(dòng)機(jī)控制集成電路
文件頁(yè)數(shù)： 35/39頁(yè)
文件大?。?/td> 461K
代理商： MCZ33800EK
Analog Integrated Circuit Device Data
Freescale Semiconductor
35
33800
TYPICAL APPLICATIONS
INTRODUCTION
TYPICAL APPLICATIONS
INTRODUCTION
Output OFF Open Load Fault
An Output OFF Open Load Fault is the detection and
reporting of an
open
load when the corresponding output is
disabled (input bit programmed to a logic low state). The
Output OFF Open Load Fault is detected by comparing the
drain-to-source voltage of the specific MOSFET output to an
internally generated reference. Each output has one
dedicated comparator for this purpose.
Each output has an internal pull-down current source or
resistor. The pull-down current sources are enabled on
power-up and must be enabled for Open Load Detect to
function. In cases were the Open Load Detect current is
disabled, the status bit will always respond with logic 0. The
device will only shut down the pull-down current in Sleep
Mode or when disabled via the SPI.
During output switching, especially with capacitive loads,
a false Output OFF Open Load Fault may be triggered. To
prevent this false fault from being reported, an internal fault
filter of 100
μ
s to 450
μ
s is incorporated. The duration for
which a false fault may be reported is a function of the load
impedance, R
DS(ON)
, C
OUT
of the MOSFET, as well as the
supply voltage, V
PWR
. The rising edge of
CS
triggers the built-
in fault delay timer. The timer must time out before the fault
comparator is enabled to detect a faulted threshold. Once the
condition causing the Open Load Fault is removed, the
device resumes normal operation. The Open Load Fault,
however, will be latched in the output SO Response register
for the MCU to read.
Under-voltage Shutdown
An under-voltage condition on V
DD
results in the global
shutdown of all outputs and reset of all control registers. The
under-voltage threshold is between 0.8 and 2.8V.
An under-voltage condition on V
PWR
also results in the
global shutdown of all outputs and reset of all control
registers. The under-voltage threshold is between 3.0 and
4.4V
Low-voltage condition (4.4V< V
PWR
<9.0V) will operate
per the command word, however status reported on SO pin
is not guaranteed and performance may be out of
specification limits.
Output Voltage Shutdown
An over voltage condition on VDD (> 7.0) may result in
permanent damage to the 33800. Over-voltage on the VPWR
pin will cause the 33800 to shut down until the voltage returns
to a normal value. Over voltage exceeding the maximum
recommended voltage (45V) may cause permanent damage
to the 33800.
Output Voltage Clamp
Each output of the 33800 incorporates an internal voltage
clamp to provide fast turn-OFF and transient protection of
each output. Each clamp independently limits the drain-to-
source voltage to 50V. The total energy clamped (E
J
) can be
calculated by multiplying the current area under the current
curve (I
A
) times the clamp voltage (V
CL
) (see
Figure 10
).
Characterization of the output clamps, using a single pulse
non-repetitive method at 0.3A, indicates the maximum
energy to be
50mJ at 150
°
C
junction temperature per output.
.
Figure 10. Output Voltage Clamping
Reverse Battery Protection
The 33800 device requires external reverse battery
protection on the VPWR
pin.
All outputs consist of a power MOSFET with an integral
substrate diode. During reverse battery condition, current will
flow through the load via the substrate diode. Under this
circumstance relays may energize and lamps will turn on. If
load reverse battery protection is desired, a diode must be
placed in series with the load.
Current
Area (I
A
)
(E
J
= I
A
CL
)
Drain Voltage
Time
Voltage (V
= 50V)
Voltage (V
CL
= 50V)
D
(I
D
= 0.3 A)
DS(O N)
)
Voltage (V
)
Drain-to-Source Clamp
Drain-to-Source ON
CClamp Energy
(E
J
= I
A
x x V
CL
)
GND
(I
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCZ33800EKR2 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 AUTO ENG CONTROL IC RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
MCZ33800R2 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Engine Control Integrated Circuit
MCZ33810EK 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Ignition Injector Driver RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
MCZ33810EK/R2 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Automotive Engine Control IC
MCZ33810EKR2 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Ignition Injector Driver RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
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