数据搜索系统,热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

MC33094 数据表(PDF) 9 Page - Motorola, Inc

部件名 MC33094
功能描述  IGNITION CONTROL
Download  16 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  MOTOROLA [Motorola, Inc]
网页  http://www.freescale.com
标志 MOTOROLA - Motorola, Inc

MC33094 数据表(HTML) 9 Page - Motorola, Inc

Back Button MC33094 Datasheet HTML 5Page - Motorola, Inc MC33094 Datasheet HTML 6Page - Motorola, Inc MC33094 Datasheet HTML 7Page - Motorola, Inc MC33094 Datasheet HTML 8Page - Motorola, Inc MC33094 Datasheet HTML 9Page - Motorola, Inc MC33094 Datasheet HTML 10Page - Motorola, Inc MC33094 Datasheet HTML 11Page - Motorola, Inc MC33094 Datasheet HTML 12Page - Motorola, Inc MC33094 Datasheet HTML 13Page - Motorola, Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 16 page
background image
MC33094
9
MOTOROLA ANALOG IC DEVICE DATA
represents an effort to reduce excess dwell and therefore
power dissipation during high voltage operation. The 5.88
µA
discharge rate is used under normal VCC operating
conditions. Under a start mode, this block will discharge the
adaptive capacitor forcing an enhanced start mode dwell.
The start/run modes are set internally by detecting the engine
frequency, which corresponds to the ramp capacitor voltage.
The Stall Capacitor Charging and Sensing block controls
the charging and discharging rates of the stall capacitor. The
charging rate is 31.5
µA, and the two discharging rates are
1.0
µA and 7.0 µA. The stall capacitor potential commands
the IC to maintain or reduce the coil current. When the engine
is turning very slowly (or stalled), the stall capacitor will have
enough time to discharge below threshold and thereby
reduce coil current. The output current limiter (see Output
Current Driver and Limiter block description below) forces the
coil current to be proportional to the stall capacitor voltage
when the stall capacitor voltage is less than 2.0 V.
The Ramp Capacitor Charging and Sensing block charges
the ramp capacitor at approximately 8.4
µA and discharges it
at about 33.6
µA. The charging circuit is always on and
sources current during the “not 25%” part of the engine cycle.
The discharging circuit is only on and sinking current during
the “25%” part of the engine cycle. The positive edge of the
distributor input signal sets the 25% mode, and the ramp
comparator output clears this mode.
The CR > CA Adaptive Comparator block signals the point
where the ramp capacitor voltage is greater than the adaptive
capacitor voltage. The point at which the two capacitor
voltages are equal is the point where charging of the coil is
begun. The adaptive algorithm used in the IC maintains the
required excess dwell throughout all reasonable
accelerations and decelerations without causing excess coil
power dissipation, in addition, it insures that more than
adequate spark energy is available for very high engine
speeds, when excess dwell is impossible.
The Output Current Driver and Limiter block sources a
limited supply current of about 50 mA to the base of the
Darlington power transistor. The Darlington will cause the
coil to conduct to about 6.5 amps and the voltage drop on
the IS pin of the IC will rise to the threshold of the current
limiter. The current limiter will then hold the coil current at that
level until either a spark is commanded by the logic block, or
the engine begins to stall (causing the coil to slowly
discharge).
The Internal Logic block performs the required memory
and gating functions on the IC to implement the adaptive
ignition control algorithm.
Band Gap
Reference
Input
Voltage
Comparator
Negative
Edge Filter
Ramp Capacitor
Charging and Sensing
Adaptive Capacitor
Charging and Sensing
CR > CA
Adaptive
Comparator
VCC
Comparator
and Clamp
CS
Out
DS
CL
S
VCC
MB
Vr
Gnd
Vr
BG
Master Bias
Vin(-)
CA
CR
CR
CA
Vr
Master Bias
25% Reset
BG
25%
Vr
Master
Bias
BG
VCC
Vr
25%
25%
Reset
ZC
Stall
CR > CA
Stall
ST
T
Hi-Bat.
Stall
Limit
Dump
Master Bias
Current
Reference
Vr Zener
Reference
Output Current
Driver and
Limiter
Internal
Logic
Stall Capacitor
Charging
and Sensing
Figure 10. Block Diagram
9
26
12
10
11
14
15
7
3
4
8
13
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com


类似零件编号 - MC33094

制造商部件名数据表功能描述
logo
ATGBICS by Approved Tec...
MC3309124-005-C ATGBICS-MC3309124-005-C Datasheet
170Kb / 3P
   MC3309124-005 NVIDIA Mellanox Compatible Direct Attach Copper Twinax Cable 10G SFP Cu (5m, Passive)
MC3309124-007-C ATGBICS-MC3309124-007-C Datasheet
152Kb / 3P
   MC3309124-007 NVIDIA Mellanox Compatible Direct Attach Copper Twinax Cable 10G SFP Cu (7m, Passive)
MC3309130-002-C ATGBICS-MC3309130-002-C Datasheet
152Kb / 3P
   MC3309130-002 NVIDIA Mellanox Compatible Direct Attach Copper Twinax Cable 10G SFP Cu (2m, Passive)
MC3309130-003-C ATGBICS-MC3309130-003-C Datasheet
151Kb / 3P
   MC3309130-003 NVIDIA Mellanox Compatible Direct Attach Copper Twinax Cable 10G SFP Cu (3m, Passive)
MC3309130-00A-C ATGBICS-MC3309130-00A-C Datasheet
152Kb / 3P
   MC3309130-00A NVIDIA Mellanox Compatible Direct Attach Copper Twinax Cable 10G SFP Cu (0.5m, Passive)
More results

类似说明 - MC33094

制造商部件名数据表功能描述
logo
Mallory performance clu...
585 MALLORY-585 Datasheet
691Kb / 12P
   IGNITION CONTROL
6852M MALLORY-6852M Datasheet
1Mb / 36P
   ELECTRONIC IGNITION CONTROL
6855M MALLORY-6855M Datasheet
218Kb / 12P
   ELECTRONIC IGNITION CONTROL
logo
STMicroelectronics
ICC03-400B2 STMICROELECTRONICS-ICC03-400B2 Datasheet
47Kb / 7P
   IGNITION CONTROL CIRCUIT
logo
Mallory performance clu...
686M MALLORY-686M_14 Datasheet
1Mb / 12P
   ELECTRONIC IGNITION CONTROL
6865M MALLORY-6865M_14 Datasheet
1Mb / 12P
   ELECTRONIC IGNITION CONTROL
6861M MALLORY-6861M Datasheet
785Kb / 12P
   ELECTRONIC IGNITION CONTROL
6865M MALLORY-6865M Datasheet
1Mb / 12P
   ELECTRONIC IGNITION CONTROL
686M MALLORY-686M Datasheet
1Mb / 12P
   ELECTRONIC IGNITION CONTROL
6014 MALLORY-6014 Datasheet
1Mb / 12P
   MSD LS Ignition Control
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


数据表 下载

Go To PDF Page


链接网址




隐私政策
ALLDATASHEETCN.COM
ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   链接交换   |   制造商名单
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com