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부품번호 33812 기능
기능 Multifunctional Ignition and Injector Driver
제조업체 Freescale Semiconductor
로고 Freescale Semiconductor 로고


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33812 데이터시트, 핀배열, 회로
Freescale Semiconductor
Advance Information
Document Number: MC33812
Rev. 5.0, 7/2010
Multifunctional Ignition and
Injector Driver
The 33812 is an engine control analog power IC intended for
motorcycle and other single/dual cylinder small engine control
applications. The IC consists of three integrated low side drivers, one
pre-driver, a +5.0 V, voltage pre-regulator, an MCU watchdog circuit,
an ISO 9141 K-Line interface, and a parallel interface for MCU
communication. The three low side drivers are provided for driving a
fuel injector, a lamp or LED, and a relay or other load. The pre-driver
is intended to drive either an Insulated Gate Bipolar Transistor (IGBT)
or a bipolar Darlington transistor to control an ignition coil.
33812
SMALL ENGINE CONTROL IC
Features:
• Designed to operate over the range of ~4.7 V VPWR 36 V
• Fuel Injector driver - Current Limit - 4.0 A Typical
• Ignition pre-driver can drive IGBT or Darlington bipolar junction
EK Pb-FREE SUFFIX
98ASA10556D
32 Pin SOICW EP
transistors
• Ignition pre-driver has independent high and low side outputs
ORDERING INFORMATION
• Relay driver - Current Limit - 4.0 A Typical
• Lamp driver- Current Limit - 1.5 A Typical
• All external outputs protected against short to battery, over-current
• Ignition and other drivers protected against over-temperature
• Interfaces directly to MCU Using 5.0 V parallel interface
Device
MCZ33812EK/R2
*MCZ33812AEK/R2
Temperature
Range (TA)
-40° to 125°C
Package
32 SOICW-EP
• VCC voltage pre-regulator provides +5.0 V power for the MCU
*Note: AEC qualified for automotive applications
• MCU Power On RESET generator
• MCU watchdog timer circuit with parallel refresh/time setting line
• Independent fault annunciation outputs for ignition, injector and relay drivers
• ISO-9141 K-Line transceiver for communicating diagnostic messages
• Pb-free packaging designated by suffix code EK
VBAT
+5 V
MCU
VCC
GPIO
GPIO
RESET
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
RXD
TXD
PNP
VPWR
33812
LAMPOUT
MIL VBAT
VBAT
+5 V
VCCREF
VCCSENS
LAMPIN
RIN
RESET
WDRFSH
ROUT
INJECTOR
INJOUT
VBAT
IGNSUP
IGNFB
VPWR
RELAY OR
OTHER LOAD
VBAT
INJIN
INJFLT
IGNOUTH
IGNIN
IGNFLT
RELFLT
MRX
MTX
IGNOUTL
(IGBT DRIVER SHOWN)
TM_EN, TEST2
WD_INH
PGND1,2
DGND
ISO9141
ISO9141
Note: Surge Voltage protection recommended on VPWR
Figure 1. 33812 Simplified Application Diagram
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© Freescale Semiconductor, Inc., 2010. All rights reserved.




33812 pdf, 반도체, 판매, 대치품
PIN CONNECTIONS
PIN CONNECTIONS
IGNOUTL
IGNOUTH
IGNSUP
IGNFB
ISO9141
VCCSENS
VCCREF
VPWR
RESET
INJFLT
RELFLT
IGNFLT
INJIN
RIN
LAMPIN
IGNIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
GND
32 TEST3
31 TEST2
30 TEST1
29 WD_INH
28 N.C.
27 INJOUT
26 PGND1
25 DGND
24 LAMPOUT
23 PGND2
22 ROUT
21 N.C.
20 TM_EN
19 WDRFSH
18 MRX
17 MTX
Figure 4. 33812 Pin Connections
Table 1. 33812 Pin Definitions
Pin
Pin Name
Pin
Function
Formal Name
Description
1 IGNOUTL Output
2 IGNOUTH Output
3 IGNSUP Input
4 IGNFB Input
Ignition Output Low
Ignition Output High
Ignition Output Supply
Feedback from Source
Low side output to drive Gate/Base of IGBT/Bipolar Darlington
High side output to drive Gate/Base of IGBT/Bipolar Darlington
Tie to +5 V for Darlington, tie to the VPWR supply for IGBT output device
Voltage feedback from source of Ignition driver transistor through 10:1
voltage divider
5 ISO9141 Input/Output ISO9141 K-Line Bidirectional The ISO9141 pin is VPWR level IN/OUT signal connected to external ECU
Serial Data Signal
Tester using ISO9141 Protocol.The Output is Open drain and the Input is
a ratiometric VPWR level threshold comparator
6 VCCSENS Input
Voltage Sense from VCC Feedback to internal VCC regulator from external pass transistor
7
VCCREF
Output VCC Reference Base drive Base drive voltage for external PNP pass transistor
8 VPWR Supply Input Main Voltage Supply Input VPWR is the main voltage supply Input for the device. Connected to +12
volt battery (It should have reverse battery protection and transient
suppression.)
9
RESET
Output
Reset Output to MCU
Logic Level Reset signal used to reset the MCU when the watchdog circuit
times out, during under voltage condition on VCC and for initial power up
and power down
10 INJFLT Output
11 RELFLT Output
12 IGNFLT Output
13 INJIN
Input
14 RIN
Input
15 LAMPIN
Input
Injector Fault
Relay Fault
Ignition Fault
Injector Parallel Input
Relay Parallel Input
LAMP Parallel Input
Logic Level output to MCU indicating any fault in the injector circuit.
Logic Level output to MCU indicating any fault in the relay circuit.
Logic Level output to MCU indicating any fault in the ignition circuit.
Logic Level input from the MCU to control the injector driver output
Logic Level Parallel input to activate RELAY output, ROUT
Logic Level Parallel input to activate the malfunction indicator lamp output,
LAMP
16 IGNIN
Input
Ignition Parallel Input
Logic Level Input from MCU controlling the ignition coil current flow and
spark.
17 MTX
Input
ISO9141 MCU Data Input Input logic level ISO9141 data from the MCU to the ISO9141 IN/OUT pin
33812
4
Analog Integrated Circuit Device Data
Freescale Semiconductor

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33812 전자부품, 판매, 대치품
ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
Characteristics noted under conditions of 7.0 V VPWR 18 V, -40°C TC 125°C, unless otherwise noted. Where
applicable, typical values reflect the parameter’s approximate average value with VPWR = 14 V, TA = 25°C.
Characteristic
Symbol
Min Typ Max
Unit
POWER INPUT (VPWR)
Supply Voltage (measured at VPWR pin)(7)
Fully Operational
Full Parameter Specification
Supply Current - All Outputs Disabled (Normal Mode)
VPWR Over-voltage Shutdown Threshold Voltage (8)
VPWR Over-voltage Shutdown Hysteresis Voltage
VPWR Under-voltage Shutdown Threshold Voltage (8)
VPWR Under-voltage Shutdown Hysteresis Voltage
VOLTAGE REGULATOR OUTPUTS (VCCREF, VCCSENS)
VPWR (FO)
VPWR (FP)
IVPWR (ON)
VPWR(OV)
VPWR(OV-HYS)
VPWR(UV)
VPWR(UV-HYS)
4.7
7.0
36.5
0.5
3.0
100
– 36 V
18
10.0 14.0 mA
39 42 V
1.5 3.0 V
3.7 4.4 V
200 300 mV
VCCSENS (VCC) Output Voltage (measured with external output PNP
(FZT753 typical) transistor and 500 Ω Load on VCCSENS)
VCCREF Output Current (9)
VCCREF Current Limit
Output Capacitance External (ceramic, low ESR recommended)
VCCSENS Input Current
Line Regulation (external output PNP transistor and 500 Ω Load on
VCCSENS)
VSENS
IVCCREF
IVCCCL
VOCE
IVCCSENS
REGLINE_VCC
4.9
5.0
2.2
5.0 5.1 V
-5.0 – mA
15 20 mA
– – μF
50
1000
μA
2 25 mV
Load Regulation (external output PNP transistor and 500 Ω Load on
VCCSENS)
REGLOAD_VCC
2 25 mV
Dropout Voltage (Minimal Input/Output Voltage at full load)
VCC Under-voltage RESET Threshold Voltage
LOW SIDE DRIVER (INJOUT AND ROUT)
Output Fault Detection Voltage Threshold(10)
Outputs programmed OFF (Open Load, Injector/Relay)
Outputs programmed ON (Short to Battery)
VDROPOUT
RESETUV_VCC
VOUT (FLT-TH)
4.5
2.0
46 200 mV
4.7 4.9 V
2.5 3.0 V
Output OFF Open Load Detection Current (Injector/Relay)
VDRAIN = 18 V, Outputs Programmed OFF
I(OFF)OCO
μA
40 75 150
Notes
6. Device is functional provided TJ is less than 150°C. Some table parameters may be out of specification.
7. Over-voltage thresholds minimum and maximum include hysteresis.
8. Under-voltage thresholds minimum and maximum include hysteresis, for disabling outputs only, RESET based on VCC under-voltage
9. This parameter is guaranteed by design, however is not production tested.
10. Output fault detect thresholds are the same for output open and shorts.
Analog Integrated Circuit Device Data
Freescale Semiconductor
33812
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