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PDF PC33813 Data sheet ( Hoja de datos )
| Número de pieza | PC33813 | |
| Descripción | One Cylinder Small Engine Control IC | |
| Fabricantes | Freescale Semiconductor | |
| Logotipo |  |
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Freescale Semiconductor
Product Preview
Document Number: MC33813
Rev. 1.0, 8/2012
One Cylinder Small Engine
Control IC
33813
The 33813 is an engine control analog power IC intended for one cylinder
motorcycle and other small engine control applications. The IC consists of
five integrated low side drivers, two pre-drivers, a Variable Reluctance
Sensor (VRS) input circuit, a voltage pre-regulator using an external pass
transistor, and two 5.0 volt internal regulators, one for the microcontroller
unit (MCU) VCC supply and the other for use as a protected sensor supply.
Also included is an MCU reset control circuit with watchdog, an ISO 9141
K-line interface for diagnostic communication and a Serial Peripheral
Interface (SPI). The five low side drivers are intended for driving a fuel
injector, a lamp, two relays or other loads, and a tachometer. The pre-
driver is intended to drive IGBT or MOSFET transistors to control ignition
coils, and/or a HEGO heater. The device is packaged in a 48 pin LQFP-
EP with an exposed pad.
Features:
• Operates over a supply voltage range of 4.5 V VPWR 36 V
• Logic stability guaranteed down to 2.5 V
• One fuel injector driver - typical of 1.3 A
• One ignition IGBT or general purpose gate pre-driver
• One O2 sensor (HEGO) heater general purpose gate pre-driver
• Relay 1 driver, typically 2.0 A, can be used for fuel pump control
• Relay 2 driver, typically 1.0 A, can be used as power relay control
• Lamp driver, typically 1.0 A can also be used to drive an LED
• VPROT protected sensor supply tracks VCC +5.0 V regulator
• MCU reset generator -system integrity monitor (watchdog)
• VPP pre-regulator provides power for VCC and VPROT regulators
• Independent fault protection with all faults reported via the SPI
• ISO 9141 K-line interface for communicating diagnostic messages
• Start-up / shut-down control and power sequence logic
• Interfaces directly to MCU using a 5.0 V SPI and logic I/O
• Differential / single-ended VRS conditioning circuit with auto/manual
selected thresholds and filter times with digital and tachometer outputs
ONE CYLINDER SMALL ENGINE
CONTROL IC
98ASA00173D
AE SUFFIX (PB-FREE)
48-PIN LQFP-EP
Applications
Small Engine Control for:
• Lawn Mowers
• Motor Scooters
• Small Motorcycles
• Lawn Trimmers
• Snow Blowers
• Chain Saws
• Gasoline-driven Electrical Generators
• Outboard Motors
VBAT
Keyswitch
VBAT
MCU VCC
RESETB
+5.0 V
SPI
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
4
Crankshaft VRS
MC33813
KEYSW
VPWR
VPROT ROUT2
LAMPOUT
ROUT1
TACHOUT
VPPREF
VPPSENS
VCC
O2HFB
O2HOUT
O2HSENSP
RESETB
O2HSENSN
SPI
MRX
MTX
BATSW
RIN1
RIN2
IGNIN1
INJIN1
VRSOUT
O2HIN
VRSP
VRSN
GND
INJOUT1
ISO9141
IGNFB1
IGNOUT1
IGNSENSP
IGNSENSN
VBAT
MIL
TACHOMETER
VBAT
Injector
5.0 V Sensor Supply
Relay 2
(Power)
Relay 1
(Fuel Pump)
O2 Heater
VBAT
ISO9141
Figure 1. 33813 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., 2012. All rights reserved.
1 page  
3 Pin Connections
3.1 Pinout Diagram
Transparent Top View
O2HFB
O2HOUT
IGNSENSP
IGNSENSN
OH2SENSN
OH2SENSP
VRSOUT
VRSP
VRSN
CSB
VPWR
SCLK
48 47 46 45 44 43 42 41 40 39 38 37
1 36
2 35
3 34
4 33
5 32
6 31
7 30
8 29
9 28
10 27
11 26
12 25
13 14 15 16 17 18 19 20 21 22 23 24
RIN1
RIN2
O2HIN
IGNIN1
NC
INJIN1
NC
BATSW
MTX
MRX
TACHOUT
NC
3.2 Pin Definitions
Figure 3. 33813 Pin Connections
Table 2. 33813 Pin Definitions
A functional description of each pin can be found in the Functional Pin Description section beginning on page 24.
Pin
Pin Name
Pin
Function
Formal Name
Description
1
O2HFB
Input
O2 Sensor Heater Voltage feedback from drain of O2 Sensor Heater driver FET
Feedback Input
2
O2HOUT
Output
O2 Sensor Heater Pre-driver output for O2 Sensor Heater driven by SPI input or O2HIN pin
Output
3
IGNSENSP
Input
Ignition Current Positive input to the ignition current sense differential amplifier
Sense Input Positive Used to measure current in IGBT emitter resistor for IGNOUT1 and
IGNOUT2, if used.
4
IGNSENSN
Input
Ignition Current Negative input to the ignition current sense differential amplifier
Sense Input Negative Used to measure current in IGBT emitter resistor for IGNOUT1 and
IGNOUT2, if used.
5
O2HSENSN
Input
O2 Heater Current Negative input to the O2 heater current sense differential amplifier
Sense Input Negative Used to measure current in of O2 heater driver MOSFET source resistor, if
used.
Analog Integrated Circuit Device Data
Freescale Semiconductor
33813
5
5 Page 
Table 4. Power Input Static Electrical Characteristics
Characteristics noted under conditions of 6.0 V VPWR 18 V, -40 C TC 125 C, and Calibrated Timers, unless otherwise
noted. Where applicable, typical values reflect the parameter’s approximate average value with VPWR = 13 V, TA = 25 C.
Characteristic
Symbol Min Typ Max Unit
VOLTAGE REGULATOR OUTPUTS (VCC, VPROT) (CONTINUED)
VPROT Output Voltage (tracks VCC) IVCC = 100 mA, IVPROT = 50 mA 9.0 V<
VPWR < 18 V
VPROT Output Current Continuous
VCC Output Current Limiting
VPROT Output Current Limiting
Output Capacitance External (VCC and VPROT) without reverse protection diode
Line Regulation (Both VCC and VPROT) IVCC =100 mA, IPROT = 50 mA 9.0 V<
VPWR < 18 V
Load Regulation (Both VCC and VPROT) measured from 10% to 90% of IVCC_C
and IPROT_C, VPWR = 13 V
Dropout Voltage (Both VCC and VPROT) (Minimal Input/Output Voltage at full load,
tracks input below)
|VCC-VPROT|
IVPROT_C
IVCC_CL
IVPROT_CL
VOCE
REGLINE_VB
REGLOAD_VB
VDROPOUT
–
–
200
110
2.2
–
–
–
–
–
–
–
–
2.0
2.0
1.05
20 mV
100 mA
500 mA
260 mA
47 F
25 mV
25 mV
1.4 V
ALL LOW SIDE DRIVERS (INJ1, ROUT1, ROUT2, LAMPOUT, TACHOUT)
Output Fault Detection Voltage Threshold (9)
Outputs programmed OFF (Open Load)
Outputs programmed ON (Short to Battery)
VOUT (FLT-TH)
V
2.0 2.5 3.0
Output OFF Open Load Detection Current (INJ1, RELAY1, RELAY2 & LAMP)
• VDRAIN = 18 V, Outputs Programmed OFF
I(OFF)OCO
40
A
75 115
Output OFF Open Load Detection Current Tachout
10 – 30 A
Output Leakage Current
• VDRAIN = 24 V, Open Load Detection Disabled and Output commanded
OFF
IOUT (LKG)
–
– 20 A
Over-temperature Shutdown (OT) (10)
Over-temperature Shutdown Hysteresis(11)
Output Clamp Voltage
• ID = 20 mA
TLIM
155 – 185 C
TLIM (HYS)
5.0
10
15 C
VOC
V
48 53 58
INJOUT1
Drain-to-Source ON Resistance
• IOUT = 1.0 A TJ = 125 °C, VPWR = 13 V
• IOUT = 1.0 A TJ = 25 °C, VPWR = 13 V
• IOUT = 1.0 A TJ = -40 °C, VPWR = 13 V
RDS (ON)_INJx
RDS (ON)_INJx
RDS (ON)_INJx
–
–
–
–
0.4
–
Continuous current (not to exceed)
IOUT(CC)_INJ x
–
–
Output Self Limiting Current
IOUT (LIM)_INJx
1.6
–
Notes
9. These parameters are guaranteed by design. Production test equipment uses 1.0 MHz, 5.0 V SPI interface.
10. This parameter is guaranteed by design, however it is not production tested.
11. Programmable via SPI but variable with magnitude input frequency
0.6
–
–
1.3 A
3.0 A
Analog Integrated Circuit Device Data
Freescale Semiconductor
33813
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet PC33813.PDF ] | |
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