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PDF 33814 Data sheet ( Hoja de datos )
| Número de pieza | 33814 | |
| Descripción | Two cylinder small engine control IC | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de 33814 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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NXP Semiconductors
Data sheet: Technical Data
Document Number: MC33814
Rev. 9.0, 10/2016
Two cylinder small engine control IC
Powered by SMARTMOS technology, the 33814 delivers a cost-optimized IC
solution for managing one and two-cylinder engines. With six drivers, three pre-
drivers, a 5.0 V regulator for the MCU, a protected external sensor supply, and a
high level of integration, the IC offers an ideal response to contemporary market
requirements. The innovative VRS system optimizes noise immunity under
cranking conditions. Diagnostic and protection features present on all outputs allow
applications to operate with greater safety.
Features:
• Operates over supply voltage range of 4.5 V < VPWR < 36 V
• Start-up/shut-down control and power sequence logic with KEYSW input
• MCU supply: VCC is a 5.0 V (±2.0%, 200 mA) regulated supply
• Sensor supply: VPROT (100 mA) is a VCC tracking protected sensor supply
• Three configurable pre-drivers for IGBT or general purpose gate MOSFETs for
ignition and O2 sensor (HEGO) heater:
• PWM
• Overcurrent shutdown
• Short-to-battery shutdown
• Six low-side drivers with full diagnostics, self-protection and PWM control:
• Two fuel injector drivers, RDS(on) = 0.6 Ω, ILIMIT = 1.8 A, to drive typical 12 Ω
high-impedance injectors
• Relay 1 driver, RDS(on) = 0.4 Ω, ILIMIT = 3.0 A, to drive fuel pump
• Relay 2 driver, RDS(on) = 1.5 Ω, ILIMIT = 1.2 A, to drive power relay
• Lamp driver, RDS(on) = 1.5 Ω, ILIMIT = 1.2 A, to drive warning lamp or an LED
• Programmable Tachometer Driver, RDS(on) = 20 Ω, Ishutdown = 60 mA, to drive
a Tachometer display
• Innovative configurable VRS conditioning circuit, with two different parameter
settings for engine cranking and running mode and an optional automatic mode
to improve noise immunity in cranking conditions
• K-line (ISO9141)
• MCU reset generator and programmable watchdog
• MCU Interface: 16-bit SPI and parallel interface with 5.0 V IO capability
.
33814
TWO CYLINDER SMALL ENGINE
CONTROL IC
98ASA00737D
AE SUFFIX (PB-FREE)
48-PIN LQFP-EP
Applications:
Small Engine Control for:
• Motor scooters
• Small motorcycles
• Lawn mowers
• Lawn trimmers
• Snow blowers
• Chain saws
• Gasoline-driven electrical generators
• Outboard motors
VBAT
Keyswitch
VBAT
MCU
VCC
+5.0 V
RESETB
SPI
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
4
Crankshaft VRS
MC33814
KEYSW
VPWR
VPROT ROUT2
LAMPOUT
VPPREF
ROUT1
VPPSENS
TACHOUT
O2HFB
VCC
O2HOUT
O2HSENSP
RESETB
O2HSENSN
SPI
MRX
MTX
BATSW
RIN1
RIN2
IGNIN1
IGNIN2
INJIN1
INJIN2
VRSOUT
O2HIN
VRSP
VRSN
GND
INJOUT1
INJOUT2
ISO9141
IGNFB1
IGNOUT1
IGNFB2
IGNOUT2
IGNSENSP
IGNSENSN
VBAT
MIL
TACHOMETER
5.0 V Sensor Supply
Relay 2
(Power)
Relay 1
(Fuel Pump)
O2 Heater
VBAT
Injectors
VBAT
ISO9141
VBAT
Figure 1. 33814 simplified application diagram
© 2016 NXP B.V.
1 page  
3 Pin connections
3.1 Pinout diagram
Transparent Top View
O2HFB
O2HOUT
IGNSENSP
IGNSENSN
O2HSENSN
O2HSENSP
VRSOUT
VRSP
VRSN
CSB
VPWR
SCLK
1
2
3
4
5
6
7
8
9
10
11
12
36 RIN1
35 RIN2
34 O2HIN
33 IGNIN1
32 IGNIN2
EP 31 INJIN1
30 INJIN2
29 BATSW
28 MTX
27 MRX
26 TACHOUT
25 NC
3.2 Pin definitions
Figure 3. 33814 Pin connections
Table 2. 33814 pin definitions
Pin
Pin Name
Pin
Function
Formal Name
Description
1
O2HFB
Input
O2 Sensor Heater Voltage feedback from drain of O2 Sensor Heater driver FET. If used as IGBT driver,
Feedback Input voltage feedback from collector of IGBT through 10:1 voltage divider (9R:1R).
2
O2HOUT
Output
O2 Sensor Heater
Output
Pre-driver output for O2 Sensor Heater driven by SPI input or O2HIN pin
3
IGNSENSP
Input
Ignition Current
Sense Input Positive
Positive input to the ignition current sense differential amplifier.
Measures current in IGBT emitter resistor (or MOSFET source resistor) for IGNOUT1
and IGNOUT2, if used
4
IGNSENSN
Input
Ignition Current
Sense Input Negative
Negative input to the ignition current sense differential amplifier.
Measures current in IGBT emitter resistor (or MOSFET source resistor) for IGNOUT1
and IGNOUT2, if used
5
O2HSENSN
Input
O2 Heater Current
Sense Input Negative
Negative input to the O2 heater current sense differential amplifier.
Measures current in of O2 heater driver MOSFET source resistor (or IGBT emitter
resistor), if used
6
O2HSENSP
Input
O2 Heater Current
Sense Input Positive
Positive input to the O2 heater current sense differential amplifier.
Measures current in of O2 heater driver MOSFET source resistor (or MOSFET source
resistor) for IGNOUT1 and IGNOUT2, if used
7
VRSOUT
Output
VRS Conditioned
Output
5.0 V Logic Level Output from conditioned VRS differential inputs VRSP, VRSN
NXP Semiconductors
33814
5
5 Page 
Table 4. Power input static electrical characteristics
Characteristics noted under conditions of 6.0 V ≤ VPWR ≤ 18 V, -40 °C ≤ TCASE ≤ 125 °C and Calibrated Timers, unless otherwise noted.
Where applicable, typical values reflect the parameter’s approximate average value with VPWR = 14 V, TA = 25 °C.
Symbol
Characteristic
Min.
Typ.
Max.
Unit Notes
VOLTAGE REGULATOR OUTPUTS (VCC, VPROT) (CONTINUED)
VCC VCC Output Voltage 0 ≤ IVCC ≤ IVCC_C
REGLINE_VB
Line Regulation (Both VCC and VPROT)
IVCC =100 mA, IPROT = 50 mA, 9.0 V< VPWR < 18 V
REGLOAD_VB
Load Regulation (Both VCC and VPROT) measured from 10% - 90% of
IVCC_C and IPROT_C, VPWR = 13 V
VDROPOUT_VCC/ Dropout Voltage (Both VCC and VPROT) (Minimal Input/Output Voltage
VPROT
IVCC = 100 mA, IVPROT = 50 mA, tracks input below)
ALL LOW-SIDE DRIVERS (INJOUT1, INJOUT2, ROUT1, ROUT2, LAMPOUT, TACHOUT)
4.9
-
-
-
5.0 5.1
V
2.0 25 mV
20 35 mV
- 500 mV
VOUT (FLT-TH)
Output Fault Detection Voltage Threshold, Outputs programmed OFF
(Open Load), Outputs programmed ON (Short to Battery)
2.0
2.5
3.0
V (9)
I(OFF)OCO
Output OFF Open Load Detection Current (INJ1, INJ2, RELAY1,
RELAY2 AND LAMP)
• VDRAIN = 18 V, Outputs Programmed OFF
40 75 115 μA
I(OFF)TACH
IOUT (LKG)
TLIM
TLIM (HYS)
VOC
Output OFF Open Load Detection Current TachOut
Output Leakage Current
• VDRAIN = 24 V, Open Load Detection Disabled and Output
commanded OFF
Overtemperature Shutdown (OT)
Overtemperature Shutdown Hysteresis
Output Clamp Voltage
• ID = 20 mA
10 - 30 μA
- - 20 μA
155 - 185 °C (9)
5.0 10 15 °C (9)
48 53 60
V
INJOUT1, INJOUT2
RDS (ON)_INJx
IOUT (LIM)_INJx
ROUT1
Drain-to-Source ON Resistance
• IOUT = 1.0 A TJ = 150 °C, VPWR = 13 V
Output Self Limiting Current
- - 0.6 Ω
1.8 - 3.0 A
RDS (ON)_R1
Driver Drain-to-Source ON Resistance
• IOUT = 700 mA, TJ = 150 °C, VPWR = 13 V
- - 0.4 Ω
IOUT(LIM)_R1 Output Self-limiting Current (Has inrush current timer)
3.0 - 6.0 A
ROUT2
RDS (ON)_R2
IOUT (LIM)_R2
LAMPOUT
Driver Drain-to-Source ON Resistance
• IOUT = 350 mA, TJ = 150 °C, VPWR = 13 V
Output Self-limiting Current
- - 1.5 Ω
1.2 - 2.4 A
RDS (ON)_LAMP
Driver Drain-to-Source ON Resistance
• IOUT = 1.0 A, TJ = 150 °C, VPWR = 13 V
- - 1.5 Ω
IOUT(LIM)_LAMP Output Self-limiting Current (Has inrush current timer)
1.2 - 2.4 A
Notes
9. This parameter is guaranteed by design, however it is not production tested.
NXP Semiconductors
33814
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet 33814.PDF ] | |
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