935311297557 datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > Analog mixed-signal IC> The signal circuit> 935311297557

935311297557: DescriptionAnalog Circuit; CategoryAnalog mixed-signal IC The signal circuit; File Size3MB，71 Pages; ManufacturerNXP; Websitehttps://www.nxp.com

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935311297557 Overview

Analog Circuit

935311297557 Parametric

Parameter Name	Attribute value
Maker	NXP
package instruction	,
Reach Compliance Code	unknown
Analog Integrated Circuits - Other Types	ANALOG CIRCUIT

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NXP Semiconductors

Technical Data

Document Number: MC33814

Rev. 12.0, 8/2018

Two cylinder small engine control 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 < V

PWR

< 36 V

• Start-up/shutdown control and power sequence logic with KEYSW input

• MCU supply: V

is a 5.0 V (±2.0 %, 200 mA) regulated supply

• Sensor supply: V

PROT

(100 mA) is a V

tracking protected sensor supply

• Three configurable pre-drivers for IGBT or general purpose gate MOSFETs for

ignition and O

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, R

DS(on)

= 0.6 Ω, I

LIMIT

= 1.8 A, to drive typical 12 Ω

high-impedance injectors

• Relay 1 driver, R

DS(on)

= 0.4 Ω, I

LIMIT

= 3.0 A, to drive fuel pump

• Relay 2 driver, R

DS(on)

= 1.5 Ω, I

LIMIT

= 1.2 A, to drive power relay

• Lamp driver, R

DS(on)

= 1.5 Ω, I

LIMIT

= 1.2 A, to drive warning lamp or an LED

• Programmable Tachometer Driver, R

DS(on)

= 20 Ω, I

shutdown

= 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

BAT

Keyswitch

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

MC33814

KEYSW VPROT ROUT2

VPWR

LAMPOUT

VPPREF

ROUT1

TACHOUT

VPPSENS

O2HFB

O2HOUT

VCC

O2HSENSP

RESETB

O2HSENSN

BAT

MIL

5.0 V Sensor Supply

Relay 2

(Power)

Relay 1

(Fuel Pump)

MCU

TACHOMETER

O2 Heater

+5.0 V

RESETB

SPI

GPIO

SPI

MRX

MTX

BATSW

RIN1

RIN2

IGNIN1

IGNIN2

INJIN1

INJIN2

VRSOUT

O2HIN

VRSP

VRSN

GND

BAT

INJOUT1

Injectors

INJOUT2

ISO9141

IGNFB1

IGNOUT1

IGNFB2

IGNOUT2

IGNSENSP

IGNSENSN

ISO9141

BAT

Crankshaft VRS

Figure 1. 33814 simplified application diagram

Table of Contents

Orderable parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Internal block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.1 Pinout diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.2 Pin definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

General product characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.1 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.2 Static electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.3 Dynamic electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.4 Timing diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.5 Typical electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

General IC functional description and application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.1 System controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.2 Watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.3 System reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.4 Power supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.5 Drivers blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.6 Pre-driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

5.7 VRS circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

5.8 ISO9141 bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

5.9 Mode code and revision number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

5.10 SPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

5.11 SPI registers mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Typical applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

6.1 Output OFF open load fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

6.2 Low voltage operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

6.3 Low-side injector driver voltage clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

6.4 Reverse battery protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

7.1 Package mechanical dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

33814

NXP Semiconductors

935311297557 Related Products

	935311297557	935311297528
Description	Analog Circuit	Analog Circuit
Maker	NXP	NXP
Reach Compliance Code	unknown	unknown
Analog Integrated Circuits - Other Types	ANALOG CIRCUIT	ANALOG CIRCUIT

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