MC33099 View Datasheet(PDF) - Motorola => Freescale

Part Name

Description

Manufacturer

MC33099

ALTERNATOR VOLTAGE REGULATOR

Motorola => Freescale 

Simplified Block Diagram

Remote

Vrem

Vrs

CB1

Local

Local

Sense

Phase

Phase

Filter

0.6 V

Vl

Crs

LB

Vls

R1

R2

RF

Vo

Low

Pass

Cf

S1 R4

CB2

R5

R3

Cph

S2

Vhvl

F1

DAC

1.25 V

F2

101 kHz

Osc

To

Logic

÷16

4 LSB 4 MSB

8-Bit Counter

÷256

A/D Duty Cycle

u/d

Up/Down

Comparator

Control

& Tracking

Circuit

Switch

Digital

Duty Cycle

Generator

U/D

Counter

u/d

Np

FB

Vfb

Bandgap

Reference

Regulator

(OTC)

1.25 V

UV

Cuv

1.25 V

LD

Over

Voltage

Detector OV

Cdc

Vdac

1

2

10

A

11

N

MUX

D

3

Battery

VDD

Regulator

Internal

Vreg

and Bias

Current

Regulator

Charge

Pump

Regulator

Vg

Vref

(2.0 V)

VDD

(5.0 V)

Min Duty

Cycle

Generator

OR1

Gate

Polling

Circuit

Css

Ign

Delay

Circuit

A

N

D

4

Battery

VTssc

A

N

D

1

OR2

Cign

Drain

Polling

Circuit

1.25V

VTigm Iign

Cds

A

Lamp

Z2

N

Driver

D

Circuit

2

lpu

S3

Gate

Z1

lpd

Source

IGN

Battery

VTdsc

Lamp

Drain

Lamp

Gate

Lamp

Polling

Circuit

Thermal

Limit

Detector

Current

Limit

Detector

Dtl

Rs

LCR Test

LCR1 LRC2

AGnd

Gnd

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