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MC33395 : Three-Phase MOSFET predriver

The MC33395 combines gate drive, charge pump, current sense, and protection circuitry necessary to drive 3-phase bridge configuration of six N-channel power MOSFETs. Mode logic is incorporated to route a pulse width modulation (PWM )signal to either the low-side FETs or high-side FETS of the bridge, or to provide complementary PWM outputs to both the low and high sides of the bridge. Pulse width modulation frequencies up to 28 kHz are possible. Very few external components are required to implement the 3-phase bridge gate driver: Three tiny capacitors for the charge pump, a current sense resistor, and a few current limit comparator biasing resistors. Built-in protection circuitry prevents damage to the MOS- FET bridge as well as the drive IC, and includes: overvoltage shutdown, over-temperature shutdown, overcurrent shut- down, undervoltage shutdown, reverse battery detect and supply cut-off (via external reverse battery MOSFET).

MC33395 Features

Designed for fractional to integral hp BLDC motors

MC33395 Parametrics

Characteristics

Package

Number of Analog Channels

High/Low

Ron (mOhm)

Current Limit

Standby Current

Protection

Control

Status Reporting

Availability

Input Control

Output Drive Current

Operating Voltage

Three-channel high side/three channel low side MOSFET driver with fault report pin, mode selectable

32 SOICW

6

H/L

N/A

Internal comparator

60mA

Current limit, Temp sense

Parallel comm

No status

1Q02

1 CMOS logic

3H, 3L

7.0 to 20V

MC33395 Documentation

Brochure

ID	Name	Format	Size K	Rev #	Date Last Modified	Order Availability
APDPAK/D	Analog ICs Portfolio Package	html	0	0	1/31/2002
BR1567/D	Analog ICs Integrated Solutions Technology	pdf	5416	0	1/16/2002
BR1568/D	Analog ICs Integrated Solutions Packaging	pdf	1411	0	1/11/2002
BR1569/D	Analog ICs Integrated Solutions Applications	pdf	2363	0	1/11/2002

Fact Sheets

ID	Name	Format	Size K	Rev #	Date Last Modified	Order Availability
MC33395FS/D	Analog Products MC33395 Fact Sheet	pdf	510	0	1/16/2002

Selector Guide

ID	Name	Format	Size K	Rev #	Date Last Modified	Order Availability
SG1002/D	Analog SPS Sales Guide	pdf	869	0	6/27/2002

Orderable Parts Information

PartNumber	Package Info	Life Cycle Description (code)	Remarks	Budgetary Price QTY 1000+ ($US)	Order Availability
PC33395DWB	32 SOICW	PRODUCT NEWLY INTRO'D/RAMP-UP(1)	-	$2.31	-