Freescale Semiconductor, Inc.
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Document order number: MC33395/D
Rev 2.0, 01/2004
Advance Information
Three-Phase Gate Driver IC
The 33395 simplifies the design of high-power BLDC motor control design by
combining the gate drive, charge pump, current sense, and protection circuitry
necessary to drive a three-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 MOSFETs or high-side MOSFETs of the bridge, or
to provide complementary PWM outputs to both the low- and high-sides of the
bridge.
33395
33395T
THREE-PHASE
GATE DRIVER IC
Freescale Semiconductor, Inc...
Detection and drive circuitry are also incorporated to control a reverse battery
protection high-side MOSFET switch. PWM frequencies up to 28 kHz are
possible. Built-in protection circuitry prevents damage to the MOSFET bridge as
well as the drive IC and includes overvoltage shutdown, overtemperature
shutdown, overcurrent shutdown, and undervoltage shutdown.
The device is parametrically specified over an ambient temperature range of
-40擄C
鈮?/div>
T
A
鈮?/div>
125擄C and 5.5 V
鈮?/div>
V
IGN
鈮?/div>
24 V supply.
Features
鈥?Drives Six N-Channel Low R
DS(ON)
Power MOSFETs
鈥?Built-In Charge Pump Circuitry
鈥?Built-In Current Sense Comparator and Output Drive Current Limiting
鈥?Built-In PWM Mode Control Logic
鈥?Built-In Circuit Protection
鈥?Designed for Fractional to Integral HP BLDC Motors
鈥?32-Terminal SOIC Wide Body Surface Mount Package
鈥?33395 Incorporates a <5.0
碌s
Shoot-Through Suppression Timer
鈥?33395T Incorporates a <1.0
碌s
Shoot-Through Suppression Timer
DWB SUFFIX
CASE 1324-02
32-TERMINAL SOICW
ORDERING INFORMATION
Device
MC33395DWB/R2
MC33395TDWB/R2
Temperature
Range (T
A
)
-40擄C to 125擄C
Package
32 SOICW
33395 Simplified Application Diagram
V
PWR
33395
V
DD
V
GDH
V
IGN
V
DD
CP
1H
CP
1L
CP
2H
CP
2L
C
RES
3
2
3
V
IGNP
GDH1
GDH2
GDH3
SRC1
SRC2
SRC3
N
S
N
H
S
H
H
MCU
HSE1鈥?
MODE0鈥? GDL1
GDL2
PWM
LSE1鈥? GDL3
-I
SENS
AGND
PGND
+I
SENS
V
DD
This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
漏 Motorola, Inc. 2004
For More Information On This Product,
Go to: www.freescale.com
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