Document Number: MC34GD3000
Rev. 3.0, 5/2016
NXP Semiconductors
Data sheet: Advance Information
Three phase field effect transistor
pre-driver
34GD3000
Industrial
The 34GD3000 is a field effect transistor (FET) pre-drivers designed for three
phase motor control and similar applications. The integrated circuit (IC) uses
SMARTMOS technology.
THREE PHASE PRE-DRIVER
The IC contains three high-side FET pre-drivers and three low-side FET pre-
drivers. Three external bootstrap capacitors provide gate charge to the high-
side FETs.
The IC interfaces to a MCU via six direct input control signals, an SPI port for
device setup and asynchronous reset, enable and interrupt signals. Both 5.0 V
and 3.3 V logic level inputs are accepted and 5.0 V logic level outputs are
provided.
Features
• Extended supply voltage operating range: 6.0 V to 60 V
• Wide dead time range (50 ns to 12 μs) programmable via the SPI port
• Gate drive capability of 1.0 A to 2.5 A
EP SUFFIX (Pb-FREE)
98ASA00654D
56-PIN QFN
• Charge pump ensures sufficient external FET drive at low supply voltages
• Device protection against reverse charge-injection from CGD and CGS of
external FETS
• Integrated overcurrent, desaturation, and phase fault-detection
• Immunity against positive or negative transient voltage spikes on the gate
driver
Applications
• 12 V - 48 V 3-phase brushless DC (BLDC) motors
and permanent magnet synchronous motors (PMSM)
• Pool pumps, hospital beds, electric scooters
• Industrial robotics, pumps and fans
• Portable power tools, commercial fans/blowers
• Small kitchen appliances
• Current shoot-through protection built into dead time control
• Supports direct 3.3 V and 5.0 V logic interface to MCUs
• Integrated current sensing amplifier
• Device configuration and diagnostics through the SPI
V
SYS
34GD3000
VPUMP
VSUP
PUMP
VPWR
PA_HS_G
PB_HS_G
PC_HS_G
VLS
VDD
VSS
PA_HS_S
PB_HS_S
PC_HS_S
3
3
3
PX_HS
PX_LS
PHASEX
CS
PA_LS_G
PB_LS_G
PC_LS_G
MCU
SI
OR
DSP
SCLK
SO
PX_LS_S
RST
INT
EN1
EN2
AMP_P
AMP_N
AMP_OUT
R
SEN
GND
Figure 1. 34GD3000 simplified application diagram
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© 2016 NXP B.V.