33395

Features:

• Drives Six N-Channel Low RDS(ON) Power MOSFETs
• Built-In Charge Pump Circuitry
• Built-In Current Sense Comparator and Output Drive Current Limiting
• Built-In PWM Mode Control Logic
• Built-In Circuit Protection
• Designed for Fractional to Integral HP BLDC Motors
• 32-Terminal SOIC Wide Body Surface Mount Package
• 33395 Incorporates a <5.0 µs Shoot-Through Suppression Timer
• 33395T Incorporates a <1.0 µs Shoot-Through Suppression Timer


Pinout




Specifications

Rating	Symbol	Value	Unit
VIGN Supply Voltage	VIGN	-15.5 to 40	VDC
VIGNP Load Dump Survival	VIGNPLD	-0.3 to 65	VDC
VDD Logic Supply Voltage (Fail Safe)	VDD	-0.3 to 7.0	VDC
Logic Input Voltage (LSEn, HSEn, PWM, and MODEn)	VIN	0.3 to 7.0	VDC
Start Up Current VIGNP	IVIGNStartUp	100	mA
ESD Voltage Human Body Model (Note 1) Machine Model (Note 2)	VESD1 VESD2	±500 ±200	V
Storage Temperature	TSTG	-65 to 160
Operating Ambient Temperature	TA	-40 to 125
Operating Case Temperature	TC	-40 to 125
Maximum Junction Temperature	TJ	150
Power Dissipation (TA = 25)	PD	1.5	W
Terminal Soldering Temperature	TSOLDER	240
Thermal Resistance, Junction-to-Ambient	RJA	65	/W

Description

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.

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 T_A 125 and 5.5 V V_IGN 24 V supply.