INT200
Low-side Driver IC
Low-side Drive and High-side Control
with Simultaneous Conduction Lockout
Product Highlights
5 V CMOS Compatible Control Inputs
• Combines logic inputs for low and high-side drives
• Schmidt-triggered inputs for noise immunity
Built-in High-voltage Level Shifters
• Integrated level shifters simplify high-side interface
• Can withstand up to 800 V for direct interface to the
INT201 high-side driver
• Pulsed high-voltage level shifters reduce power
consumption
Gate Drive Output for an External MOSFET
• Provides 300 mA sink/150 mA source current
• Can drive MOSFET gate at up to 15 V
• External MOSFET allows flexibility in design for various
motor sizes
Built-in Protection Features
• Simultaneous conduction lockout protection
• UV lockout
HV
®
INT201
VDD
HS IN
INT200
LS IN
3-PHASE
BRUSHLESS
DC MOTOR
PI-11762-012396
Figure 1. Typical Application
Description
The INT200 Low-side driver IC provides gate drive for an
external low-side MOSFET switch and high-side level shifting.
When used in conjunction with the INT201 high-side driver, the
INT200 provides a simple, cost-effective interface between
low-voltage control logic and high-voltage loads. The INT200
is designed to be used with rectified 110 V or 220 V supplies.
Both high-side and low-side switches can be controlled
independently from ground-referenced 5 V logic inputs on the
low side driver.
Built-in protection logic prevents both switches from turning
on at the same time and shorting the high voltage supply. Pulsed
level shifting saves power and provides enhanced noise
immunity. The circuit is powered from a nominal 15 V supply
to provide adequate gate drive for external N-channel MOSFETs.
Applications include motor drives, electronic ballasts, and
uninterruptible power supplies. The INT200 can also be used
to implement full- bridge and multi-phase configurations.
The INT200 is available in 8-pin plastic DIP and SOIC packages.
HS IN
1
8
7
6
5
VDD
N/C
HSD1
HSD2
LS IN
2
LS OUT
COM
3
4
PI–284C–072291
Figure 2. Pin Configuration.
ORDERING INFORMATION
PART
NUMBER
INT200PFI1
INT200TFI1
INT200PFI2
INT200TFI2
PACKAGE
OUTLINE
P08A
T08A
P08A
T08A
ISOLATION
VOLTAGE
600 V
600 V
800 V
800 V
January 1996
POWERINT [ POWER INTEGRATIONS, INC. ]
