®
INT202
Low-side Driver IC
Low-side Drive and High-side Control
for Simultaneous Conduction
Product Highlights
5 V CMOS Compatible Control Inputs
• Combines logic inputs for low and high-side drives
• Schmidt-triggered inputs for noise immunity
HV
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
INT201
• Pulsed high-voltage level shifters reduce power
consumption
LOAD
V
DD
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
HS IN
LS IN
INT202
PI-1765-020296
Built-in Protection Features
• UV lockout
Figure 1. Typical Application
Description
1
8
7
6
5
HS IN
V
DD
The INT202 Low-side driver IC provides gate drive for an
externallow-sideMOSFETswitchandhigh-sidelevelshifting.
WhenusedinconjunctionwiththeINT201high-sidedriver,the
INT202 provides a simple, cost-effective interface between
low-voltage control logic and high-voltage loads. The INT202
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.
2
LS IN
N/C
3
4
LS OUT
COM
HSD1
HSD2
PI–539–091191
Figure 2. Pin Configuration.
Pulsed level shifting saves power and provides enhanced noise
immunity. The circuit is powered from a nominal 15 V supply
toprovideadequategatedriveforexternalN-channelMOSFETs.
ORDERING INFORMATION
PART
PACKAGE
OUTLINE
ISOLATION
VOLTAGE
NUMBER
INT202PFI1
INT202TFI1
INT202PFI2
INT202TFI2
Applications include switched reluctance motor drives. The
INT202 can also be used to implement multi-phase
configurations.
PO8A
TO8A
PO8A
TO8A
600 V
600 V
TheINT202isavailablein8-pinplasticDIPandSOICpackages.
800 V
800 V
February 1996
POWERINT [ Power Integrations ]
