IR2177S International Rectifier, IR2177S Datasheet - Page 12
![no-image](/images/manufacturer_photos/0/3/338/international_rectifier_sml.jpg)
IR2177S
Manufacturer Part Number
IR2177S
Description
600V Phase Current Sensing IC for AC Motor Control in a 16-Lead SOIC package. Ratiometric analog output suitable for DSP A/D interface.
Manufacturer
International Rectifier
Datasheet
1.IR2177S.pdf
(20 pages)
Specifications of IR2177S
Family Hvic
General Purpose HVICs
Channels
1
Topology
Current Sense
Application
General Purpose / Motor Control
Voffset
600
Over Current Protection
Yes
Package
16 Lead
Part Status
Active & Preferred
12
Triangular
SYNC (0)
Dn =
PO
1
V
V
IN +
IN -
T
off
T
cycle
_
T
cycle
off_cycle1
1
2
H igh voltage
Cycle 1
T
cycle1
O ver current
detection
Figure 9: Over current block diagram
Dn =
2
Figure 8: PO Duty Cycle
T
T
off
T
off_cycle2
cycle
_
cycle
Cycle 2
2
T
3
cycle2
Low voltage
T
S
R
Dn =
off_cycle3
3
Cycle 3
T
D
cycle3
T
off
T
cycle
_
IR2277S/IR2177S(PbF)
cycle
3
4
T
V
O C
P O
off_cycle4
S S
supply
Cycle 4
E xt
www.irf.com