IR2177STRPBF International Rectifier, IR2177STRPBF Datasheet - Page 12

• Manufacturer Part Number: IR2177STRPBF
• Description: IC CURRENT SENSE 0.2% 16SOIC
• Manufacturer: International Rectifier

Specifications of IR2177STRPBF

• Function: Current Sense
• Accuracy: ±0.2%
• Voltage - Input: 8 ~ 20 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (0.300", 7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Sensing Method: -

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
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