IR21771STRPBF International Rectifier, IR21771STRPBF Datasheet - Page 10

• Manufacturer Part Number: IR21771STRPBF
• Description: IC CURRENT SENSE 16SOIC
• Manufacturer: International Rectifier

Specifications of IR21771STRPBF

• Function: Current Sense
• 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: -
• Accuracy: -
• Sensing Method: -

10
Triangular
SYNC (0)
Dn =
PO
1
T
V
V
off
IN+
T
IN-
cycle
_
T
cycle
off_cycle1
1
2
Cycle 1
T
cycle1
High voltage
Dn =
Over current
detection
Figure 9: Over current block diagram
2
T
T
Figure 8: PO Duty Cycle
off
T
off_cycle2
cycle
_
cycle
Cycle 2
2
T
3
cycle2
T
Low voltage
Dn =
off_cycle3
IR22771S/IR21771S(PbF)
3
Cycle 3
T
S
R
cycle3
T
off
T
D
cycle
_
cycle
3
4
T
off_cycle4
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Cycle 4
OC
V
PO
SS
supply
Ext