IR2121_15 Datasheet, PDF (5/16 Pages) International Rectifier – CURRENT LIMITING LOW SIDE DRIVER

IR2121 & (PbF)
IN
CS
ERR
OUT
Figure 1. Input/Output Timing Diagram
Figure 2. Switching Time Test Circuit
IN
ton
50%
50%
tr
90%
toff
tf
90%
OUT
10%
10%
Figure 3. Switching Time Waveform Definitions
CS
OUT
50%
t _cs
90%
Figure 4. ERR Shutdown Waveform Definitions
50%
CS
tcs
HO
90%
Figure 5. CS Shutdown Waveform Definitions
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50%
CS
terr
ERR
50%
1.8V
dt
dt = C × ^dV = C × ^1.8V
I_ERR
100 uA
Figure 6. CS to ERR Waveform Definitions
5