IR22771S/IR21771S(PbF) 
4
      www.irf.com
 
Pin: PO
 
Symbol
Definition
Min
Typ
Max
Units
Test
Conditions
V
POs
 
Input offset voltage measured by PWM
output
-50
 
20
mV
R
pull-up
=500 &
f
sync
 = 4, 20kHz
V
threshold
=2.75V
Ext supply=5V
(See Figure 6)
 
V
POs
 /
T
Input offset voltage temperature drift
 
TBD
 
礦/癈
 
V
Pos
 
offset between samples on channel1
and channel2 measured at PO (See
Note1)
-10
 
10
mV
f
sync
 = 10kHz
See Figure 6
 
G
p
 
PWM Output Gain
-38
-40.5     -42.5
%/V
V
in
=?50mV
 
G
p
 /
Tj   PWM Output Gain Temperature Drift
 
TBD
 
%/(V
*
篊)
 
CMRR
PO
PO Output common mode (V
S
) rejection
 
0.2
 
m%/V
V
S
-V
SS
 = 0,
600V
f
sync
 = 10kHz
V
Polin
 
PO Linearity
 
0.07
0.2
%
f
sync
 = 10kHz
 V
lin
/
Tj   PO Linearity Temperature Drift
 
TBD
 
%/篊
f
sync
 = 10kHz
V
thPO
 
PO threshold for OC reset
0.8
 
1.6
V
OC active (See
Figure 4
)
PSRR PO PSRR for PO Output
 
0.2
%/V
V
CC
=V
BS
=
8,20V
R
onPO
 
PO On Resistance
25
 
75
&
@ I = 2mA
See Figure 3
 
Note1: Refer to PO output description for channels definition
 
 
 
Figure 3: PO and OC open collector circuit 
 
PO
or
OC
V
SS
Internal signal
R
ON
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