IR3892
PARAMETER
Reference Voltage
Feedback Voltage
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNIT
Vfb
VSeq=3.3V
0.5
V
0°C < Tj < 85°C
-1
+1
Accuracy
%
-40°C < Tj < 125°C,
Note 5
-1.5
+1.5
Soft Start
mV /
µs
Soft Start Ramp Rate
Ramp (SS_start)
ICC
0.14
7.8
0.18
9
0.22
10.4
Fault Protecion
A /
Phase
Current Limit
Vcc=5.5V, Tj = 25°C
Hiccup blanking time
OFLP Trip Threshold
OFLP Fault Prop Delay
OVP Trip Threshold
Tblk_Hiccup
OFLP(threshold)
OFLP(delay)
Note 4
20.48
70
ms
%Vref
µs
Fb Falling
65
0.1
115
75
0.5
125
0.3
OVP(threshold)
Vsns Rising
120
%Vref
Vsns falling from above
120% of Vref, Sync_FET
turns off afterwards
OVP Trip Threshold
Hysteresis
OVP_Hys
25
mV
OVP Comparator Delay
Thermal Shutdown
OVP(delay)
2
µs
°C
°C
Note 4
Note 4
140
20
Thermal Hysteresis
VCC-Start-Threshold
VCC_UVLO_Start VCC Rising Trip Level
VCC_UVLO_Stop VCC Falling Trip Level
4.0
3.7
4.2
3.9
4.4
4.1
V
VCC-Stop-Threshold
Input / Output Signals
Enable-Start-Threshold
Enable-Stop-Threshold
Enable leakage current
EN_UVLO_Start
EN_UVLO_Stop
Ien
Supply ramping up
Supply ramping down
Enable=3.3V
1.14
0.95
1.2
1
1.26
1.05
4.5
V
3
µA
Power Good upper
Threshold
Power Good lower
Threshold
Lower Threshold Delay
PGood Voltage Low
VPG(upper)
VPG(lower)
Vsns Rising
Vsns Falling
80
85
90
85
%Vref
75
1
80
%Vref
VPG(lower)_Dly
PG(voltage)
Vsns Rising
IPgood= -5mA
1.3
1.6
0.5
ms
V
Note:
4. Guaranteed by design but not tested in production.
5. Cold temperature performance is guaranteed via correlation using statistical quality control. Not tested in
production.
8
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© 2013 International Rectifier
August 02, 2013
INFINEON [ Infineon ]
