IR3312(S)
Absolute Maximum Ratings
Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters
are referenced to Vcc lead. (TAmbient = 25oC unless otherwise specified).
Symbol
Vcc - Vin max
Vcc-VIfb max
Vcc - Vout max.
Ids cont.
Ids1 cont
Ids pulsed
ESD 1
ESD 2
Pd
TJ max.
Min RIfb
Ifb max
Parameter
Maximum input voltage
Maximum Ifb voltage
Maximum output voltage
Diode max. permanent current (Rth = 60 °C/W) (1)
Diode max. permanent current (Rth = 5 °C/W) (1)
Diode max. pulsed current (1)
Electrostatic discharge ( human body model )C=100pF, R=1500Ω,
Electrostatic discharge (machine model)C=200pF,R=0Ω, L=10µH
Power dissipation ( Rth = 60 °C/W )
Max. storage and junction temperature
Minimum resistor on the Ifb pin
Max. Ifb current
Min.
-16
-0.3
-0.3
—
—
—
—
—
—
-40
0.3
-20
Max.
50
50
33
2.8
25
100
4
0.5
2
150
—
+20
Units
V
A
kV
W
°C
kΩ
mA
Thermal Characteristics
Symbol
Parameter
Rth 1
Rth 2
Rth 1
Rth 2
Rth 3
Thermal resistance junction to Ambient - TO220
Thermal resistance junction to case - TO220
Thermal resistance with standard footprint - SMD220
Thermal resistance with 1" square footprint - SMD220
Thermal resistance junction to case - SMD220
Typ.
60
0.7
60
35
0.7
Max.
—
—
—
—
—
Units
°C/W
Recommended Operating Conditions
These values are given for a quick design. For operation outside these conditions, please consult the application notes.
Symbol
Vcc -Vin
Vcc -VIfb
Vcc
Iout
Iout 85°C amb.
RIfb
Pulse min.
Fmax
Fmax Prot.
Parameter
Continuous input voltage
Continuous Ifb pin voltage
Supply to power ground voltage
Continuous output current ( Rth/amb < 5 °C/W, Tj = 125°C)
Continuous output current ( Rth/amb < 60 °C/W, Tj = 125°C)
Ifb resistor to program Isd and scale (2 & 3)
Minimum turn-on pulse width
Maximum operating frequency
Maximum frequency with protections activated
Min.
6
0.3
6
—
—
0.5
1
—
—
Max.
28
28
28
14
3.9
3.5
—
500
200
Units
V
A
kΩ
ms
Hz
1) Limited by junction temperature. Pulsed current is also limited by wiring
2) <500 Ohm or shorting Ifb to gnd may damage the part with Isd around 37A
3) >5000 Ohm or leaving Ifb open will shutdown the part. No current will flow in the load.
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