IR3312(S)

2

WWW.IRF.COM

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 = 25

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.

Symbol

Parameter

Min.

Max.

Units

Vcc - Vin max

Maximum input voltage

-16

50

Vcc-VIfb max

Maximum Ifb voltage

-0.3

50

Vcc - Vout max.

Maximum output voltage

-0.3

33

Ids cont.

Diode max. permanent current (Rth = 60 °C/W) (1)

—

2.8

Ids1 cont

Diode max. permanent current (Rth = 5 °C/W) (1)

—

25

Ids pulsed

Diode max. pulsed current (1)

—

100

ESD 1

Electrostatic discharge ( human body model )C=100pF, R=1500

Ω,

—

4

ESD 2

Electrostatic discharge (machine model)C=200pF,R=0

Ω, L=10µH

—

0.5

Pd

Power dissipation ( Rth = 60 °C/W )

—

2

W

TJ max.

Max. storage and junction temperature

-40

150

°C

Min RIfb

Minimum resistor on the Ifb pin

0.3

—

k

Ω

Ifb max

Max. Ifb current

-20

+20

mA

V

A

kV

Recommended Operating Conditions

These values are given for a quick design. For operation outside these conditions, please consult the application notes.

Symbol

Parameter

Min.

Max.

Units

Vcc -Vin

Continuous input voltage

6

28

Vcc -VIfb

Continuous Ifb pin voltage

0.3

28

Vcc

Supply to power ground voltage

6

28

Iout

Continuous output current ( Rth/amb < 5 °C/W, Tj = 125°C)

—

14

Iout 85°C amb.

Continuous output current ( Rth/amb < 60 °C/W, Tj = 125°C)

—

3.9

RIfb

Ifb resistor to program Isd and scale (2 & 3)

0.5

3.5

k

Ω

Pulse min.

Minimum turn-on pulse width

1

—

ms

Fmax

Maximum operating frequency

—

500

Fmax Prot.

Maximum frequency with protections activated

—

200

V

A

Hz

Thermal Characteristics

Symbol

Parameter

Typ.

Max.

Units

Rth 1

Thermal resistance junction to Ambient - TO220

60

—

Rth 2

Thermal resistance junction to case - TO220

0.7

—

Rth 1

Thermal resistance with standard footprint - SMD220

60

—

Rth 2

Thermal resistance with 1" square footprint - SMD220

35

—

Rth 3

Thermal resistance junction to case - SMD220

0.7

—

°C/W