AUIR33401STRL International Rectifier, AUIR33401STRL Datasheet - Page 4

• Manufacturer Part Number: AUIR33401STRL
• Description: T&R / Automotive Grade Intelligent Power Switch 1 Channel High Side Driver In A D2-Pak 7-Lead Package
• Manufacturer: International Rectifier
• Series: -r
• Type: High Sider

Specifications of AUIR33401STRL

• Input Type: Non-Inverting
• Number Of Outputs: 1
• On-state Resistance: 3 mOhm
• Current - Output / Channel: 33A
• Current - Peak Output: 50A
• Voltage - Supply: 2.8 V ~ 3 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: TO-263-7, D²Pak (6 leads + Tab)
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Active dv/dt control to reduce EMI Typical Connection
The AUIR33401S includes a special gate drive, managing the Mosfet dv/dt controlled internally, by managing the gate
voltage dynamically. To have the best compromise between the EMI levels and power loss, during the turn on and off
phase, the dv/dt output is dv/dt is not linear. The output voltage shape is an “S” shape.
Sense Load current feedback and programmable current shutdown
The Ifbk pin allows an analog measurement of the load current and with an external resistor allows to program the over
current shutdown level from 10A to 33A. The voltage threshold level of the Ifbk pin is internally set to 4V (See the formulas
below). It is also possible to dynamically adjust the current shutdown protection versus time by adding some external
components. This protection is latched. The operating mode is recovered after resetting by the sleep mode.
Internal over current shutdown
The maximum current shutdown threshold value is internally fixed to 50A typ. This protection is latched. The operating
mode is recovered after resetting by the sleep mode.
Under voltage lock-out
The AUIR33401S remains operational from UV Lo threshold. Under this continuous voltage, the device will be locked until
the voltage recovers the operating range, according to an internal hysteresis fixed to 0,5V min. The maximum rating
voltage is given by the Trench VDMOS technology where the avalanche voltage is up to 43V typically.
Sleep mode and reset fault:
The sleep mode is enabled if the IN pin stay low (Vin < V
Icc off. The AUIR33401S wakes up at first rise edge on the IN pin (Vin > V
latched faults. (Cf. Figure 2: Wake sequence, sleep mode and reset latched fault.)
Wake up sequence:
The AUIR33401S has a power on reset. After wake up it by the IN signal, the devices wait for T
output power mosfet. This time is necessary to charge properly the bootstrap capacitor and to stabilize the internal power
supply. (Cf. Figure 2: Wake sequence, sleep mode and reset latched fault.)
Rifbk
Ishtd
max
=
Imax
=
Vifbk
Vifbk
Rifbk
appli
−
ww.irf.com
−
calculated
gnd
gnd
+
Offset
min
max
×
×
Ratio
Ratio
max
min
+
Offset
in µpower
) more than Tslp time. The consumption in sleep mode is
© 2007 International Rectifier
Where:
Imax appli is the maximum application current
Ishtd max is the maximum output shutdown current
in µpower
). This mode allows resetting all the
pwr_on_rst
AUIR33401S
before activate the
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