Datasheet

UCC27511
UCC27512
SLUSAW9E –FEBRUARY 2012–REVISED DECEMBER 2013 www.ti.com
Table 3. UCC27511 TERMINAL FUNCTIONS
TERMINAL I/O
FUNCTION
PIN NUMBER NAME
1 VDD I Bias supply input.
Sourcing current output of driver. Connect resistor between OUTH and Gate of
2 OUTH O
power-switching device to adjust turnon speed.
Sinking current output of driver. Connect resistor between OUTL and Gate of
3 OUTL O
power-switching device to adjust turnoff speed.
4 GND - Ground: All signals referenced to this pin.
Inverting input: When the driver is used in non-inverting configuration, connect IN-
5 IN- I
to GND in order to enable output, OUT held LOW if IN- is unbiased or floating
Non-inverting input: When the driver is used in inverting configuration, connect IN+
6 IN+ I
to VDD in order to enable output, OUT held LOW if IN+ is unbiased or floating
Table 4. UCC27512 TERMINAL FUNCTIONS
TERMINAL I/O FUNCTION
PIN NUMBER NAME
1 IN+ I Non-inverting input: When the driver is used in inverting configuration, connect IN+
to VDD in order to enable output, OUT held LOW if IN+ is unbiased or floating.
2, 5 GND - Ground: All signals referenced to this pin. TI recommends to connect pin 2 and pin 5
on PCB as close to the device as possible.
3 VDD I Bias supply input.
4 OUT O Sourcing/sinking current output of driver.
6 IN- I Inverting input: When the driver is used in non-inverting configuration, connect IN-
to GND in order to enable output, OUT held LOW if IN- is unbiased or floating.
Table 5. Device Logic Table
IN+ PIN IN- PIN OUTH PIN OUTL PIN OUT
(OUTH and OUTL pins
tied together in the
UCC27511)
L L High impedance L L
L H High impedance L L
H L H High impedance H
H H High impedance L L
x
(1)
Any High impedance L L
Any x
(1)
High impedance L L
(1) x = Floating Condition
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