LT1162ISW#TRPBF Linear Technology, LT1162ISW#TRPBF Datasheet - Page 6

• Manufacturer Part Number: LT1162ISW#TRPBF
• Description: IC PWR MOSFET DRIVER NCH 24SOIC
• Manufacturer: Linear Technology

Specifications of LT1162ISW#TRPBF

• Configuration: Half Bridge
• Input Type: Non-Inverting
• Delay Time: 250ns
• Current - Peak: 1.5A
• Number Of Configurations: 2
• Number Of Outputs: 4
• High Side Voltage - Max (bootstrap): 60V
• Voltage - Supply: 10 V ~ 15 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LT1160
SV
to the signal ground Pin 5.
IN TOP (Pin 2): Top Driver Input. Pin 2 is disabled when Pin
3 is high. A 3k input resistor followed by a 5V internal
clamp prevents saturation of the input transistors.
IN BOTTOM (Pin 3): Bottom Driver Input. Pin 3 is disabled
when Pin 2 is high. A 3k input resistor followed by a 5V
internal clamp prevents saturation of the input transistors.
UV OUT (Pin 4): Undervoltage Output. Open collector NPN
output which turns on when V
undervoltage threshold.
SGND (Pin 5): Small Signal Ground. Must be routed
separately from other grounds to the system ground.
PGND (Pin 6): Bottom Driver Power Ground. Connects to
source of bottom N-channel MOSFET.
B GATE FB (Pin 8): Bottom Gate Feedback. Must connect
directly to the bottom power MOSFET gate. The top
MOSFET turn-on is inhibited until Pin 8 has discharged to
below 2.5V.
B GATE DR (Pin 9): Bottom Gate Drive. The high current
drive point for the bottom MOSFET. When a gate resistor
is used it is inserted between Pin 9 and the gate of the
MOSFET.
PV
the same supply as Pin 1.
T SOURCE (Pin 11): Top Driver Return. Connects to the
top MOSFET source and the low side of the bootstrap
capacitor.
T GATE FB (Pin 12): Top Gate Feedback. Must connect
directly to the top power MOSFET gate. The bottom
MOSFET turn-on is inhibited until V
to below 2.9V.
T GATE DR (Pin 13): Top Gate Drive. The high current drive
point for the top MOSFET. When a gate resistor is used it
is inserted between Pin 13 and the gate of the MOSFET.
BOOST (Pin 14): Top Driver Supply. Connects to the high
side of the bootstrap capacitor.
LT1160/LT1162
PIN
6
+
+
U
(Pin 1): Main Signal Supply. Must be closely decoupled
(Pin 10): Bottom Driver Supply. Must be connected to
FUNCTIONS
U
U
12
+
– V
drops below the
11
has discharged
LT1162
SV
decoupled to ground Pins 5 and 11.
IN TOP (Pins 2, 8): Top Driver Input. The Input Top is
disabled when the Input Bottom is high. A 3k input resistor
followed by a 5V internal clamp prevents saturation of the
input transistors.
IN BOTTOM (Pins 3, 9): Bottom Driver Input. The Input
Bottom is disabled when the Input Top is high. A 3k input
resistor followed by a 5V internal clamp prevents satura-
tion of the input transistors.
UV OUT (Pins 4, 10): Undervoltage Output. Open collector
NPN output which turns on when V
undervoltage threshold.
GND (Pins 5, 11): Ground Connection.
B GATE FB (Pins 6, 12): Bottom Gate Feedback. Must
connect directly to the bottom power MOSFET gate. The
top MOSFET turn-on is inhibited until Bottom Gate Feed-
back pins have discharged to below 2.5V.
B GATE DR (Pins 13, 19): Bottom Gate Drive. The high
current drive point for the bottom MOSFET. When a gate
resistor is used it is inserted between the Bottom Gate
Drive pin and the gate of the MOSFET.
PV
nected to the same supply as Pins 1 and 7.
T SOURCE (Pins 15, 21): Top Driver Return. Connects to
the top MOSFET source and the low side of the bootstrap
capacitor.
T GATE FB (Pins 16, 22): Top Gate Feedback. Must
connect directly to the top power MOSFET gate. The
bottom MOSFET turn-on is inhibited until V
has discharged to below 2.9V.
T GATE DR (Pins 17, 23): Top Gate Drive. The high current
drive point for the top MOSFET. When a gate resistor is
used it is inserted between the Top Gate Drive pin and the
gate of the MOSFET.
BOOST (Pins 18, 24): Top Driver Supply. Connects to the
high side of the bootstrap capacitor.
+
+
(Pins 14, 20): Bottom Driver Supply. Must be con-
(Pins 1, 7): Main Signal Supply. Must be closely
+
drops below the
TGF
– V
TSOURCE
11602fb