LT1336IS-PBF 查看數據表（PDF） - Linear Technology

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LT1336IS-PBF

Half-Bridge N-Channel Power MOSFET Driver with Boost Regulator

Linear Technology 

LT1336

Pin Functions

ISENSE (Pin 1): Boost Regulator ISENSE Comparator Input.

An RSENSE placed between Pin 1 and V + sets the maximum

peak current. Pin 1 can be left open if the boost regulator

is not used.

SV+ (Pin 2): Main Signal Supply. Must be closely decoupled

to the signal ground Pin 6.

INTOP (Pin 3): Top Driver Input. Pin 3 is disabled when

Pin 4 is high. A 3k input resistor followed by a 5V internal

clamp prevents saturation of the input transistors.

INBOTTOM (Pin 4): Bottom Driver Input. Pin 4 is disabled

when Pin 3 is high. A 3k input resistor followed by a 5V

internal clamp prevents saturation of the input transistors.

UVOUT (Pin 5): Undervoltage Output. Open collector

NPN output which turns on when V + drops below the

undervoltage threshold.

SGND (Pin 6): Small-Signal Ground. Must be routed

separately from other grounds to the system ground.

PGND (Pin 7): Bottom Driver Power Ground. Connects to

source of bottom N-channel MOSFET.

BGATEFB (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.

BGATEDR (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+ (Pin 10): Bottom Driver Supply. Must be connected

to the same supply as Pin 2.

TSOURCE (Pin 11): Top Driver Return. Connects to the top

MOSFET source and the low side of the bootstrap capacitor.

TGATEFB (Pin 12): Top Gate Feedback. Must connect

directly to the top power MOSFET gate. The bottom

MOSFET turn-on is inhibited until VTGATE FB – VTSOURCE

has discharged to below 2.9V.

TGATEDR (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.

SWGND (Pin 15): Boost Regulator Ground. Must be routed

separately from the other grounds to the system ground.

Pin 15 can be left open if the boost regulator is not used.

SWITCH (Pin 16): Boost Regulator Switch. Connect this

pin to the inductor/diode of the boost regulator network.

Pin 16 can be left open if the boost regulator is not used.

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