FAN7093 データシートの表示（PDF） - Fairchild Semiconductor

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FAN7093

High-Current PN Half-Bridge Driver

Fairchild Semiconductor 

Ordering Information

Part Number

FAN7093_F085

Operating

Temperature Range

Package

-40 to +150°C

8-Lead, TO263, Molded, JEDEC Variation CA

Packing

Method

Tape & Reel

Block Diagram

Figure 2. Block Diagram

The FAN7093 is a high-current half-bridge that contains

three separate chips in one package: one P-channel

high-side MOSFET, one N-channel low-side MOSFET,

and with a control IC. All three chips are mounted on

one common lead frame, using chip-on-chip and chip–

by-chip technologies. The power MOSFETs are vertical

MOS transistors to ensure minimum on-state resistance.

Using a P-channel high-side switch eliminates a charge

pump and reduces EMI. A microcontroller is able to

control the logic level inputs of IN and /INH of the half-

bridge. The diagnostic pin IS is a current output stage

that delivers a proportional current through the P-

channel and N-channel MOSFETS, depending on which

is being activated, with the IN or /INH pin forcing

conditions. In case of a short to VBATT or ground, the

IS pin acts as an error flag. The error flag can be

detected as a logic HIGH level through an attached

microcontroller. In an over-current situation, the control

IC turns off the MOSFETs and tries to turn them back

on after a cool down time of 140 μs (typical). The control

IC protects the MOSFETs against over-voltage, under–

voltage, and over–temperature conditions. The dead

time, to prevent shoot-through between the P- and N-

channel MOSFET, is also generated by the control IC.

The slew rate of the outputs can be adjusted through an

external resistor connected to the SR pin. The FAN7093

can be combined with another FAN7093 to form a full-

bridge drive. Multiple FAN7093 can be combined in full-

or half-bridge three-phase drive configurations.

© 2010 Fairchild Semiconductor Corporation

FAN7093 • Rev. 1.0.6

2

www.fairchildsemi.com

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