FAN73933 Half-Bridge Gate Driver
December 2009
FAN73933
Half-Bridge Gate Drive IC
Features Description
Floating Channel for Bootstrap Operation to +600V The FAN73933 is a half-bridge, gate-drive IC with pro-
grammable dead-time control functions that can drive
Typically 2.5A/2.5A Sourcing/Sinking Current Driving
high-speed MOSFETs and IGBTs operating up to +600V.
Capability
It has a buffered output stage with all NMOS transistors
Extended Allowable Negative V Swing to -9.8V for
S
designed for high-pulse-current driving capability and
Signal Propagation at V =15V
BS
minimum cross-conduction.
Output in Phase with Input Signal
Fairchilds high-voltage process and common-mode
3.3V and 5V Input Logic Compatible
noise canceling techniques provide stable operation of
Matched Propagation Delay for Both Channels
the high-side driver under high dv/dt noise circum-
Built-in UVLO Functions for Both Channels
stances. An advanced level-shift circuit offers high-side
Built-in Common-Mode dv/dt Noise Cancelling Circuit
gate driver operation up to V =-9.8V (typical) for
S
Programmable Dead-Time Control Function
V =15V.
BS
Internal 220ns Minimum Dead Time at R =0
DT
The UVLO circuit prevents malfunction when V and
DD
V are lower than the specified threshold voltage.
BS
Applications
The high-current and low-output voltage drop feature
makes this device suitable for diverse half- and full-
High-Speed Power MOSFET and IGBT Gate Driver
bridge inverters; motor drive inverters, switching mode
Induction Heating
power supplies, induction heating, and high-power DC-
High-Power DC-DC Converter
DC converter applications.
Synchronous Step-Down Converter
Motor Drive Inverter
14-SOP
Ordering Information
Operating
Eco
Part Number Package Temperature Packing Method
Status
Range
FAN73933M 14-Lead, Small Outline Integrated Tube
Circuit (SOIC), Non-JEDEC, .150 -40C to +125C RoHS
FAN73933MX Tape & Reel
Inch Narrow Body, 225SOP
For Fairchilds definition of Eco Status, please visit: FAN73933 Half-Bridge Gate Driver
DRIVER DRIVER
PULSE
GENERATOR
Typical Application Diagrams
Up to 600V
+15V
R D
BOOT BOOT
FAN73933
Controller
HIN
HIN
1 NC 14
R1
LIN
LIN
2 V 13
B
3 V HO 12
SS
R2
R C
BOOT
DT
4 DT V 11 Load
S
5 10
COM NC
R3
6 LO NC 9
NC
7 V 8
DD
R4
Figure 1. Typical Application Circuit
Internal Block Diagram
13 V
B
UVLO
12
HO
HS(ON/OFF) R
HIN 1 R
NOISE
CANCELLER S
Q
250K
11
SCHMITT V
S
TRIGGER INPUT
LIN 2 7
V
DD
SHOOT THOUGH
250K
UVLO
PREVENTION
R
DTINT
VSS/COM
DT 4 DEAD-TIME LS(ON/OFF) DELAY 6
LO
LEVEL
{ DTMIN=220ns }
SHIFT
V 3
SS
5 COM
Pin 8, 9, 10 and 14 are no connection
Figure 2. Functional Block Diagram
2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN73933 Rev. 1.0.0 2