1
Half-Bridge Gate Driver
TF2104
www.tfsemi.com
July 2017
Rev. 1.2
Features
Floating high-side driver in bootstrap operation to 600V
Drives two N-channel MOSFETs or IGBTs in a half bridge
conguration
290mA source/600mA sink output current capability
Outputs tolerant to negative transients
Internal dead time of 520ns to protect MOSFETs
Wide low side gate driver supply voltage: 10V to 20V
Logic input (IN and SD*) 3.3V capability
Schmitt triggered logic inputs
Undervoltage lockout for V
CC
(logic and low side supply)
Extended temperature range: -40°C to +125°C
Description
The TF2104 is a high voltage, high speed gate driver
capable of driving N-channel MOSFETs and IGBTs in a half
bridge conguration. TF Semiconductor’s high voltage
process enables the TF2104’s high side to switch to 600V in
a bootstrap operation.
The TF2104 logic inputs are compatible with standard
TTL and CMOS levels (down to 3.3V) to interface easily
with controlling devices. The driver outputs feature high
pulse current buers designed for minimum driver cross
conduction. TF2104 has a xed internal deadtime of 520ns
(typical).
The TF2104 is oered in PDIP-8 and SOIC-8(N) packages and
operate over an extended -40 °C to +125 °C temperature
range.
Typical Application
Ordering Information
PART NUMBER PACKAGE PACK / Qty MARK
TF2104-3AS PDIP-8 Tube / 50
YYWW
TF2104
Lot ID
TF2104-TAU SOIC-8(N) Tube / 100
YYWW
TF2104
Lot ID
TF2104-TAH SOIC-8(N) T&R / 2500
Applications
DC-DC Converters
AC-DC Inverters
Motor Controls
Class D Power Ampliers
Year Year Week Week
SOIC-8(N)
PDIP-8
R4
SD*
TF2104
IN
V
CC
HO
V
B
V
S
COM LO
TO
LOAD
Up to 600V
V
CC
IN
SD*
2
TF2104
Half-Bridge Gate Driver
July 2017
Advance Info
Pin Descriptions
Pin Diagrams
PIN NAME PIN NUMBER PIN DESCRIPTION
V
CC
1 Logic and low side supply
IN 2 Logic input for high-side and low-side gate driver outputs (HO and LO), in phase with HO
SD* 3 Logic input for shutdown, enabled low
COM 4 Low-side and logic return
LO 5 Low-side gate drive output
V
S
6 High-side oating supply return
HO 7 High-side gate drive output
V
B
8 High-side oating supply
IN
COM
LO
1
2
3
4
8
7
6
5
SD*
V
S
V
CC
HO
V
B
Top View: PDIP-8, SOIC-8
TF2104
Functional Block Diagram
Q
R
S
HV Level
Shift/
Pulse
Filter
Pulse
Gen
UV
Detect
Delay
High Voltage Well
V
B
Vs
Vcc
HO
SD*
IN
Dead
time
V
CC
V
CC
LO
COM
TF2104
UV
Detect
R