INFINEON TDA21107 User Manual
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Version 1.2, Aug 2004
Datasheet
DS-CoreControl-TDA21107
TDA21107
Published by Infineon Technologies AG
http://www.infineon.com/DCDC
Power Management & Drive
CoreControl
TM
Page 1 of 12 DS-CoreControl-TDA21107
Never stop thinking.
Contents:
Features………………………………………………………………………………………………………......3
Application……………………………………………………………………………………………………...…3
Pinout Drawing and Description………………………………………………………………………………...3
General Description……………………………………………………………………………………………...4
Block Diagram…………………………………………………………………………………………………….4
Application Circuit…...……………………………………………………………………………………………5
Absolute Maximum Rating.................................................................................................................... 6
Thermal Characteristic.......................................................................................................................... 7
Operation Condition.............................................................................................................................. 7
Electrical Characteristic ........................................................................................................................ 8
Outline Diemension………………………………………………………………………………………………9
Revision Histroy…..…………………………………………………………………………………………….10
Sales Office Worldwide.………………………………………………………………………………………..11
CoreControl
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Page 2 of 12 DS-CoreControl-TDA21107
High speed Driver with bootstrapping for
dual Power MOSFETs
Features:
• Fast rise and fall times for frequencies up to 1 MHz
• Adjustable High Side MOSFET gate drive voltage via external voltage supply to BOOT for optimizing
ON losses and gate drive losses ( 5V to 12V is recommended )
• Prevents from cross-conducting by adaptive gate drive control
• Supports shut-down mode for very low quiescent current through three-state input
• Compatible to standard PWM controller ICs (IFX, Intersil, Analog Devices, Richtek)
• Floating High Side MOSFET drive
• Power-on Overvoltage Protection
• Footprint compatible to ADP3418
• Ideal for multi-phase Desktop CPU supplies on motherboards and VRM´s
Application:
P-DSO-8
• Voltage Regulator Modules
• Low Output Voltage High Output Current DC-DC Converters
• Half-Bridge Class D Amplifier
Type Package Marking Ordering Code
TDA21107 P-DSOP-8 21107 Q67042-S4251
Pinout Drawing and Description:
CoreControl
TM
Page 3 of 12 DS-CoreControl-TDA21107
V
General Description
The dual high speed driver is designed to drive a wide range of N-Channel low side and N-Channel high
side MOSFETs with varying gate charges. It has a small propagation delay from PWM input pin to
GATE
addition it provides several protection features as well as a shut down mode for efficiency reasons.
and GATELS, short rise and fall times and the same pin configuration as the ADP3418. In
HS
Target application
The dual high speed driver is designed to work well in half-bridge type circuits where dual N-Channel
MOSFETs are utilized. A circuit designer can fully take advantage of the driver´s capabilities in high-
efficiency, high-density synchronous DC/DC converters that operate at high switching frequencies, e.g.
in multi-phase converters for CPU supplies on motherboards and VRM´s but also in motor drive and half
bridge class-D amplifier type applications.
Block Diagram
VCC
PWM
Internal 5V
Control
Logic
Shoot
Through
Protection
Power-
LS
Driver
CC
HS
Driver
BOOT
GATE
PHAS
GATE
GND
HS
LS
CoreControl
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Page 4 of 12 DS-CoreControl-TDA21107
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