TPS2830, TPS2831 FAST SYNCHRONOUSĆBUCK MOSFET DRIVERS
WITH DEADĆTIME CONTROL
SLVS196C − JANUARY1999 − REVISED JANUARY 20...
TPS2830, TPS2831 FAST SYNCHRONOUSĆBUCK
MOSFET DRIVERS
WITH DEADĆTIME CONTROL
SLVS196C − JANUARY1999 − REVISED JANUARY 2001
D Floating Bootstrap or Ground-Reference
High-Side Driver
D Adaptive Dead-Time Control D 50-ns Max Rise/Fall Times and 100-ns Max
Propagation Delay − 3.3-nF Load
D Ideal for High-Current Single or Multiphase
Power Supplies
D 2.4-A Typical Peak Output Current D 4.5-V to 15-V Supply
Voltage Range D Internal Schottky Bootstrap Diode D SYNC Control for Synchronous or
Nonsynchronous Operation
D CROWBAR for OVP, Protects Against
Faulted High-Side Power FETs
D Low Supply Current....3-mA Typical D −40°C to 125°C Operating Virtual Junction
Temperature Range
D Available in SOIC and TSSOP PowerPAD
Packages
D PACKAGE (TOP VIEW)
ENABLE IN
CROWBAR NC
SYNC DT
PGND
1 2 3 4 5 6 7
14 13 12 11 10
9 8
ENABLE IN
CROWBAR NC
SYNC DT
PGND
PWP PACKAGE (TOP VIEW)
1 14 2 13 3 12 4 Thermal 11 5 Pad 10 69 78
NC − No internal connection
BOOT NC HIGHDR BOOTLO LOWDR NC VCC
BOOT NC HIGHDR BOOTLO LOWDR NC VCC
description
The TPS2830 and TPS2831 are
MOSFET drivers for synchronous-buck power stages. These devices are ideal for designing a high-performance power supply using switching controllers that do not have
MOSFET drivers. The drivers are designed to deliver 2.4-A peak currents into large capacitive loads. The high-side driver can be configured as a ground-reference driver or as a floating bootstrap driver. An adaptive dead-time control circuit eliminates shoot-through curren...