IR3519 Datasheet, PDF (1/10 Pages) International Rectifier – Synchronous MOSFET GateDriver IC

IR3519
Synchronous MOSFET Gate Driver IC
FEATURES
ƒ 7V/2A gate drivers (5A GATEL sink current)
ƒ 15ns adaptive non-overlap control
ƒ Integrated boot-strap synchronous PFET
ƒ Supports 3.3V and 5V PWM input signals
ƒ Tri-State PWM input for power stage shutdown
ƒ Sub 50ns minimum pulse width supports 2MHz per-
phase operation
ƒ Dual function EN/UV pin provides Enable input and
power good output
ƒ Small thermally enhanced 8L SON & 3 x 3mm MLPD
packages
ƒ RoHS compliant
DESCRIPTION
The IR3519 is extended voltage range high-speed gate
driver optimized for switching power supply
applications. Performance is achieved by 7V/2A gate
source and 5-A sink drive capability and is capable of
operating at frequencies of up to 2MHz.
The 0.4-Ω impedance of the lower gate driver holds the
gate of the Synchronous MOSFET below its threshold
to prevent shoot-through current during high dv/dt
phase node transitions.
The IR3519 includes a two-way enable/under voltage
power good signal. Systems without 3-state featured
controllers can use the EN/UV input/output to hold both
outputs low during converter shut down.
APPLICATION CIRCUIT
ORDER INFORMATION
Device
IR3519MTRPBF
* IR3519MPBF
IR3519STRPBF
* IR3519SPBF
* Samples only
Package
8 Lead MLPD (3 x 3 mm body)
8 Lead MLPD (3 x 3 mm body)
8 Lead SON
8 Lead SON
Page 1 of 10
www.irf.com
Order Quantity
3000 per reel
100 piece strips
2500 per reel
95 per tube
8/15/08