ZL1505
ZL1505 is Synchronous Step-Down MOSFET Drivers manufactured by Intersil.
Features
- High-speed, high-current drivers for synchronous N-channel MOSFETs
- Adaptive dead-time control optimizes efficiency when used with Digital-DC controllers
- Integrated 30V bootstrap Schottky diode
- Capable of driving 40A per phase
- Supports switching frequency up to 1.4MHz
- >4A source, >5A sink low-side driver
- >3A source/sink high-side driver
- <10ns rise/fall times, low propagation delay
- Adjustable gate drive strength optimizes efficiency for different VIN, VOUT, IOUT, FSW and MOSFET binations
- Internal non-overlap watchdog prevents shoot-through currents
Applications- (see page 12)
- High efficiency, high-current DC/DC buck converters with digital control and PMBus™
- Multi-phase digital DC/DC converters with phase adding/dropping
- Power train modules
- Synchronous rectification for secondary side isolated power converters
Related Literature- (see page 12)
- FN6846 ZL2004 Data Sheet
HSEL VDD PWMH Level shift PWML
Shootthrough Protection
BST GH SW
GND LSEL
FIGURE 1. ZL1505 BLOCK DIAGRAM
December 4, 2009 FN6845.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2009. All Rights Reserved All other trademarks mentioned are the property of their respective owners.
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Typical Application Circuit
The following application circuit represents the typical implementation of the ZL1505 (Notes 1, 2).
VIN 4.5-14V
VBIAS 4.5-7.5V
VIN VDD VMON
LSEL HSEL BST VDD
Power Train Module
GH SW PWMH
PWMH
ZL2004
PWML XTEMP SGND VSE N+ VSE NISENA ISENB
PWMH PWML...