Analog Devices EVAL-LTC7066-AZ User Manual

150V Half-Bridge Driver with Floating Grounds and Adjustable Dead-Time

General Description

The EVAL-LTC7066-AZ evaluation circuit is a half-bridge
driver that drives two N-channel MOSFETs. The two 5V
logic-compatible PWM inputs independently drive each of
the two N-channel gate outputs to each MOSFET. The
eval kit has several unpopulated PCB pads to help
facilitate the user in customizing the board for their
application.
Performance Summary (T
PARAMETER
Logic Input Supply (VIN-LOGIC)
Power Input Supply (VIN-POWER)
Maximum Output Current
PWM Control Frequency
Maximum PWM Control Voltage

Quick Start Procedure

The EVAL-LTC7063-AZ can be evaluated without connecting any additional components or a load. However, the user
may find adding two load resistors, as shown in
can configure their own application circuit. Test with a resistor divider as a load:
1. Connect two 100Ω power resistors to the SW node, as shown in
2. Apply VIN-POWER supply.
3. Apply VIN-LOGIC supply.
4. Apply two 5V, 1kHz square-wave signals 180° apart with a 48% duty cycle, as shown below. Limiting the duty
cycle to 48% and staggering them 180° apart will ensure no shoot-through.
Rev 0
O n e A n a l o g W a y , W i l m i n g t o n , M A 0 1 8 8 7 - 2 3 5 6 , U . S . A .
= 25°C)
A
CONDITIONS
Figure 1, provides a better means for evaluating. Alternatively, the user
DOCUMENT FEEDBACK
T e l : 7 8 1 . 3 2 9 . 4 7 0 0
Evaluation Board User Guide
EVAL-LTC7066-AZ
The LTC7066 driver has a powerful 0.8Ω pull-down and
1.5Ω pull-up MOSFET drivers driving two 150V N-channel
MOSFETs. The gate drivers on the LTC7066 are capable
of driving MOSFETs with different ground references;
however, this eval kit has these ground references
committed.
Design files for this circuit board are available.
MIN
6
Figure 1.
© 2 0 2 3 A n a l o g D e v i c e s , I n c . A l l r i g h t s r e s e r v e d .
TYP MAX UNITS
14
150
10
2,000+
5.5
TECHNICAL SUPPORT
V
V
A
kHz
V