L6730C STMicroelectronics, L6730C Datasheet - Page 19
![IC CTRLR ADJ STPDN SYNC 20-TSSOP](/photos/7/59/75992/l6730_sml.jpg)
L6730C
Manufacturer Part Number
L6730C
Description
IC CTRLR ADJ STPDN SYNC 20-TSSOP
Manufacturer
STMicroelectronics
Type
Step-Down (Buck)r
Datasheet
1.L6730DTR.pdf
(50 pages)
Specifications of L6730C
Internal Switch(s)
No
Synchronous Rectifier
Yes
Number Of Outputs
1
Voltage - Output
Adj to 0.6V
Frequency - Switching
100kHz ~ 1MHz
Voltage - Input
1.8 ~ 14 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
20-TSSOP Exposed Pad, 20-eTSSOP, 20-HTSSOP
Package
HTSSOP20, QFN4x4 24L
For Use With
497-5868 - EVAL BOARD 30A 400KHZ L6730497-5501 - EVAL BOARD FOR L6730XX
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Output
-
Power - Output
-
L6730C - L6730D
5.7
Figure 10. Dead times
Driver section
The high-side and low-side drivers allow using different types of power MOSFETs (also multiple
MOSFETs to reduce the R
supplied by V
time control avoids MOSFETs cross-conduction maintaining very short dead time duration (see
Figure
The control monitors the phase node in order to sense the low-side body diode recirculation. If
the phase node voltage is less than a certain threshold (-350mV typ.) during the dead time, it
will be reduced in the next PWM cycle. The predictive dead time control doesn’t work when the
high-side body diode is conducting because the phase node doesn’t go negative. This situation
happens when the converter is sinking current for example and, in this case, an adaptive dead
time control operates.
10.).
CCDR
while the high-side driver is supplied by the BOOT pin. A predictive dead
DS(on)
), maintaining fast switching transitions. The low-side driver is
Device description
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