PM6670S View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'PM6670S' PDF : 54 Pages View PDF
PM6670S
6
Block diagram
Block diagram
Figure 27. Functional and block diagram
VREF
VOSC
VTTSNS
LDOIN
VTT
VTTGND
VTTREF
SGND
Vr = 0.9V
1.236V
Bandgap
Ton
1-shot
Level
shifter
Ton
min
1-shot
Anti Cross
Conduction
TD
Toff
min
1-shot
NTD
HIZ
BEN
NTD
R
R
UVP/OVP
Zero Crossing &
Current Limit
_
VREF
+
SWEN
Vr +10%
+
gm -
Vr
-
+
+
-
Vr
Vr -10%
BOOT
HGATE
PHASE
VCC
LGATE
PGND
CSNS
COMP
PG
AVCC
DDRSEL
DSCG
UVLO
SWEN TD NTD BEN HIZ
Thermal Shutdown
DDR3
VSNS
NTD
CONTROL LOGIC
adj fix
S3
S5 MODE
Table 7. Legend
SWEN
Switching controller enable
TD
Tracking discharge enable
NTD
Non-tracking discharge enable
BEN
VTTREF buffer enable
HIZ
LDO high impedance mode enable
Doc ID 14432 Rev 4
19/54
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