ADP3210 Datasheet, PDF (15/38 Pages) ON Semiconductor – 7-Bit Programmable Multiphase Mobile CPU Synchronous

ADP3210
Table 4. Phase Number and Operation Modes
VID Transient
PSI DPRSLP Period¹
Hit Current
Limit
DNC² DNC²
Yes
DNC²
1
0
No
DNC²
0
0
No
No
0
0
No
Yes
DNC² 1
No
No
DNC² 1
No
Yes
No. of Phases
Selected by User
N 3, 2, or 1
N 3, 2, or 1
DNC²
DNC²
DNC²
DNC²
No. of Phases
in Operation
N
N
Phase 1 only
N
Phase 1 only
N
Operation Mode
PWM, CCM³ only
PWM, CCM³ only
RPM, CCM³ only
PWM, CCM³ only
RPM, automatic CCM³/DCM⁴
PWM, CCM³ only
1 _{VID transient period is the time period following any VID change, including entrance and exit of deeper sleep mode. The duration of VID transient period is the same}
as that of PWRGD masking time.
2 _{DNC means do not care.}
3 _{CCM means continuous conduction mode}
4 _{DCM means discontinuous conduction mode.}
IR = AR × IRAMP
VRMP
FLIP-FLOP
S
Q
CR
1V
RD
400ns
Q
Q
FLIP-FLOP
S
Q
RD
R2
R1
30mV
R2
R1
1V
COMP
VDC
+–
+ _VCS
–
+
+
FB
FBRTN LLINE CSCOMP
RA
CA
CFB
CB
RFB
PWM1
DCM1
SW1
GATE DRIVER
DRVH
IN _SW
DRVLSD
DRVL
VCC
RI L
PWM2
5V
OD
SW2
CSREF
GATE DRIVER
IN DRVH
SW
SD _DRVL
VCC
RI
L
CSSUM
RCS
CCS
RPH
R PH
Figure 21. Single-Phase RPM Mode Operation
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