NCP5393 ON Semiconductor, NCP5393 Datasheet - Page 3

• Manufacturer Part Number: NCP5393
• Description: 2/3/4-Phase Controller
• Manufacturer: ON Semiconductor

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NB_DIFFOUT
NB_DROOP
NB_CSN
DIFFOUT
ENABLE
NB_COMP
12VMON
NB_VS-
NB_VS+
NB_CS
NB_FB
DROOP
ROSC
COMP
VCCA
CS1N
CS2N
CS3N
CS4N
VS-
ILIM
VS+
CS1
CS2
CS3
CS4
FB
1.3 V
Droop Amplifier
1.3 V
Gain = 1
Gain = 1
Droop Amplifier
f
NB
Oscillator
= 1.27 x f
Oscillator
Gain
= 6
Gain = 6
Gain = 6
Gain = 6
8.5V/7.5V
+
+
+
4.25V/4.05V
-
-
+
+
-
-
-
+
-
+
-
Gain = 6
VDD
5V UVLO
12V UVLO
NB
Diff Amp
Error Amp
Error Amp
Diff Amp
+
+
-
-
+
+
-
-
VDD
+
1.3 V
1.3 V
Figure 2. NCP5393 Block Diagram
+
+
+
NCP5393
+
BOOT_VID & VFIX MODES
VDD_SRL OUT
BOOT_VID & VFIX MODES
http://onsemi.com
+
NORMAL OPERATION
NORMAL OPERATION
NB_SRL
OUT
NCP5393
ILIMIT_VDD/N
ILIMIT_NB =
phase count)
ILIMIT_VDD
(N = VDD
ILIMIT_NB
3
Rate Lim‐
it
NB Slew
VDD Slew
Rate Limit
VDD_DAC
VDD_SRL
+
+
+
+
-
-
-
-
NB_DAC
PWM1
PWM2
PMW3
PWM4
PWM_NB
+
NB_SRL
NB_VS+
NB_VS-
+
-
-
+
-
VS+
VS-
+
+
VDD_DAC OUT
NB_DAC OUT
OVP
NB OFFSET
SHED
VDD OFFSET
SCALING
V
NB REGULATOR
SCALING
DD
Monitor Circuits
Monitor Circuits
OVP
X
X
Fault Logic
Fault Logic
Detection
REGULATOR
3-Phase
FAULT
HI-Z
and
and
INTERFACE
HI-Z
HI-Z
HI-Z
HI-Z
HYBRID
PVI/SVI
FAULT
VDD
NB
4OFF
VDD PSI_L
VDD PSI_L
MID
MID
MID
MID
MID
FLAG
GND
NB_G
NB_OFFSET
PWRGOOD
PWROK
VID0
VID2/SVD
VID3/SVC
PSI_L
OFFSET
G1
G2
G3
G4
DRVON
VID1
VID4
VID5
NB_DRVON