Expand menu
Hello, Sign in
My Account
0
Cart
Home
Products
Sensors
Semiconductors
Passive Components
Connectors
Power
Electromechanical
Optoelectronics
Circuit Protection
Integrated Circuits - ICs
Main Products
Manufacturers
Blog
Services
About OMO
About Us
Contact Us
Check Stock
NCP3218AMNR2G
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P24
P25-P27
P28-P30
P31-P33
P34-P35
ADP3212A, NCP3218A
http://onsemi.com
10
TEST CIRCUITS
Figure 3. Closed
−
Loop Output V
oltage Accuracy
Figure 4. Current Sense
Amplifier
, V
OS
Figure 5. Positioning Accuracy
ADP3212A
DRVL2
PGND
DRVL1
PVCC
SWFB1
SW1
DRVH1
BST1
SW2
SWFB2
VID6
PH1
DPRSLP
PWRGD
IMON
FBRTN
FB
COMP
V
ARFREQ
EN
VRTT
RPM
RT
RAMP
LLINE
CSREF
CSSUM
CSCOMP
ILIM
IREF
1
48
7
−
BIT
CODE
5 V
3.3 V
100 nF
PH2
VCC
DRVH2
BST2
PWM3
SWFB3
TTSNS
GND
ADP3212A
VCC
37
20
19
18
12
CSCOMP
CSSUM
CSREF
GND
+
−
1.0 V
100 nF
5.0 V
ADP3212A
VCC
37
7
6
18
12
COMP
FB
LLINE
GND
+
−
1.0 V
5.0 V
CSREF
17
VID DAC
1 k
W
80 k
W
20 k
W
VID5
VID4
VID3
VID2
VID1
VID0
CLKEN
TRDET
OD3
PSI
39 k
W
1 k
W
V
OS
+
CSCOMP
*
1.0 V
40 V
D
V
FB
+
FB
D
V
+
D
V
*
FB
D
V
+
0m
V
10 k
W
D
V
ADP3212A, NCP3218A
http://onsemi.com
11
TYPICAL PERFORMANCE CHARACTERISTICS
V
VID
= 1.5 V
, T
A
= 20
°
C to 100
°
C, unless otherwise noted.
Output V
oltage
EN
1
4
1
: 0.5 V/div
2
: 2 V/div
3
: 5 V/div
4
: 5 V/div
4 ms/div
CPU Mode
PWRGD
CLKEN
Output V
oltage
EN
1
2
1
: 0.5 V/div
2
: 2 V/div
3
: 5 V/div
4
: 5 V/div
1 ms/div
GPU Mode
PWRGD
CLKEN
Output V
oltage
EN
1
2
3
4
1
: 0.5 V/div
2
: 2 V/div
3
: 2 V/div
4
: 2 V/div
200 ms/div
1 A Load
PWRGD
CLKEN
Figure 6. Switching Frequency vs. VID Output
V
oltage in PWM Mode
Figure 7. Per Phase Switching Frequency vs.
RT Resistance
VID OUTPUT VOL
T
AGE (V)
Rt RESIST
ANCE (k
W
)
1.50
1.25
1.00
0.75
0.50
0.25
0
50
100
150
200
250
350
400
1000
100
10
100
1000
Figure 8. Startup in GPU Mode
Figure 9. Startup in CPU Mode
Figure 10. Shutdown
PER PHASE SWITCHING
FREQUENCY (kHz)
SWITCHING FREQUENCY (kHz)
300
V
ARFREQ = 0 V
V
ARFREQ = 5 V
RT = 187 k
W
2 Phase Mode
VID = 1.4125 V
VID = 1.2125 V
VID = 1.1 V
VID = 0.8125 V
VID = 0.6125 V
3
4
2
3
ADP3212A, NCP3218A
http://onsemi.com
12
TYPICAL PERFORMANCE CHARACTERISTICS
V
VID
= 1.5 V
, T
A
= 20
°
C to 100
°
C, unless otherwise noted.
SW1
SW3
1
2
3
4
1: 10 V/div
2: 10 V/div
3: 10 V/div
4: 2 V/div
4 ms/div
SW2
DPRSLP
SW1
SW3
1
2
3
4
1
: 10 V/div
2
: 10 V/div
3
: 10 V/div
4
: 0.5 V/div
4 ms/div
SW2
PSI
SW1
SW3
1
2
3
4
1
: 10 V/div
2
: 10 V/div
3
: 10 V/div
4
: 2 V/div
4 ms/div
SW2
DPRSLP
SW1
SW3
1
2
3
4
1
: 10 V/div
2
: 10 V/div
3
: 10 V/div
4
: 0.5 V/div
4 ms/div
SW2
PSI
SW1
SW3
1
2
3
4
1: 10 V/div
2: 10 V/div
3: 10 V/div
4: 2 V/div
4 ms/div
SW2
DPRSLP
SW1
SW3
1
2
3
4
1: 10 V/div
2: 10 V/div
3: 10 V/div
4: 2 V/div
4 ms/div
SW2
DPRSLP
Figure 1
1. DPRSLP T
ransition with PSI = High
Figure 12. PSI T
ransition with DPRSLP = Low
Figure 13. DPRSLP T
ransition with PSI = High
Figure 14. PSI T
ransition with DPRSLP = Low
Figure 15. DPRSLP T
ransition with PSI = Low
Figure 16. DPRSLP T
ransition with PSI = Low
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P24
P25-P27
P28-P30
P31-P33
P34-P35
NCP3218AMNR2G
Mfr. #:
Buy NCP3218AMNR2G
Manufacturer:
ON Semiconductor
Description:
Switching Controllers 3 PHASE BUCK CONTROLLER
Lifecycle:
New from this manufacturer.
Delivery:
DHL
FedEx
Ups
TNT
EMS
Payment:
T/T
Paypal
Visa
MoneyGram
Western
Union
Products related to this Datasheet
NCP3218AMNR2G
ADP3212AMNR2G
