NCP5318 ON Semiconductor, NCP5318 Datasheet - Page 7

• Manufacturer Part Number: NCP5318
• Description: Two/Three/Four-Phase Buck CPU Controller
• Manufacturer: ON Semiconductor

ELECTRICAL CHARACTERISTICS (continued)
C
GATES
Oscillator
Adaptive Voltage Positioning
Soft−Start
Current Sensing and Overcurrent Protection
General Electrical Specifications
2. Guaranteed by design, not tested in production.
High Voltage
Low Voltage
Rise Time GATE
Fall Time GATE
Switching Frequency
R
Phase Delay, 3 Phases
Phase Delay, 4 Phases
Phase Disable Threshold
V
Current Sense Amplifier to V
(each channel separately)
V
V
Charge Current
Discharge Current
COMP Pull−Down Current
CSxP Input Bias Current
CSxN Input Bias Current
Current Sense Amp to PWM Gain
Current Sense Amp to PWM Bandwidth
Current Sense Amp to I
Current Sense Amp to I
Current Limit Filter Slew Rate
I
Current Sense Amp to I
Current Sense Common Mode Input Range
V
UVLO Start Threshold
UVLO Stop Threshold
UVLO Hysteresis
LIM
SS
DRP
DRP
DRP
CC
OSC
= 0.1 mF, C
Input Bias Current
Operating Current
Output Voltage to DAC
Source Current
Sink Current
Voltage
VCC
Characteristic
= 0.1 mF, R
LIM
LIM
LIM
Gain
Bandwidth
Output Offset
DRP
OUT
ROSC
Gain
Offset
= 95.3 kW, V(I
Measure GATEx, I
Measure GATEx, I
0.8 V < GATEx < 2.0 V, V
2.0 V > GATEx > 0.8 V, V
R
R
V
V
CSxP = CSxN, V
Measure V
CSxP − CSxN = 80 mV, V
sure V
CSxN = CSxP = 0 V
CSxN = CSxP = 0 V
CSxN = 0 V, CSxP = 80 mV, Measure
V(COMP) when GATEx switches high
CSxP − CSxN = 20 mV to 60 mV, Ramp
I
I
COMP = 0.3 V (no switching)
SS charging, GATEx switching
GATEx not switching, SS and COMP
discharging
Start − Stop
LIM
LIM
LIM
CC
CC
OSC
OSC
) = 1.0 V, DAC Code 010100; unless otherwise noted)
until SS goes low
= 0 V
= CS4P = CS4N
− (CS4P = CS4N)
= 95.3 k, 3 Phase
= 95.3 k, 4 Phase
(0°C < T
DRP
http://onsemi.com
DRP
− COMP for 25°C < T
Test Conditions
A
− COMP
< 70°C; V
FB
T = 80°C
(Note 2)
(Note 2)
(Note 2)
(Note 2)
7
GATEx
GATEx
= COMP,
−
−
−
−
−
−
−
= 1.0 mA
= 1.0 mA
CC
CC
FB
CC
= 10 V
= 10 V
= COMP, Mea-
= 12 V; C
A
< 70°C
GATEx
= 100 pF, C
3.228
2.25
0.95
4.37
0.95
Min
276
213
100
500
−20
−82
0.2
0.2
3.4
2.0
8.5
7.5
0.8
75
30
90
−
−
−
−
−
−
−
−
0
−
COMP
3.390
1.02
Typ
325
251
120
120
−12
0.1
5.0
5.0
4.6
1.3
0.4
0.9
0.1
0.1
4.6
7.0
1.0
5.0
0.1
9.0
8.0
1.0
90
44
27
−
−
0
−
= 0.01 mF,
3.526
Max
1.05
4.83
374
289
140
105
+20
160
0.7
3.0
0.6
2.1
1.0
1.0
5.8
1.0
2.0
9.5
8.5
1.2
10
10
50
13
58
35
−
−
−
−
mV/ms
MHz
MHz
Unit
kHz
deg
deg
V/V
V/V
V/V
mV
mV
mA
mA
mA
mV
mA
mA
mA
mA
mA
mA
ns
ns
V
V
V
V
V
V
V