ncp5389 ON Semiconductor, ncp5389 Datasheet - Page 9

• Manufacturer Part Number: ncp5389
• Description: 2/3 Phase Buck Controller For Vr11 Pentium Iv Processor Applications
• Manufacturer: ON Semiconductor

3. Guaranteed by design. Not tested in production.
ELECTRICAL CHARACTERISTICS
(0°C < T
CURRENT SENSE AMPLIFIERS
OSCILLATOR
MODULATORS (PWM COMPARATORS)
Input Bias Current
Common Mode Input Voltage Range
Differential Mode Input Voltage Range
Input Offset Voltage (Note 3)
Current Sense Input to
PWM Comparator Input Gain
Switching Frequency Range (Note 3)
Switching Frequency Accuracy
(Note 3)
Switching Frequency Accuracy
Switching Frequency Accuracy
Switching Frequency Accuracy
Switching Frequency Accuracy
(Note 3)
Switching Frequency Accuracy
Switching Frequency Accuracy
Switching Frequency Accuracy
R
R
Minimum Pulse Width
Magnitude of the PWM Ramp
0% Duty Cycle
100% Duty Cycle
Minimum PWM Linear Duty Cycle
(Note 3)
PWM Comparator Offset Mismatch
(Note 3)
Phase Angle Error
Propagation Delay (Note 3)
Propagation Delay (Note 3)
OSC
OSC
Output Voltage
Output Voltage (Note 3)
A
< 70°C; 0°C < T
Parameter
J
< 85°C; 10.8 V < V
CSx = CSxN = 1.4 V
CSx = CSxN = 1.0 V
0 mV < (CSx-CSxN) < 25 mV
T
R
R
R
R
R
R
R
R
10 kW < R
49.9 kW < R
Fs = 400 kHz
COMP voltage when the PWM
outputs remain LO
COMP voltage when the PWM
outputs remain HI
F
Between any 2 phases,
F
Between adjacent phases,
F
Ramp/Comp crossing to Gx
high
Ramp/Comp crossing to Gx low
A
S
S
S
OSC
OSC
OSC
OSC
OSC
OSC
OSC
OSC
= 25°C
= 400 kHz
= 400 kHz
= 400 kHz
CC
= 100 kW, 2-phase
= 49.9 kW, 2-phase
= 24.9 kW, 2-phase
= 10 kW, 2-phase
= 100 kW, 3-phase
= 49.9 kW, 3-phase
= 24.9 kW, 3-phase
= 10 kW, 3-phase
< 13.2 V; All DAC Codes; C
Test Conditions
OSC
OSC
< 49.9 kW
http://onsemi.com
< 100 kW
NCP5389
9
VCC
184.5
178.2
-200
-120
-0.3
-3.0
93.6
1.92
Min
= 0.1 mF, F
100
360
829
351
818
-15
5.7
90
-
-
-
-
-
-
-
-
-
SW
= 400 kHz, unless otherwise stated)
-100
2.00
2.00
Typ
104
205
400
921
100
198
390
909
6.0
1.0
1.2
2.3
30
90
20
20
-
-
-
-
-
-
114.4
225.5
217.8
1000
1013
1000
Max
2.08
120
440
429
110
2.0
3.0
6.3
40
40
15
-
-
-
-
-
-
-
-
Units
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
V/V
mV
mV
mV
nA
ns
ns
ns
%
V
V
V
V
V
V
°