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NCP5391MNR2G

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P26
NCP5391
http://onsemi.com
10
ELECTRICAL CHARACTERISTICS
(0°C < T
A
< 70°C; 0°C < T
J
< 85°C; 10.8 V < V
CC
< 13.2 V; All DAC Codes; C
VCC
= 0.1 F, F
SW
= 400 kHz, unless otherwise stated)
Parameter UnitMaxTypMinTest Conditions
MODULATORS (PWM COMPARATORS)
PWM Comparator Offset Mismatch
(Note 1)
Between any 2 phases,
F
S
= 400 kHz
- - 40 mV
Phase Angle Error Between adjacent phases,
F
S
= 400 kHz
-15 - 15 °
Propagation Delay (Note 1) Ramp/Comp crossing to Gx high - 20 - ns
Propagation Delay (Note 1) Ramp/Comp crossing to Gx low - 20 - ns
PWM OUTPUTS
Output High Voltage Sourcing 500 A 3.3 4.0 4.7 V
Output Low Voltage Sinking 500 A - 25 100 mV
Rise Time C
L
= 20 pF, Vo = 0.3 to 2.0 V - 10 - ns
Fall Time C
L
= 20 pF, Vo = Vmax to 0.7 V - 10 - ns
Output Impedance – LO State Resistance to GND (Gx = LO) - 50 -
G3 Gate Pin Source Current during
Phase Detect
- 70 - A
Phase Detection Period - 50 - s
G3 Phase Detect Threshold
Resistance
- - 1.0 k
GATE DRIVER ENABLE (DRVON)
Output High Voltage Sourcing 500 A 4.0 5.3 5.5 V
Output Low Voltage Sinking 500 A - 50 200 mV
Rise Time C
L
(PCB) = 20 pF,
Vo = 10% to 90%
- 25 - ns
Fall Time C
L
(PCB) = 20 pF,
Vo = 10% to 90%
- 25 - ns
Internal Pulldown Resistance V
CC
< UVLO Threshold - 70 140 k
VR_RDY (POWER GOOD) OUTPUT
Saturation Voltage I
SINK
= 10 mA - - 0.4 V
Rise Time External pullup of 1.0 k to 1.25 V, C
LOAD
= 20 pF,
Vo = 10% to 90%
- - 150 ns
Output Voltage at Power-up (Note 1) External VR_RDY pullup resistor of 2.0 k to 5.0 V,
t
R_VCC
≤ 3 x t
R_5V
,
100 s ≤ t
R_VCC
≤ 20 ms
- - 1.0 V
High – Output Leakage Current VR_RDY = 5.5 V via 1.0 K - - 1.0 A
Upper Threshold Voltage VCORE increasing,
DAC = 1.3 V
- 300 - mV
below
DAC
Rising Delay VCORE increasing 0.3 1.40 2.0 ms
Falling Delay VCORE decreasing - 5.0 - s
SOFT-START
SS Pin Source Current ENABLE = HI, V
SS
PIN
< 1.1 V - 5.0 - A
SS Pin Source Current ENABLE = HI, V
SS
PIN
> 1.15 V, VR11 SS Mode
Only
125 - - A
Soft-Start Ramp Time C
SS
= 0.01 F, DRVON = HI to V
SS
PIN
= 1.1 V 1.5 2.2 3.0 ms
SS Pin Discharge Voltage ENABLE = LO - - 50 mV
1. Guaranteed by design. Not tested in production.
NCP5391
http://onsemi.com
11
ELECTRICAL CHARACTERISTICS
(0°C < T
A
< 70°C; 0°C < T
J
< 85°C; 10.8 V < V
CC
< 13.2 V; All DAC Codes; C
VCC
= 0.1 F, F
SW
= 400 kHz, unless otherwise stated)
Parameter UnitMaxTypMinTest Conditions
SOFT-START
Soft-Start Discharge Time From ENABLE = LO to V
SS
PIN
< max Discharge
Voltage, C
SS
= 0.01 F
- 5.0 - s
VR11 V
BOOT
Threshold Voltage - 1.081 - V
VR11 Dwell Time at V
BOOT
(Note 1) 50 225 900 s
ENABLE INPUT
Enable High Input Leakage Current EN = 3.0 V - - 10 A
Upper Threshold V
UPPER
0.80 0.85 0.90 V
Lower Threshold V
LOWER
0.67 0.75 0.83 V
Total Hysteresis V
UPPER
– V
LOWER
70 100 130 mV
Enable Delay Time Enable transitioning HI to start of SS voltage rise 0.5 1.5 3.0 ms
Disable Delay Time Enable transitioning Low to DRVON = Low - - 200 ns
CURRENT LIMIT
Current Sense Inputs to I
LIM
Gain
(Note 1)
20 mV < (CSx-CSxN) < 60 mV
T
A
= 25°C (all CS channels together)
5.7 6.0 6.3 V/V
ILIM Pin Input Bias Current V
ILIM
= 2.0 V - 0.1 1.0 A
ILIM Pin Working Voltage Range
(Note 1)
0.3 - 2.0 V
ILIM Input Offset Voltage (Note 1) -50 - 50 mV
OVERVOLTAGE PROTECTION
Overvoltage Threshold (Note 1) DAC
+160
DAC+18
0
DAC
+200
mV
UNDERVOLTAGE PROTECTION
UVLO Start Threshold 8.2 9.0 9.5 V
UVLO Stop Threshold 7.2 8.0 8.5 V
UVLO Hysteresis - 1.0 - V
VID INPUTS
Upper Threshold V
UPPER
- - 800 mV
Lower Threshold V
LOWER
400 - - mV
Input Bias Current V
VIDX
= 1.25 V - 100 500 nA
Delay before Latching VID Change
(VID De-Skewing)
Measured from the 1
st
edge of a VID change
400 - 1000 ns
INTERNAL DAC SLEW RATE LIMITER
Positive Slew Rate Limit VID step range of +10mV to +500mV - 7.3 - mV/s
Negative Slew Rate Limit VID step range of -10mV to -500mV - 7.3 - mV/s
INPUT SUPPLY CURRENT
V
CC
Operating Current F
SW
= 400 kHz - 20 - mA
VR 11 DAC
System Voltage Accuracy 1.0 V < DAC < 1.6 V
0.8 V < DAC < 1.0 V
0.5 V < DAC < 0.8 V
- - ±0.5
±5.0
±8.0
%
mV
mV
No-Load Offset Voltage from
Nominal DAC Specification
With CS Input Vin = 0 V -19 mV
1. Guaranteed by design. Not tested in production.
NCP5391
http://onsemi.com
12
Table 2: VR11 VID Codes
VID7
800 mV
VID6
400 mV
VID5
200 mV
VID4
100 mV
VID3
50 mV
VID2
25 mV
VID1
12.5 mV
VID0
6.25 mV
Nominal
DAC
Voltage (V)
HEX
0 0 0 0 0 0 0 0 OFF 00
0 0 0 0 0 0 0 1 OFF 01
0 0 0 0 0 0 1 0 1.60000 02
0 0 0 0 0 0 1 1 1.59375 03
0 0 0 0 0 1 0 0 1.58750 04
0 0 0 0 0 1 0 1 1.58125 05
0 0 0 0 0 1 1 0 1.57500 06
0 0 0 0 0 1 1 1 1.56875 07
0 0 0 0 1 0 0 0 1.56250 08
0 0 0 0 1 0 0 1 1.55625 09
0 0 0 0 1 0 1 0 1.55000 0A
0 0 0 0 1 0 1 1 1.54375 0B
0 0 0 0 1 1 0 0 1.53750 0C
0 0 0 0 1 1 0 1 1.53125 0D
0 0 0 0 1 1 1 0 1.52500 0E
0 0 0 0 1 1 1 1 1.51875 0F
0 0 0 1 0 0 0 0 1.51250 10
0 0 0 1 0 0 0 1 1.50625 11
0 0 0 1 0 0 1 0 1.50000 12
0 0 0 1 0 0 1 1 1.49375 13
0 0 0 1 0 1 0 0 1.48750 14
0 0 0 1 0 1 0 1 1.48125 15
0 0 0 1 0 1 1 0 1.47500 16
0 0 0 1 0 1 1 1 1.46875 17
0 0 0 1 1 0 0 0 1.46250 18
0 0 0 1 1 0 0 1 1.45625 19
0 0 0 1 1 0 1 0 1.45000 1A
0 0 0 1 1 0 1 1 1.44375 1B
0 0 0 1 1 1 0 0 1.43750 1C
0 0 0 1 1 1 0 1 1.43125 1D
0 0 0 1 1 1 1 0 1.42500 1E
0 0 0 1 1 1 1 1 1.41875 1F
0 0 1 0 0 0 0 0 1.41250 20
0 0 1 0 0 0 0 1 1.40625 21
0 0 1 0 0 0 1 0 1.40000 22
0 0 1 0 0 0 1 1 1.39375 23
0 0 1 0 0 1 0 0 1.38750 24
0 0 1 0 0 1 0 1 1.38125 25
0 0 1 0 0 1 1 0 1.37500 26
0 0 1 0 0 1 1 1 1.36875 27
0 0 1 0 1 0 0 0 1.36250 28
0 0 1 0 1 0 0 1 1.35625 29
0 0 1 0 1 0 1 0 1.35000 2A
0 0 1 0 1 0 1 1 1.34375 2B
0 0 1 0 1 1 0 0 1.33750 2C
0 0 1 0 1 1 0 1 1.33125 2D
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P26

NCP5391MNR2G

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Buy NCP5391MNR2G
Manufacturer:
ON Semiconductor
Description:
IC REG CTRLR INTEL 3OUT 32QFN
Lifecycle:
New from this manufacturer.
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