NCP5316
ELECTRICAL CHARACTERISTICS (continued) (0°C < T < 70°C; V
= V = 12 V; C
= 100 pF, C
= 0.01 m F,
A
CCL
CC
GATEx
COMP
C
= 0.1 m F, C
= 0.1 m F, R = 32.4 kW, V(I ) = 3.3 V, V(IP ) = 3.3 V, unless otherwise noted)
ROSC LIM LIM
SS
VCC
Characteristic
Test Conditions
Min
Typ
Max
Unit
GATES
Low Voltage
Measure GATEx, I
= 1.0 mA
−
−
−
0.1
2.5
5.0
0.7
10
10
V
GATEx
Rise Time GATE
Fall Time GATE
Oscillator
0.8 V < GATEx < 2.0 V, V = 10 V
ns
ns
CC
2.0 V > GATEx > 0.8 V, V = 10 V
CC
Switching Frequency
R
R
R
= 32.4 k, 4−Phase mode
= 32.4 k, 5−Phase mode
= 32.4 k, 6−Phase mode
450
520
550
525
620
650
600
720
750
kHz
kHz
kHz
OSC
OSC
OSC
R
Voltage
−
−
0.95
−
1.0
60
72
90
−
1.05
−
V
OSC
Phase Delay, 6 Phases
Phase Delay, 5 Phases
Phase Delay, 4 Phases
Phase Disable Threshold
Adaptive Voltage Positioning
deg
deg
deg
mV
CS6P = CS6N = V
−
−
CC
CS3P = CS3N = CS6P = CS6N = V
−
−
CC
V
CC
− (CSxP = CSxN)
500
−
V
Output Voltage to DAC
Offset
CSxP = CSxN, V = COMP,
−15
2.3
1.0
0.2
−
15
2.75
14
mV
V/V
mA
mA
DRP
OUT
FB
Measure V
− COMP
DRP
Current Sense Amplifier to V
Gain
CSxP − CSxN = 80 mV, V = COMP,
2.55
1.5
0.4
DRP
FB
Measure V
− COMP, V
= 1.0 V
DRP
DRP
V
V
Source Current
Sink Current
CSxP − CSxN = 0 mV, V = COMP,
FB
DRP
V
DRP
= 2.0 V
CSxP − CSxN = 80 mV, V = COMP,
0.6
DRP
FB
V
DRP
= 0.5 V
Soft Start
Charge Current
V
CCL
V
CCL
V
CCL
= 10 V
30
90
40
120
0.9
50
150
2.1
m A
m A
Discharge Current
COMP Pull−Down Current
= 7.0 V
= 10 V
0.2
mA
Current Sensing and Overcurrent Protection
CSxP Input Bias Current
CSxN = CSxP = 0 V
CSxN = CSxP = 0 V
−
−
−
0.1
0.1
3.0
1.0
1.0
−
m A
m A
CSxN Input Bias Current
Current Sense Amp to PWM Gain
CSxN = 0 V, CSxP = 80 mV, Measure
V(COMP) when GATEx switches high
V/V
Current Sense Amp to PWM Bandwidth
Current Sense Amp to IO Gain
−
−
7.0
4.2
−
MHz
V/V
IO/(CSxP − CSxN), I
= 0.6 V,
3.85
4.4
LIM
GATEx not switching
Current Sense Amp to IO Bandwidth
IO Source Current
−
−
−
−
4.0
0.5
−
1.0
10
−
MHz
mA
mA
m A
−
IO Sink Current
0.9
0.1
0.1
1.5
1.0
1.0
I
Input Bias Current
I
= 0 V
LIM
LIM
IOF Input Bias Current
IP Input Bias Current
IOF = 0 V
IP = 0 V
−
m A
−
0.1
9.5
1.0
11
m A
LIM
LIM
Current Sense Amp to Pulse−by−Pulse
Current Limit Comparator Gain
−
8.0
V/V
Current Sense Common Mode Input Range Note 2
0
−
2.0
V
General Electrical Specifications
V
Operating Current
COMP = 0.3 V (no switching)
SS charging, GATEx switching
−
36
9.0
8.0
40
9.5
8.5
mA
V
CC
UVLO Start Threshold
UVLO Stop Threshold
8.5
7.5
GATEx not switching, SS & COMP
discharging
V
UVLO Hysteresis
Start − Stop
0.8
1.0
1.2
V
2. Guaranteed by design, not tested in production.
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