cs5323gdw20 ON Semiconductor, cs5323gdw20 Datasheet - Page 5

• Manufacturer Part Number: cs5323gdw20
• Description: Three-phase Buck Controller With 5-bit Dac
• Manufacturer: ON Semiconductor

ELECTRICAL CHARACTERISTICS (continued)
R
Voltage Feedback Error Amplifier
PWM Comparators
GATEs
Oscillator
Adaptive Voltage Positioning
2. The V
3. Guaranteed by design. Not tested in production.
V
COMP Source Current
COMP Sink Current
COMP Discharge Threshold Voltage
Transconductance
Output Impedance
Open Loop DC Gain
Unity Gain Bandwidth
PSRR @ 1 kHz
COMP Max Voltage
COMP Min Voltage
Hiccup Latch Discharge Current
COMP Discharge Ratio
Minimum Pulse Width
Channel Start Up Offset
High Voltage
Low Voltage
Rise Time GATE
Fall Time GATE
Switching Frequency
Switching Frequency
Switching Frequency
R
Phase Delay
V
Maximum V
Current Share Amp to V
R(OSC) =
FB
OSC
DRP
Bias Current (Note 2)
Offset
Voltage
FB
53.6 k, C
Characteristic
Bias Current changes with the value of R
DRP
Voltage
COMP
DRP
= 0.1 μF, C
Gain
REF
0.9 V < V
COMP = 0.5 V to 2.0 V; V
COMP = 0.5 V to 2.0 V; V
−10 μA < I
Note 3
0.01 μF
V
V
Measured from CSx to GATE(H) with 60 mV step
V(CS1) = V(CS2) = V(CS3) = V(V
Measure V
Measure GATEx, I
1.0 V < GATE < 8.0 V; V
8.0 V > GATE > 1.0 V; V
R
Note 3 R
Note 3 R
Rising edge only
CS1 = CS2 = CS3 = CS
|(CS1 = CS2 = CS3) − C
FB
FB
OSC
between CSx and CS
V(CS
GATE (H) 1, 2 switch high
Measure V
V
= 0.1μF, DAC Code 10000, C
FB
= 1.8 V; COMP Open; DAC = 00000
= 1.9 V; COMP Open; DAC = 00000
= 53.6 k
= COMP, Measure V
REF
OSC
OSC
FB
COMP
CC
) = 0 V; Measure V(COMP) when
< 1.9 V
DRP
= 32.4 k
= 16.2 k
OSC
− GATEx, I
(0°C < T
Test Conditions
< +10 μA
http://onsemi.com
− COMP
per Figure 4.
GATEx
REF
−
−
−
−
−
−
−
A
REF
CC
CC
REF
= 1.0 mA
FB
FB
GATEx
< 70°C; 0°C < T
, V
DRP
5
= 10 V
= 10 V
= 1.8 V; DAC = 00000
= 1.9 V; DAC = 00000
| = 50 mV,
FB
= 1.0 mA
− COMP
= COMP
VCC
FB
)
= 0.1 μF, I
J
< 85°C; 4.7 V < V
LIM
≥ 1.0 V; unless otherwise specified.)
17.6
0.20
Min
220
300
600
105
−20
360
2.4
2.0
4.0
0.3
2.7
15
15
60
−
−
−
−
−
−
−
−
−
−
−
CC
< 14 V; C
19.0
0.27
0.25
1.00
Typ
400
350
250
400
800
120
465
2.5
2.7
0.1
5.0
6.0
0.4
1.2
3.0
30
30
32
90
70
30
30
−
GATE
1000
Max
20.6
0.34
0.50
500
280
500
135
570
0.2
0.5
2.1
3.5
60
60
10
10
60
60
20
−
−
−
−
−
−
−
= 100 pF,
mmho
Unit
kHz
kHz
kHz
kHz
MΩ
deg
V/V
mV
mV
μA
μA
μA
μA
dB
dB
ns
ns
ns
V
V
V
V
V
V
V
−