cs5323gdw20 ON Semiconductor, cs5323gdw20 Datasheet - Page 8

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

CS
REF
V
V
V
V
V
CS2
CS1
CS3
900
800
700
600
500
400
300
200
100
ID0
ID1
ID2
ID3
ID4
REF
10
+
+
CSA3
+
−
−
CSA2
−
CSA1
3.3 V
DAC
REF
Gnd
V
CC
20
FAULT
CO3
CO1
CO2
Figure 3. Oscillator Frequency
DAC
DAC
OUT
V
OUT
ITotal
30
S
R
+
−
V
R
CC
OSC
−
+
Stop
4.4 V
Start
4.6 V
0.27 V
×
+
−
AVPA
Value, kΩ
1.5
RESC
40
TYPICAL PERFORMANCE CHARACTERISTICS
V
−
+
+
−
DRP
1
OVIC
50
5 μA
FAULT
−
+
2
COMP
Figure 2. Block Diagram
+
60
−
http://onsemi.com
1
FAULT
OFFSET
CO1
CO2
CO3
2
70
PWMC1
PWMC2
−
+
−
+
−
+
PWMC3
8
EA
CO2
CO1
CO3
−
+
+
−
+
−
+
−
DAC
80
60
40
20
0.44 V
0.44 V
0.44 V
0
+
MAXC1
−
+
MAXC2
−
+
MAXC3
−
10
OUT
FAULT
FAULT
FAULT
V
Figure 4. V
CC
20
V
FB
PH 3
PH 1
PH 2
R
30
OSC
OSC
FB
Current
R
Source
S
R
S
R
S
Gen
R
Bias Current vs. R
OSC
40
PH 2
PH 3
PH 1
Value, kΩ
50
60
BIAS
OSC
70
Value
I
GATE
GATE
GATE
LIM
80