cs5211 ON Semiconductor, cs5211 Datasheet - Page 5

• Manufacturer Part Number: cs5211
• Description: Low Voltage Synchronous Buck Controller
• Manufacturer: ON Semiconductor

ELECTRICAL CHARACTERISTICS
C
COMP
LGND
SGND
3. Guaranteed by design. Not tested in production.
4. Recommended maximum operating voltage between the three grounds is 200 mV.
V
BST/V
Start Threshold
Stop Threshold
Hysteresis
Sense Ground Current
V
GATE(H)
General Electrical Specifications
V
CC
FFB
V
IS+
IS−
CC
FB
Supply Current
C
Characteristic
= C
Supply Current
GATE(L)
V
60 mV
0.8 V
START
−
+
−
0.5 V
−
= 3.3 nF; R
1.0 V
−
+
−
+
+
−
+
−
Comparator
Comparator
Comparator
Error Amp
100 % DC
UVLO
OSC
OC
5.0 mA
COMP = 0 V (no switching)
COMP = 0 V (no switching)
GATE(H) Switching, COMP Charging
GATE(H) Not Switching, COMP Not Charging
Start−Stop
(Note 4)
Σ
= 51 k; C
(−40°C < T
0.25 V
COMP
ART Ramp
+
−
COMP Discharge COMP
Fault
UVLO
= 0.1 mF, unless otherwise specified.) (Note 3)
A
PWM Comparator
< 85°C; −40°C < T
Figure 2. Block Diagram
−
+
Test Conditions
http://onsemi.com
R
OSC
OSC
5
J
< 125°C; 4.5 V < V
Set Dominant
S
R
Reset Dominant
R
S
PWM FF
Q
Q
Q
Q
Fault
CC
, V
C
< 14 V; 7.0 V < BST < 20 V;
3.90
3.75
Min
100
−
−
−
4.05
3.90
0.15
Typ
150
5.0
2.0
Max
4.20
4.05
1.00
200
8.0
3.0
GATE(H)
PGND
BST
R
V
GATE(L)
OSC
C
Unit
mA
mA
mV
mA
V
V