CS5211ED14 Ver la hoja de datos (PDF) - ON Semiconductor
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CS5211ED14 Datasheet PDF : 13 Pages
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CS5211
ELECTRICAL CHARACTERISTICS (−40°C < TA < 85°C; −40°C < TJ < 125°C; 4.5 V < VCC, VC < 14 V; 7.0 V < BST < 20 V;
CGATE(H) = CGATE(L) = 3.3 nF; ROSC = 51 k; CCOMP = 0.1 mF, unless otherwise specified.) (Note 3)
Characteristic
Test Conditions
Min
Typ Max Unit
General Electrical Specifications
VCC Supply Current
BST/VC Supply Current
Start Threshold
COMP = 0 V (no switching)
COMP = 0 V (no switching)
GATE(H) Switching, COMP Charging
−
5.0
8.0 mA
−
2.0
3.0 mA
3.90
4.05 4.20
V
Stop Threshold
GATE(H) Not Switching, COMP Not Charging
3.75
3.90 4.05
V
Hysteresis
Start−Stop
100
150
200
mV
Sense Ground Current
(Note 4)
−
0.15 1.00 mA
3. Guaranteed by design. Not tested in production.
4. Recommended maximum operating voltage between the three grounds is 200 mV.
VFFB
0.5 V
Σ
PWM Comparator
Reset Dominant
R
Q
COMP
VFB
SGND
VCC
IS+
IS−
LGND
− Error Amp
+
1.0 V
ART Ramp
OSC
ROSC
Fault
S
Q
PWM FF
0.8 V
VSTART
100 % DC
− Comparator
+
UVLO
Comparator
UVLO
Set Dominant
Fault
S
Q
60 mV
OC
Comparator
−
0.25 V +
RQ
5.0 mA
COMP Discharge COMP
Figure 2. Block Diagram
BST
GATE(H)
VC
GATE(L)
PGND
ROSC
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