CS5212GD14 ONSEMI [ON Semiconductor], CS5212GD14 Datasheet - Page 4

• Manufacturer Part Number: CS5212GD14
• Description: Low Voltage Synchronous Buck Controller
• Manufacturer: ONSEMI [ON Semiconductor]

ELECTRICAL CHARACTERISTICS
3.5 V; 3.1 V < V
GATE(H) and GATE(L)
Overcurrent Protection
PWM Comparator
Oscillator
General Electrical Specifications
3. GBD.
4. Recommended maximum operating voltage between the three grounds is 200 mV.
GATE(H) to GATE(L) Delay
GATE(L) to GATE(H) Delay
GATE(H)/(L) Pulldown
OVC Comparator Offset Voltage
IS+ Bias Current
IS− Bias Current
COMP Discharge Threshold
COMP Discharge Current in OVC
Fault Mode
Transient Response
PWM Comparator Offset
Artificial Ramp
V
V
Minimum Pulse Width
Switching Frequency
Switching Frequency
Switching Frequency
R
V
BST/V
Start Threshold
Stop Threshold
Hysteresis
Sense Ground Current
FFB
FFB
CC
OSC
Supply Current
Bias Current
Input Range
Voltage
C
Supply Current
Characteristic
C
< 7.0 V; 4.5 V < BST < 20 V; C
GATE(H) < 2.0 V, GATE(L) > 2.0 V
GATE(L) < 2.0 V, GATE(H) > 2.0 V
Resistance to PGND
0 V < IS+ < V
0 V < IS+ < V
0 V < IS− < V
COMP = 1.0 V
COMP = 0 − 1.5 V, V
V
Increase COMP until GATE(H) starts switching
Duty Cycle = 90%
V
(Note 3)
R
R
R
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)
FB
FFB
OSC
OSC
OSC
(−40°C < T
= V
= 0 V
= 18 k
= 51 k
= 115 k
FFB
GATE(H)
= 0 V;
A
CC
CC
CC
< 85°C (CS5212E); 0°C < T
, 0 V < IS− < V
= C
Test Conditions
http://onsemi.com
GATE(L)
FFB
, 20 mV overdrive
−
−
−
= 3.3 nF; R
4
CC
OSC
A
< 70°C (CS5212G); −40°C < T
= 51 k; C
COMP
= 0.1 mF, unless otherwise specified.)
Min
−1.0
−1.0
0.20
0.35
1.21
600
240
120
2.0
2.7
2.6
40
40
20
54
40
75
−
−
−
−
−
−
−
0.25
0.40
1.25
0.15
Typ
100
750
300
150
100
0.1
0.1
5.0
0.1
5.0
2.0
2.8
2.7
70
70
50
60
70
−
−
J
< 125°C; 3.1 V < V
Max
0.30
0.45
1.29
1.00
200
100
200
900
360
180
125
110
110
115
1.0
1.0
8.0
1.0
1.1
8.0
3.0
2.9
2.8
66
Unit
kHz
kHz
kHz
KW
mV
mV
mA
mA
mV
mA
mA
mA
mA
mA
CC
ns
ns
ns
ns
V
V
V
V
V
V
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