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CS5422 Datasheet(PDF) 5 Page - ON Semiconductor

Part No. CS5422
Description  Dual Out−of−Phase Synchronous Buck Controller with Current Limit
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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CS5422 Datasheet(HTML) 5 Page - ON Semiconductor

 
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CS5422
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ELECTRICAL CHARACTERISTICS (continued) (0°C < TA < 70°C; 0°C < TJ < 125°C; ROSC = 30.9 k, CCOMP1,2 = 0.1 μF,
10.8 V < VCC < 13.2 V; 10.8 V < BST < 20 V, CGATE(H)1,2 = CGATE(L)1,2 = 1.0 nF, unless otherwise specified.)
Characteristic
Unit
Max
Typ
Min
Test Conditions
Supply Currents
VCC Current
COMP1,2 = 0 V (No Switching)
13
17
mA
BST Current
COMP1,2 = 0 V (No Switching)
3.5
6.0
mA
Undervoltage Lockout
Start Threshold
GATE(H) Switching; COMP1,2 charging
7.8
8.6
9.4
V
Stop Threshold
GATE(H) not switching; COMP1,2 discharging
7.0
7.8
8.6
V
Hysteresis
Start−Stop
0.5
0.8
1.5
V
Hiccup Mode Overcurrent Protection
OVC Comparator Offset Voltage
0 V < IS+ 1(2) < 5.5 V, 0 V < IS− 1(2) < 5.5 V
55
70
85
mV
Discharge Threshold
0.20
0.25
0.30
V
IS+ 1(2) Bias Current
0 V < IS+ 1(2) < 5.5 V
−1.0
0.1
1.0
μA
IS− 1(2) Bias Current
0 V < IS− 1(2) < 5.5 V
−1.0
0.1
1.0
μA
OVC Common Mode Range
0
5.5
V
OVC Latch COMP1 Discharge Current
COMP1 = 1.0 V
2.0
5.0
8.0
μA
OVC Latch COMP2 Discharge Current
COMP2 = 1.0 V
0.3
1.2
3.5
mA
COMP1 Charge/Discharge
Ratio in OVC
5.0
6.0
7.0


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