CS5422GDWFR24 Ver la hoja de datos (PDF) - ON Semiconductor

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CS5422GDWFR24

Dual Out−of−Phase Synchronous Buck Controller with Current Limit

ON Semiconductor 

CS5422

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

Test Conditions

Min

Typ

Max

Unit

Supply Currents

VCC Current

BST Current

COMP1,2 = 0 V (No Switching)

COMP1,2 = 0 V (No Switching)

−

13

17

mA

−

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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