CS5422 datasheet(5/17 Pages) ONSEMI

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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)

−

BST Current

COMP1,2 = 0 V (No Switching)

−

3.5

6.0

Undervoltage Lockout

Start Threshold

GATE(H) Switching; COMP1,2 charging

7.8

8.6

9.4

Stop Threshold

GATE(H) not switching; COMP1,2 discharging

7.0

7.8

8.6

Hysteresis

Start−Stop

0.5

0.8

1.5

Hiccup Mode Overcurrent Protection

OVC Comparator Offset Voltage

0 V < IS+ 1(2) < 5.5 V, 0 V < IS− 1(2) < 5.5 V

Discharge Threshold

−

0.20

0.25

0.30

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

−

5.5

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

COMP1 Charge/Discharge

Ratio in OVC

−

5.0

6.0

7.0

−

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