Rev. C 07/16

7

LYT7503-7504

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Circuit Protection

Current Limit for

Auto-Restart

I

LIMIT(AR)

di/dt = 446 mA/µs

T

J = 25 °C

LYT7503

1.06

1.15

1.24

A

di/dt = 662 mA/µs

T

J = 25 °C

LYT7504

1.61

1.75

1.88

Fault Minimum Switch

ON-Time

T

FAULT(MIN)

250

400

ns

Auto-Restart

T

AR(OFF)1

T

J = 25 °C

100

ms

T

AR(OFF)2

1000

Input Overvoltage

Threshold

I

IOV

T

J = 25 °C

0.9

1.0

1.1

mA

MULTIFUNCTIONAL Pin

Auto-Restart Threshold

Voltage (Output OVP)

V

OOV

T

J = 25 °C

2.3

2.4

2.48

V

MULTIFUNCTIONAL Pin

Undervoltage Threshold

(Output Short)

V

OUV

T

J = 25 °C

See Note B

0.91

0.95

0.99

V

Junction Temperature

at Fold-Back

T

FB

See Note B

138

145

152

°C

Thermal Shutdown

Temperature

T

SD

See Note A

160

°C

Thermal Shutdown

Hysteresis

T

SD(H)

See Note A

75

°C

Parameter

Symbol

Conditions

SOURCE = 0 V

T

J = -40 °C to 125 °C

(Unless Otherwise Specified)

Min

Typ

Max

Units

Output

ON-State Resistance

R

DS(ON)

LYT7503

I

D = 139 mA

T

J = 25 °C

4.5

5.2

Ω

T

J = 100 °C

6.8

7.8

LYT7504

I

D = 182 mA

T

J = 25 °C

3.4

3.9

T

J = 100 °C

5.1

5.8

OFF-State Leakage

I

DSS1

V

BP = 5.25 V,

V

DS = 580 V

T

J = 125 °C

LYT7503

55

µA

LYT7504

70

Breakdown Voltage

BV

DSS

LYT750x

725

V

NOTES:

A. Guaranteed by design.

B. This parameter is derived from characterization. Not production tested.

C. All parts are individually trimmed in production to deliver the best CC accuracy.