LM25069

SNVS607E – FEBRUARY 2011 – REVISED MARCH 2013

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Electrical Characteristics (continued)

to +85°C. Minimum and Maximum limits are ensured through test, design, or statistical correlation. Typical values represent

following conditions apply: VIN = 12V.

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Units

Power Limit (PWR pin)

Power limit sense voltage (VIN-SENSE)

19

25

31

mV

19

25

31

mV

PWR pin current

-15

µA

PWR pin impedance when disabled

UVLO = 0.7V

140

Ω

Gate Control (GATE pin)

Source current

Normal Operation

-27

-20

-13

µA

Sink current

UVLO = 1V

1.5

2

2.7

mA

VIN - SENSE = 150 mV or VIN < POR,

160

260

375

mA

Gate output voltage in normal operation

GATE voltage with respect to ground

18

19.5

21

V

Current Limit

Threshold voltage

VIN-SENSE voltage

45

50

55

mV

Response time

VIN-SENSE stepped from 0 mV to 80 mV

15

µs

SENSE input current

Enabled, SENSE = OUT

23

µA

Disabled, OUT = 0V

12

Enabled, OUT = 0V

62

Circuit Breaker

Threshold voltage

VIN - SENSE

75

95

110

mV

Response time

VIN - SENSE stepped from 0 mV to 150

0.19

0.36

µs

mV, time to GATE low, no load

Timer (TIMER pin)

Upper threshold

1.6

1.72

1.85

V

Lower threshold

Restart cycles (LM25069-2)

0.9

1.0

1.1

V

End of 8th cycle (LM25069-2)

0.3

V

Re-enable Threshold (LM25069-1)

0.3

V

Insertion time current

-7.5

-5.5

-3.5

µA

Sink current, end of insertion time

TIMER pin = 2V

1.5

2

2.5

mA

Fault detection current

-110

-80

-50

µA

Fault sink current

1.6

2.5

3.4

µA

Fault Restart Duty Cycle

LM25069-2 only

0.67

%

Fault to GATE low delay

TIMER pin reaches the upper threshold

20

µs

Power Good (PGD pin)

Threshold measured at SENSE-OUT

Decreasing

1.3

1.9

V

Threshold Hysteresis

0.6

Output low voltage

15

30

mV

Off leakage current

1

µA

4

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