LTC2913

5

2913fa

PIN FUNCTIONS

UV/OV Voltage Output Low vs

Output Sink Current

TYPICAL PERFORMANCE CHARACTERISTICS

Reset Timeout Period vs

Temperature

Reset Timeout Period vs

Capacitance

DIS (Pin 8, LTC2913-2): Output Disable Input. Disables

the OV and UV output pins. When DIS is pulled high, the

OV and UV pins are not asserted except during a UVLO

condition. DIS has a weak (2µA) internal pull-down to

GND. Leave DIS open if unused.

Exposed Pad (Pin 11, DFN Package): Exposed Pad may

be left open or connected to device ground.

GND (Pin 5): Device Ground.

LATCH (Pin 8, LTC2913-1): OV Latch Clear/Bypass Input.

When pin is pulled low, OV is latched when asserted. When

pulled high, OV latch is cleared. While held high, OV has

the same delay and output characteristics as UV.

OV (Pin 6): Overvoltage Logic Output. Asserts low when

either VL input voltage is above threshold. Latched low

(LTC2913-1). Held low for programmed delay time after

both VL inputs are valid (LTC2913-2). OV has a weak pull-

pull-up. Leave OV open if unused.

0

3

4

5

4

2913 G07

2

1

0

1

2

3

5

VHn = 0.55V

0

3

4

5

4

2913 G08

2

1

0

1

2

3

5

UV AT 150mV

UV AT 50mV

VHn = 0.45V

0

0

0.2

0.4

0.6

0.8

1.0

125

°C

–40

°C

25

°C

5

10

15

20

2913 G09

25

30

TEMPERATURE (

°C)

–50

6

7

8

9

10

12

–25

0

25

50

2913 G10

75

100

11

0.1

1

1

100

10000

10

100

1000

2913 G11

10

1000