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LTC4261/LTC4261-2

42612fd

For more information www.linear.com/LTC4261

(Pin 13/Pin 8): Negative Supply Voltage Input and

Device Ground. Connect this pin to the negative side of

the power supply.

(Pin 21/Pin 15): Positive Supply Input. Connect this

pin to the positive supply through a dropping resistor. An

internal shunt regulator clamps V

at 11.2V. An internal

undervoltage lockout (UVLO) circuit holds the GATE low

until V

is above 9V. Bypass this pin with a 1µF capacitor

to V

UVH (Pin 9/Pin 6): Undervoltage High Level Input. Con-

nect this pin to an external resistive divider from V

. If

the voltage at the UVH pin rises above 2.56V the pass

transistor is allowed to turn on. A small capacitor at this

pin prevents transients and switching noise from affecting

the UVH threshold. Connect to INTV

if unused.

UVL (Pin 8/Pin 5): Undervoltage Low Level Input. Con-

nect this pin to an external resistive divider from V

. If

the voltage at the UVL pin drops below 2.291V, the pass

transistor is turned off and the power good outputs go

high impedance. Pulling this pin below 1.21V resets faults

and allows the pass transistor to turn back on. Connect

to INTV

if unused.

PIN FUNCTIONS

(SSOP/QFN)

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 33 34

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ADC 2 Spezifikationen Seite 10