Datasheet LT6119-1, LT6119-2 (Analog Devices) - 9

LT6119-1/LT6119-2
pin FuncTions SENSELO (Pin 1):
Sense Amplifier Input. This pin must
INC2 (Pin 7):
Input of Comparator 2. For the LT6119-1 be tied to the load end of the sense resistor. this is the noninverting input of comparator 2. For the LT6119-2 this is the inverting input of comparator 2. The
LE (Pin 2):
Latch Control Pin. When high, the comparator second input of each of these comparators is internally latch is enabled. With the comparator latch enabled, the connected to the 400mV reference. comparator output will latch at a low level once tripped. When the LE input is low, the comparator latch is disabled
OUTA (Pin 8):
Current Output of the Sense Amplifier. This and the comparator functions transparently. pin will source a current that is equal to the sense voltage divided by the external gain setting resistor, R
OUTC2 (Pin 3):
Open-Drain Comparator 2 Output. Off- IN. state voltage may be as high as 60V above V–, regardless
V+ (Pin 9):
Positive Supply Pin. The V+ pin can be con- of V+ used. nected directly to either side of the sense resistor, RSENSE. When V+ is tied to the load end of the sense resistor, the
OUTC1 (Pin 4):
Open-Drain Comparator 1 Output. Off- SENSEHI pin can go up to 0.2V above V+. Supply current state voltage may be as high as 60V above V–, regardless is drawn through this pin. of V+ used.
SENSEHI (Pin 10):
Sense Amplifier Input. The internal
V– (Pin 5):
Negative Supply Pin. This pin is normally con- sense amplifier will drive SENSEHI to the same potential nected to ground. as SENSELO. A resistor (typically RIN) tied from supply
INC1 (Pin 6):
Inverting Input of Comparator 1. The second to SENSEHI sets the output current, IOUT = VSENSE/RIN, input of this comparator is internally connected to the where VSENSE is the voltage developed across RSENSE. 400mV reference. 611912f For more information www.linear.com/LT6119-1 9 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagrams Applications Information Typical Applications Package Description Typical Application Related Parts