LTC6101

Features:

Supply Range:
5V to 100V, 105V Absolute Maximum (LTC6101HV)
4V to 60V, 70V Absolute Maximum (LTC6101)
Low Offset Voltage: 300µ µ µ µ µV Max
Fast Response: 1µ µ µ µ µs Response Time (0V to 2.5V on a 5V Output Step)
Gain Configurable with 2 Resistors
Low Input Bias Current: 170nA Max
PSRR: 110dB Min
4V to 60V (LTC6101)
5V to 100V (LTC6101HV)
Output Current: 1mA Max
Low Supply Current: 250µA, VS = 14V
Low Profile (1mm) SOT-23 (ThinSOTTM ) Package


Application

Current Shunt Measurement
Battery Monitoring
Remote Sensing
Power Management


Pinout

Specifications

Total Supply Voltage (V+ to V)
LTC6101 .............................................................    70V
LTC6101HV ......................................................     105V
Minimum Input Voltage (IN Pin) ...................(V+ 4V)
Maximum Output Voltage (Out Pin) ..........................9V
Input Current ....................................................±10mA
Output Short-Circuit Duration (to V) ............Indefinite
Operating Temperature Range
LTC6101C/LTC6101HVC ....................    40°C to 85°C
LTC6101I/LTC6101HVI ...................... 40°C to 85°C
LTC6101H/LTC6101HVH .................   40°C to 125°C
Specified Temperature Range (Note 2)
LTC6101C/LTC6101HVC ......................... 0°C to 70°C
LTC6101I/LTC6101HVI ......................  40°C to 85°C
LTC6101H/LTC6101HVH .................   40°C to 125°C
Storage Temperature Range ........... 65°C to 150°C
Lead Temperature (Soldering, 10 sec) ............ 300°C


Description

The LTC^® 6101/LTC6101HV are versatile, high voltage, high side current sense amplifiers. Design flexibility is provided by the excellent device characteristics; 300µV Max offset and only 375µA (typical at 60V) of current consumption. The LTC6101 operates on supplies from 4V to 60V and LTC6101HV operates on supplies from 5V to 100V.

The LTC6101 monitors current via the voltage across an external sense resistor (shunt resistor). Internal circuitry converts input voltage to output current, allowing for a small sense signal on a high common mode voltage to be translated into a ground referenced signal. Low DC offset allows the use of a small shunt resistor and large gain-setting resistors. As a result, power loss in the shunt is reduced. The wide operating supply range and high accuracy make the device ideal for a large array of applications from automotive to industrial and power management. A maximum input sense voltage of 500mV allows a wide range of currents to be monitored. The fast response makes the LTC6101 the perfect choice for load current warnings and shutoff protection control.  With very low supply current, the LTC6101 is suitable for power sensitive applications.