LTC6101/LTC6101HV
High Voltage,
High-Side Current Sense
Amplifier in SOT-23
FEATURES DESCRIPTION
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Supply Range:
The LTC 6101/LTC6101HV are versatile, high voltage, high
5V to 100V, 105V Absolute Maximum (LTC6101HV)
side current sense amplifiers. Design flexibility is provided
4V to 60V, 70V Absolute Maximum (LTC6101)
by the excellent device characteristics; 300V Max offset
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Low Offset Voltage: 300V Max
and only 375A (typical at 60V) of current consumption.
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Fast Response: 1s Response Time (0V to 2.5V on The LTC6101 operates on supplies from 4V to 60V and
a 5V Output Step) LTC6101HV operates on supplies from 5V to 100V.
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Gain Configurable with 2 Resistors
The LTC6101 monitors current via the voltage across an
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Low Input Bias Current: 170nA Max
external sense resistor (shunt resistor). Internal circuitry
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PSRR: 118dB Min
converts input voltage to output current, allowing for a
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Output Current: 1mA Max
small sense signal on a high common mode voltage to
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Low Supply Current: 250A, V = 12V
S
be translated into a ground referenced signal. Low DC
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Specified Temperature Range: 40C to 125C
offset allows the use of a small shunt resistor and large
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Operating Temperature Range: 55C to 125C
gain-setting resistors. As a result, power loss in the shunt
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Package Option for High Voltage Spacing
is reduced.
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Low Profile (1mm) SOT-23 (ThinSOT) Package
The wide operating supply range and high accuracy make
the LTC6101 ideal for a large array of applications from
APPLICATIONS
automotive to industrial and power management. A maxi-
mum input sense voltage of 500mV allows a wide range
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Current Shunt Measurement
of currents to be monitored. The fast response makes the
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Battery Monitoring
LTC6101 the perfect choice for load current warnings and
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Remote Sensing
shutoff protection control. With very low supply current,
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Power Management
the LTC6101 is suitable for power sensitive applications.
All registered trademarks and trademarks are the property of their respective owners.
The LTC6101 is available in 5-lead SOT-23 and 8-lead
MSOP packages.
TYPICAL APPLICATION
16-Bit Resolution Unidirectional Output into LTC2433 ADC
Step Response
I
LOAD V
SENSE
V
SENSE
R
IN 5V TO 105V
V = 100mV
SENSE
100
+IN
IN
5.5V
L +
V V
5V
O
A T = 25C
A
5V 1F
+
V = 12V
D
R = 100
IN
R = 5k
V
OUT OUT
+ +
V V = V
OUT
SENSE
OUT
LTC6101HV
I = 100A
OUT
LTC2433-1 TO P
0.5V
R I = 0
OUT OUT
4.99k 0V
500ns/DIV
6101 TA01
6101 TA01b
R
OUT
V = V = 49.9V
OUT SENSE SENSE
R
IN
Rev I
1
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+LTC6101/LTC6101HV
ABSOLUTE MAXIMUM RATINGS
(Note 1)
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Total Supply Voltage (V to V ) LTC6101I/LTC6101HVI ......................... 40C to 85C
LTC6101 ............................................................... 70V LTC6101H/LTC6101HVH ................... 55C to 125C
LTC6101HV ........................................................ 105V Specified T emperature Range (Note 2)
+
Minimum Input Voltage (IN Pin) .................... (V 4V) LTC6101C/LTC6101HVC ........................... 0C to 70C
Maximum Output Voltage (Out Pin) ............................9V LTC6101I/LTC6101HVI ......................... 40C to 85C
Input Current ....................................................... 10mA LTC6101H/LTC6101HVH ................... 40C to 125C
Output Short-Circuit Duration (to V ) .............. Indefinite Storage Temperature Range .................. 65C to 150C
Operating Temperature Range Lead Temperature (Soldering, 10 sec) ................. 300C
LTC6101C/LTC6101HVC .......................40C to 85C
PIN CONFIGURATION
VHV PINOUT
TOP VIEW
TOP VIEW
TOP VIEW
+IN 1 5 OUT
+
IN 1 8 +IN OUT 1 5 V
+
NC 2 7 V IN 2
V 2
NC 3 6 NC +
V 3 4 V
OUT 4 5 V IN 3 4 +IN
S5 PACKAGE
MS8 PACKAGE
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
8-LEAD PLASTIC MSOP
5-LEAD PLASTIC TSOT-23
T = 150C, = 300C/ W T = 150C, = 250C/W
JMAX JA
JMAX JA
T = 150C, = 250C/ W
JMAX JA
ORDER INFORMATION