lt6109-1 Linear Technology Corporation, lt6109-1 Datasheet - Page 4
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lt6109-1
Manufacturer Part Number
lt6109-1
Description
High Side Current Sense Amplifer With Reference And Comparators
Manufacturer
Linear Technology Corporation
Datasheet
1.LT6109-1.pdf
(28 pages)
ELECTRICAL CHARACTERISTICS
LT6109-1/LT6109-2
temperature range, otherwise specifications are at T
R
SYMBOL
Reference and Comparator
V
(Note 10)
V
(Note 10)
V
V
t
t
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Input and output pins have ESD diodes connected to ground.
Note 3: The LT6109I is guaranteed to meet specified performance from
–40°C to 85°C. LT6109H is guaranteed to meet specified performance
from –40°C to 125°C.
Note 4: Supply current is specified with the comparator outputs high.
When the comparator outputs go low the supply current will increase by
75µA typically per comparator.
Note 5: This specification is limited by the accuracy of automated testing.
Note 6: The full-scale input sense voltage and the maximum output
current must be considered to achieve the specified performance.
4
RESET
RPW
TH(R)
TH(F)
HYS
OL
OUT
= R1 + R2 + R3 = 10k, gain = 100, R
PARAMETER
Rising Input Threshold Voltage
(LT6109-1 Comparator 1
LT6109-2 Both Comparators)
Falling Input Threshold Voltage
(LT6109-1 Comparator 2)
V
Comparator Input Bias Current
Output Low Voltage
High to Low Propagation Delay
Output Fall Time
Reset Time
Valid RST Pulse Width
HYS
= V
TH(R)
– V
TH(F)
(Note 5)
C
= 25.5k, C
CONDITIONS
V
V
V
V
I
5mV Overdrive
100mV Overdrive
OUTC1,C2
+
+
+
INC1,2
= 2.7V to 60V
= 2.7V to 60V
= 2.7V to 60V
= 0V, V
A
= 500µA, V
L
= 25°C. V
= C
+
LC
= 60V
The
= 2pF , unless otherwise noted. (See Figure 3)
+
l
+
= 2.7V
denotes the specifications which apply over the full operating
= 12V, V
Note 7: Supply voltage and input common mode voltage are varied while
amplifier input offset voltage is monitored.
Note 8: Specified gain error does not include the effects of external
resistors R
Note 9: Refer to SENSELO, SENSEHI Range in the Applications
Information section for more information.
Note 10: The input threshold voltage which causes the output voltage
of the comparator to transition from high to low is specified. The input
voltage which causes the comparator output to transition from low to high
is the magnitude of the difference between the specified threshold and the
hysteresis.
PULLUP
IN
= V
and R
+
, V
OUT
EN/RST
.
= 2.7V, R
l
l
l
l
l
IN
MIN
392
392
–50
= 100Ω,
3
2
0.08
TYP
400
400
0.5
0.5
10
60
3
MAX
408
408
150
220
15
15
UNITS
610912f
mV
mV
mV
mV
mV
nA
µs
µs
µs
µs
µs