lt6109-1 Linear Technology Corporation, lt6109-1 Datasheet - Page 7
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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)
TYPICAL PERFORMANCE CHARACTERISTICS
V
otherwise noted. (See Figure 3)
+
= 12V, V
–10
–15
–20
20
15
10
20
18
16
14
12
10
10
–5
25
0
8
6
4
2
0
5
0
5
– 40
0
Comparator Input Bias Current
vs Input Voltage
Comparator Threshold
Distribution
Hysteresis vs Temperature
396.4
–25
PULLUP
COMPARATOR INPUT VOLTAGE (V)
COMPARATOR THRESHOLD (mV)
–10
397.6
5
TEMPERATURE (°C)
398.8
20
= V
20
+
35
, V
400.0 401.2 402.4 403.6
EN/RST
50
65
40
80
= 2.7V, R
95
125°C
25°C
–40°C
610912 G19
610912 G22
610912 G25
110
125
IN
60
= 100Ω, R
–10
–15
–20
408
406
404
402
400
398
396
392
394
10
–5
14
12
10
5
0
8
6
4
2
0
–40 –25
0
0
Comparator Threshold
vs Temperature
Hysteresis vs Supply Voltage
Comparator Input Bias Current
vs Input Voltage
OUT
5 TYPICAL PARTS
5 TYPICAL PARTS
COMPARATOR INPUT VOLTAGE (V)
= R1 + R2 + R3 = 10k, gain = 100, R
10
–10 5 20 35
0.2
TEMPERATURE (°C)
20
0.4
V
+
30
(V)
50
0.6
65
40
80
0.8
95
50
125°C
25°C
–40°C
Performance characteristics taken at T
610912 G26
610912 G23
610912 G20
110
125
1.0
60
LT6109-1/LT6109-2
C
–100
–150
–200
–250
= 25.5k, C
1.00
0.75
0.50
0.25
–50
50
30
25
20
15
10
0
0
5
0
3.0
0
0
Hysteresis Distribution
EN/RST Current vs Voltage
Comparator Output Low Voltage
vs Output Sink Current
4.6 6.2 7.7 9.3 10.9 12.5 14.1
COMPARATOR HYSTERESIS (mV)
10
125°C
25°C
–40°C
L
–40°C
= C
EN/RST VOLTAGE (V)
20
LC
1
I
= 2pF , unless
OUTC
25°C
30
(mA)
A
40
2
= 25°C,
15.7 17.3
50
610912 G24
610912 G21
610912 G27
125°C
610912f
7
60
3