Datasheet

LTC4223-1/LTC4223-2
5
422312f
V
CC
(V)
2.5
0
I
CC
(mA)
0.4
0.8
1.2
1.6
3.0 3.5 4.0 4.5
422312 G01
5.0 5.5 6.0
TEMPERATURE (°C)
–50
0
SUPPLY CURRENT (mA)
0.2
0.4
0.6
0.8
1.0
–25
02550
422312 G02
75 100
12V
IN
V
CC
AUXIN
TEMPERATURE (°C)
12IMON GAIN RATIO (V/V)
422312 G03
–50
31
32
33
34
35
–25 0 25 50 70 100
SENSE VOLTAGE (mV)
0
0
12IMON OUTPUT VOLTAGE (V)
1
2
3
4
20 40 60 80
422312 G04
100 120 140
TEMPERATURE (°C)
12V
OUT
POWER-GOOD THRESHOLD (V)
422312 G05
RISING
FALLING
–50
10.0
10.1
10.2
10.3
10.4
–25 0 25 50 75 100
TEMPERATURE (°C)
AUXOUT POWER-GOOD THRESHOLD (V)
422312 G06
RISING
FALLING
–50
2.84
2.86
2.88
2.90
2.92
–25 0 25 50 75 100
TEMPERATURE (°C)
CIRCUIT BREAKER TRIP VOLTAGE (mV)
422312 G07
–50
48
49
50
51
52
–25 0 25 50 75 100
TEMPERATURE (°C)
ACTIVE CURRENT LIMIT SENSE VOLTAGE (mV)
422312 G08
–50
58
59
60
61
62
–25 0 25 50 75 100
TEMPERATURE (°C)
–50
200
AUX ACTIVE CURRENT LIMIT (mA)
210
220
230
240
250
–25
02550
422312 G09
75 100
TYPICAL PERFORMANCE CHARACTERISTICS
I
CC
vs V
CC
Supply Current vs Temperature
12IMON Gain Ratio vs
Temperature
12IMON Output Voltage vs Sense
Voltage
12V
OUT
Power-Good Threshold vs
Temperature
AUXOUT Power-Good Threshold
vs Temperature
Circuit Breaker Trip Voltage vs
Temperature
Active Current Limit Sense
Voltage vs Temperature
AUX Active Current Limit vs
Temperature
Specifi cations are T
A
= 25°C, V
CC
= 3.3V, V
AUXIN
=
3.3V, V
12VIN
=12V, unless otherwise specifi ed.