Datasheet

LTC4267-3
5
42673fa
Input Current vs Input Voltage
25k Detection Range
Input Current vs Input Voltage
Classification Range Input Current vs Input Voltage
Input Current vs Input Voltage
Signature Resistance
vs Input Voltage
Normalized UVLO Threshold
vs Temperature
Power Good Output Low Voltage
vs Current P
OUT
Leakage Current Current Limit vs Input Voltage
V
PORTN
VOLTAGE (V)
0
0
INPUT CURRENT (mA)
0.1
0.2
0.3
0.4
0.5
–2
–4 –6 –8
42673 G01
–10
T
A
= 25°C
V
PORTN
VOLTAGE (V)
–12
9.0
INPUT CURRENT (mA)
9.5
10.5
11.0
11.5
–14
–16
42673 G03
10.0
–18
–20 –22
12.0
85°C
–40°C
CLASS 1 OPERATION
V
PORTN
VOLTAGE (V)
0
0
INPUT CURRENT (mA)
10
20
30
40
50
–10
–20 –30 –40
42673 G02
–50 –60
CLASS 4
CLASS 3
CLASS 2
CLASS 1
CLASS 0
T
A
= 25°C
V
PORTN
VOLTAGE (V)
0
INPUT CURRENT (mA)
1
2
3
–45 –55
42673 G04
–60–40 –50
EXCLUDES ANY LOAD CURRENT
T
A
= 25°C
V
PORTN
VOLTAGE (V)
–1
22
V1:
V2:
SIGNATURE RESISTANCE (kΩ)
23
25
26
27
–3
–5
42673 G05
24
–7
–9
–6 –10
–2 –4
–8
28
RESISTANCE =
DIODES: S1B
T
A
= 25°C
=
∆V
∆I
V2 – V1
I
2
– I
1
IEEE UPPER LIMIT
IEEE LOWER LIMIT
LTC4267-3 + 2 DIODES
LTC4267-3 ONLY
CURRENT (mA)
0
V
PG_OUT
(V)
2
3
8
42673 G07
1
0
2
4
6
10
4
T
A
= 25°C
P
OUT
PIN VOLTAGE (V)
0
0
V
OUT
CURRENT (µA)
30
60
120
90
20 40
42673 G08
60
V
IN
= 0V
T
A
= 25°C
V
PORTN
VOLTAGE (V)
–40
CURRENT LIMIT (mA)
200
–60
42673 G09
100
–45
–50
–55
400
300
85°C
85°C
– 40°C
– 40°C
HIGH CURRENT MODE
LOW CURRENT MODE
TEMPERATURE (°C)
–40
–2
NORMALIZED UVLO THRESHOLD (%)
–1
0
1
2
–20 0 20 40
42673 G06
60 80
APPLICABLE TO TURN-ON
AND TURN-0FF THRESHOLDS
TYPICAL PERFORMANCE CHARACTERISTICS