PRELIMINARY INFORMATION
LOW POWER, BANDGAP
VOLTAGE REFERENCES
LM285/285B-1.2V
LM285/285B-2.5V
LM385/385B-1.2V
LM385/385B-2.5V
TYPICAL CHARACTERISTICS
LM285/385-1.2V: Output Voltage vs
Reverse Current
LM285/385-1.2V: Output Voltage Change
vs Reverse Current
LM285/385-1.2V: Forward Voltage vs
Forward Current
10
8
1.2
1000
T
= +25°C
T
= +25°C
A
A
T
= +25°C
A
1.0
0.8
0.6
0.4
0.2
0
100
10
1
6
4
2
0
0.1
0
0.25 0.5 0.75 1.0 1.25
OUTPUT VOLTAGE (V)
0.01
0.1
1
10
100
0.01
0.1
1
10
100
1.5
FORWARD CURRENT (mA)
REVERSE CURRENT (mA)
LM285/385-2.5V: Output Voltage vs
Reverse Current
LM285/385-1.2V
Response Time
LM285/385-2.5V: Output Voltage Change
vs Reverse Current
1000
100
10
10
10.0
5.0
T
= +25°C
A
T
= +25°C
A
T
= +25°C
A
8
INPUT
0
1.5
1.0
0.5
0
6
4
OUTPUT
1
2
0
0.1
0
0.5
1.0
1.5
2.0
2.5
3.0
0.01
0.1
1
10
100
0
200
400
600
TIME (µsec)
OUTPUT VOLTAGE (V)
REVERSE CURRENT (mA)
LM285/385-2.5V
Response Time
LM285/385-2.5V: Forward Voltage vs
Forward Current
10
1.2
1.0
0.8
0.6
0.4
0.2
0
T
= +25°C
T
= +25°C
A
A
5
0
INPUT
OUTPUT
200
3
2
1
0
0.01
0.1
1
10
100
0
400
600
FORWARD CURRENT (mA)
TIME (µsec)
3-12
TELCOM SEMICONDUCTOR, INC.
TELCOM [ TELCOM SEMICONDUCTOR, INC ]
