LTC2908
TYPICAL PERFOR A CE CHARACTERISTICS
Specifications are at T
A
= 25°C unless otherwise noted.
RST Output Voltage vs V1 with
10k Pull-Up Resistor to V1
5.0
V1 = V2
V3 = 2.5V (A1)/V3 = 1.8V (B1)
V4 = 1.8V (A1)/V4 = 1.5V (B1)
V
ADJ1
= V
ADJ2
= 0.55V
0.4
RST PULL-DOWN CURRENT, I
RST
(mA)
RST OUTPUT VOLTAGE (V)
RST OUTPUT VOLTAGE (V)
4.0
3.0
2.0
1.0
V
RT33
LTC2908-B1
0
0
1
2
V1 (V)
2908 G13
V
RT50
LTC2908-A1
4
5
0
0
0.2
3
RST Pull-Down Current (I
RST
) vs
Supply Voltage (V
CC
) with Dual
Channel Supply
10
RST PULL-DOWN CURRENT, I
RST
(mA)
RST PULL-DOWN CURRENT, I
RST
(mA)
V
CC
= V1 = V2
V3 = V4 = V
ADJ1
= V
ADJ2
= GND
RST AT 150mV
10
1
1
RST OUTPUT VOLTAGE LOW, V
OL
(V)
0.1
RST AT 50mV
0.01
0.001
0
0.2
0.4
0.6
0.8
SUPPLY VOLTAGE, V
CC
(V)
1
2908 G16
RST Output Voltage Low (V
OL
)
vs RST Pull-Down Current (I
RST
)
LTC2908-B1
0.8
RST OUTPUT VOLTAGE LOW, V
OL
(V)
RST PULL-UP CURRENT, I
RST
(µA)
V1 = 3.3V
0.7 V2 = 2.5V
V3 = 1.8V
0.6 V4 = 1.5V
V
ADJ1
= V
ADJ2
= 0.4V
0.5
85°C
0.4
25°C
0.3
0.2
0.1
0
0
20
15
RST PULL-DOWN CURRENT, I
RST
(mA)
5
10
25
–40°C
U W
RST Output Voltage vs V1 with
10k Pull-Up Resistor to V1
V3 = V4 = V
ADJ1
=
V
ADJ2
= GND
6
5
4
3
2
1
0
RST Pull-Down Current (I
RST
)
vs Supply Voltage (V
CC
)
V
CC
= V1 = V2
V3 = V4 = V
ADJ1
= V
ADJ2
= GND
RST AT
150mV
0.3
0.2
V2 = GND
0.1
V2 = V1
RST AT
50mV
V
RT50
V
RT33
LTC2908-B1 LTC2908-A1
0
1
2
3
4
SUPPLY VOLTAGE, V
CC
(V)
5
2908 G15
0.4
V1 (V)
0.6
0.8
2908 G14
RST Pull-Down Current (I
RST
) vs
Supply Voltage (V
CC
) with Single
Channel Supply
V
CC
= V1
V2 = V3 = V4 = V
ADJ1
= V
ADJ2
= GND
RST Output Voltage Low (V
OL
)
vs RST Pull-Down Current (I
RST
)
LTC2908-A1
0.8
V1 = 5.0V
0.7 V2 = 3.3V
V3 = 2.5V
0.6 V4 = 1.8V
V
ADJ1
= V
ADJ2
= 0.4V
0.5
85°C
0.4
25°C
0.3
0.2
0.1
0
0
20
25
30
35
15
RST PULL-DOWN CURRENT, I
RST
(mA)
2908 G18
RST AT 150mV
0.1
–40°C
RST AT 50mV
0.01
0.001
0
0.2
0.4
0.6
0.8
SUPPLY VOLTAGE, V
CC
(V)
1
2908 G17
5
10
RST Pull-Up Current (I
RST
)
vs Supply Voltage (V
CC
)
–30
–25
–20
–15
–10
–5
V
RT33
LTC2908-B1
0
2
2.5
V
RT50
LTC2908-A1
5
2908 G20
V
CC
= V1 = V2
V3 = 2.5V (A1)/V3 = 1.8V (B1)
V4 = 1.8V (A1)/V4 = 1.5V (B1)
V
ADJ1
= V
ADJ2
= 0.55V
RST HELD AT 0V
4.5
3
3.5
4
SUPPLY VOLTAGE, V
CC
(V)
2908 G19
sn2908 2908fs
5
LINEAR [ LINEAR INTEGRATED SYSTEMS ]
