MAX707, MAX708
http://onsemi.com
4
PIN DESCRIPTION (Pin No. with parentheses is for Micro8 package.)
Pin No. Symbol Description
1 (3) MR Manual Reset Input. MR can be driven from TTL/CMOS logic or from a manual Reset switch. This input, when
floating, is internally pulled up to V
CC
with 50 kW resistor.
2 (4) V
CC
Supply Voltage: C = 100 nF is recommended as a bypass capacitor between V
CC
and GND.
3 (5) GND Ground Reference
4 (6) PFI Power Fail Voltage Monitor Input. When PFI is less than 1.25 V, PFO goes low. Connect PFI to GND or V
CC
when
not used.
5 (7) PFO Power Fail Monitor Output. When PFI is less than 1.25 V, it goes low and sinks current. Otherwise, it remains high.
6 (8) NC Non−connective Pin
7 (1) RESET Active Low RESET can be triggered by V
CC
below the threshold level or by a low signal on MR. It remains low for
200 ms (typ.) after V
CC
rises above the reset threshold.
8 (2) RESET Active high RESET output the inverse of RESET one.
16
12
18
10
14
0
20
8
6
4
2
3.0
0.5
1.0
0
OUT
, OUTPUT SINK CURRENT (mA)
0
Figure 2. MAX707/708 Series 1.60 V Reset
Output Sink Current vs. Output Voltage
Figure 3. MAX707/708 Series 1.60 V Reset
Output Source Current vs. Input Voltage
Figure 4. MAX707/708 Series 2.93 V Reset
Output Sink Current vs. Output Voltage
Figure 5. MAX707/708 Series 2.93 V Reset
Output Source Current vs. Input Voltage
V
in
, INPUT VOLTAGE (V)
I
out
, OUTPUT SOURCE CURRENT (mA)
V
out
, OUTPUT VOLTAGE (V)
2.0
2.0
0.0 1.0 6.
2.0 3.0 4.0 5.0
T
A
= 25°C
V
in
− 1.0 V
V
in
−1.5 V
V
in
− 0.5 V
V
out
= V
in
− 2.0 V
2.5
1.5
0.5
1.0 1.5
20
3.0
12
0
I
OUT
, OUTPUT SOURCE CURRENT (mA
0
V
in
, INPUT VOLTAGE (V)
16
2.0
18
14
10
1.0 4.0
4
8
6
2
5.0 6.
OUT
, OUTPUT SINK CURRENT (mA)
12
0
10
4
8
6
2
0.50
V
out
, OUTPUT VOLTAGE (V)
2.01.0 1.5 2.5 3.0
V
in
= 2.5 V
V
in
= 2.0 V
V
in
= 1.5 V
T
A
= 25°C
V
in
= 1.0 V
V
in
= 1.5 V
T
A
= 25°C
T
A
= 25°C
V
in
− 1.0 V
V
in
− 1.5 V
V
in
− 0.5 V
V
out
= V
in
− 2.0 V
