Manual

MAX834/MAX835
Micropower, Latching Voltage Monitors
in SOT23-5
_______________________________________________________________________________________ 5
_____________________________Typical Operating Characteristics (continued)
(V
CC
= +5V, Typical Operating Circuit, T
A
= +25°C, unless otherwise noted.)
1
10
100
1k
10k
0.1 100

OUTPUT LOW VOLTAGE
vs. OUTPUT SINK CURRENT
OUTPUT SINK CURRENT (mA)
V
OL
(mV)
110
MAXMAX834/835-27


T
A
= +25°C
T
A
= +85°C
V
CC
= 3.6V
T
A
= -40°C
1
10
100
1k
10k
0.1 10

MAX835
OUTPUT HIGH VOLTAGE
vs. OUTPUT SOURCE CURRENT
OUTPUT SOURCE CURRENT (mA)
V
CC
- V
OH
(mV)
1
MAXMAX834/835-29

T
A
= +85°C

V
CC
= 3.6V
T
A
= -40°C
T
A
= +25°C
1.5
0.1
-60 -40 0
20
100
CLEAR TO OUT PROPAGATION DELAY
vs. TEMPERATURE
0.9
0.7
0.5
0.3
1.1
MAXMAX834/835-30
TEMPERATURE (°C)
PROPAGATION DELAY (µs)
-20 40 60 80
1.3
V
CC
= 11.0V
V
CC
= 5.0V
V
CC
= 3.6V
V
IN
> V
TH
______________________________________________________________Pin Description
Open-Drain (MAX834) or Push/Pull (MAX835) Latched Output. OUT is active low.OUT
5
Noninverting Input to the Comparator. The inverting input connects to the internal 1.204V bandgap reference.IN4
System Supply InputV
CC
3
PIN
System GroundGND2
Clear Input resets the latched output. With V
IN
> V
TH
, pulse CLEAR high for a minimum of 1µs to reset the
output latch. Connect to V
CC
to make the latch transparent.
CLEAR
1
FUNCTIONNAME
LATCH
OUT
V
CC
CLEAR
GND
1.204V
IN
MAX834
MAX835
Figure 1. Functional Diagram Figure 2. Programming the Trip Voltage (V
TRIP
)
CLEAR
LATCH
OUT
V
CC
V
CC
V
CC
R2
R1
R
L
(MAX834 ONLY)
0.1µF
OUT
CLEAR
GND IN
MAX834
MAX835
V
TRIP
= (1.204) ( )
(UNITS ARE OHMS AND VOLTS)
R1 + R2
R2