Datasheet

MAX6457–MAX6460
High-Voltage, Low-Current Voltage Monitors in
SOT Packages
3
Maxim Integrated
Note 1: Devices are production tested at T
A
= +25°C. Overtemperature limits are guaranteed by design.
Note 2: IN voltage monitoring requires that V
CC
≥ 4V, but OUT remains asserted in the correct undervoltage lockout state for V
CC
down to 1.5V.
Note 3: Startup time is the time required for the internal regulator and reference to reach specified accuracy after the monitor is
powered up from GND.
Note 4: The open-drain output can be pulled up to a voltage greater than V
CC
but cannot exceed +28V.
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 4V to 28V, T
A
= -40°C to +125°C, unless otherwise specified. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
V
CC
≥ 1.5V, I
SINK
= 250µA, OUT asserted,
T
A
= -40°C to +85°C
0.4
Output Voltage Low V
OL
V
CC
≥ 4.0V, I
SINK
= 1mA, OUT asserted,
T
A
= -40°C to +125°C
0.4
V
Output Leakage Current I
LKG
V
CC
= 5V, V
OUT
= 28V (Note 4) 500 nA
Output Short-Circuit Sink
I
SC
OUT asserted, OUT = V
CC
10 mA
MAX6460
Reference Short-Circuit Current REF = GND 7 mA
T
A
= -40°C to +85°C 2.183 2.25 2.303
Reference Output Voltage V
REF
T
A
= +85°C to +125°C 2.171 2.25 2.303
V
Load Regulation
Sourcing: 0 ≤ I
REF
≤ 100µA,
sinking: 0 ≤ |I
REF
| ≤ 300nA
50 µV/µA
Input Offset Voltage V
OFFSET
-4.5 +4.5 mV
Input Hysteresis 6mV
Input Bias Current I
BIAS
V
IN
+ = 1.4V, V
IN
- = 1V -25 +25 nA
Input Offset Current I
OFFSET
2pA
Common-Mode Voltage Range CMVR 0 1.4 V
Common-Mode Rejection Ratio CMRR 80 dB
Comparator Power-Supply
Rejection Ratio
PSRR V
IN
+ = V
IN
- = 1.4V 80 dB