MAX6375 Datasheet, PDF (4/7 Pages) Maxim Integrated Products – 3-Pin, Ultra-Low-Power SC70/SOT23 Voltage Detectors

3-Pin, Ultra-Low-Power SC70/SOT23
Voltage Detectors
____________ Applications Information
Interfacing to Different
Logic Voltage Components
The MAX6377/MAX6380 have an active-low, open-
drain output. This output structure sinks current when
OUT is asserted. Connect a pullup resistor from OUT to
any supply voltage up to 5.50V (Figure 1). Select a
resistor value large enough to allow a valid logic low
(see Electrical Characteristics), and small enough to
register a logic high while supplying all input current
and leakage paths connected to the OUT line.
Negative-Going V_CC Transients
These devices are relatively immune to short-duration,
negative-going V_CC transients (glitches). The Typical
Operating Characteristics show the Maximum Transient
Duration vs. Threshold Overdrive graph, for which out-
put pulses are not generated. The graph shows the
maximum pulse width that a negative-going V_CC tran-
sient may typically have before the devices issue out-
put signals. As the amplitude of the transient increases,
the maximum-allowable pulse width decreases.
V_IN
DC/DC
V_OUT
CONVERTER
REGULATED
3.0V
V_CC
3.6V
Li+
µP
V_CC
OUT
MAX6377
SUSPEND
(OPEN-DRAIN)
Figure 1. Interfacing to Different Logic Voltage Components
Table 1. Factory-Trimmed Reset Thresholds^‡
PART
MAX6375_R
MAX6376_R
MAX6377_R
SUFFIX
22
23
24
25
26
27
28
29
30
31
MIN
2.167
2.285
2.364
2.462
2.591
2.660
2.758
2.886
2.955
3.034
RESET THRESHOLD VOLTAGE, V_TH (V)
T_A = +25°C
TYP
MAX
T_A = -40°C TO +85°C
MIN
MAX
2.200
2.233
2.145
2.250
2.320
2.355
2.262
2.375
2.400
2.436
2.340
2.460
2.500
2.537
2.437
2.562
2.630
2.669
2.564
2.696
2.700
2.741
2.633
2.768
2.800
2.842
2.730
2.870
2.930
2.974
2.857
3.000
3.000
3.045
2.925
3.075
3.080
3.126
3.003
3.150
‡_{Factory-trimmed reset thresholds are available in approximately 100mV increments with a 1.5% room-temperature variance.}
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