MAX6783TEA+ Maxim Integrated Products, MAX6783TEA+ Datasheet - Page 12
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MAX6783TEA+
Manufacturer Part Number
MAX6783TEA+
Description
IC BATT MON QUAD .5% 16TQFN
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX6782TEB.pdf
(17 pages)
Specifications of MAX6783TEA+
Function
Battery Monitor
Battery Type
Alkaline, Li-Ion, NiCd, NiMH
Voltage - Supply
1.2 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-TQFN Exposed Pad
Number Of Voltages Monitored
4
Monitored Voltage
- 0.3 V to + 6 V
Undervoltage Threshold
0.5994 V, Adjustable
Overvoltage Threshold
0.6115 V, Adjustable
Output Type
Active Low, Open Drain
Manual Reset
Not Resettable
Watchdog
No Watchdog
Battery Backup Switching
Backup
Supply Voltage (max)
5.5 V
Supply Voltage (min)
1.2 V
Supply Current (typ)
10 uA
Maximum Power Dissipation
1667 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Power Fail Detection
No
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX6782–MAX6785 have factory-set hysteresis for
ease of use and reduced external parts count. For
these devices the absolute hysteresis voltage is a per-
centage of the internally generated reference. The
amount depends on the device option. “A” devices
have 0.5% hysteresis, “B” devices have 5% hysteresis,
and “C” devices have 10% hysteresis. Table 2 presents
the threshold voltages for devices with factory-set hys-
teresis. For factory-set hysteresis, connect HADJ_ to
GND.
Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level
Battery Monitors in Small TDFN and TQFN Packages
Figure 5. MAX6789/MAX6790 Timing
Table 2. Typical Falling and Rising
Thresholds for MAX6782–MAX6785
(HADJ_ = GND)
12
OPTION
DEVICE
CLEAR
______________________________________________________________________________________
C
A
B
IN_
OV
OV
HYSTERESIS
PERCENT
MAX6782–MAX6785 Hysteresis
(%)
0.5
10
5
t
PD
THRESHOLD
FALLING
(V
0.6055
0.5781
0.5477
INF
Factory-Set Hysteresis
) (V)
THRESHOLD
(V
RISING
0.6085
0.6085
0.6085
INR
) (V)
The MAX6782–MAX6785 can also be configured for
externally adjustable hysteresis. Connect a resistive
divider from REF to HADJ_ and to GND (Figure 6) to set
the hysteresis voltage. The hysteresis adjustment range
is from 0.4V to V
(V
Adjustment Logic High (V
V
(V
tory-set hysteresis (Figure 4a).
The MAX6786/MAX6787/MAX6788 offer external hystere-
sis control through the resistive divider that monitors bat-
tery voltage. Figure 2 shows the connections for external
hysteresis. See Calculating an External Hysteresis
Resistive Divider (MAX6786/MAX6787/MAX6788) section
for more information.
HADJ_
HALL
HADJ_
MAX6786/MAX6787/MAX6788 Adjustable
), these devices switch back to the internal fac-
is lower than Hysteresis Adjustment Logic Low
) must be set higher than Hysteresis
REF
V
V
Externally Adjusted Hysteresis
TH-
TH+
, and the voltage at HADJ_
HALH
t
) (Figure 4b). Note that if
CLD
Hysteresis