MAX6790 Maxim Integrated Products, MAX6790 Datasheet - Page 7

• Manufacturer Part Number: MAX6790
• Description: (MAX6782 - MAX6790) Battery Monitors
• Manufacturer: Maxim Integrated Products

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DataSheet
4
MAX6782/MAX6783/MAX6784/MAX6785
U
Battery Monitors in Small TDFN and TQFN Packages
MAX6782/
MAX6783
.com
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level
PIN
MAX6784/
MAX6785
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
—
—
—
10
11
—
12
1
2
3
4
5
6
7
8
9
HADJ1
HADJ2
HADJ3
HADJ4
NAME
LBO4
LBO3
LBO2
LBO1
BATT
GND
N.C.
REF
IN2
IN3
IN4
IN1
Battery Monitor Input 2. Connect to an external resistive divider to set the trip
threshold for monitor 2.
Battery Monitor Input 3. Connect to an external resistive divider to set the trip
threshold for monitor 3.
Battery Monitor Input 4. Connect to an external resistive divider to set the trip
threshold for monitor 4.
Reference Output. REF can source up to 1mA. REF does not require an external
bypass capacitor for stability. Keep the capacitance from REF to GND below 50pF.
Hysteresis Adjustment Input 1.
Connect HADJ1 to GND to select an internal preset hysteresis option.
Connect a resistive divider from REF to HADJ1 and to GND to externally adjust the
hysteresis for IN1 from its internal preset hysteresis (see Figure 6).
Hysteresis Adjustment Input 2.
Connect HADJ2 to GND to select an internal preset hysteresis option.
Connect a resistive divider from REF to HADJ2 and to GND to externally adjust the
hysteresis for IN2 from its internal preset hysteresis (see Figure 6).
Hysteresis Adjustment Input 3.
Connect HADJ3 to GND to select an internal preset hysteresis option.
Connect a resistive divider from REF to HADJ3 and to GND to externally adjust the
hysteresis for IN3 from its internal preset hysteresis (see Figure 6).
Hysteresis Adjustment Input 4.
Connect HADJ4 to GND to select an internal preset hysteresis option.
Connect a resistive divider from REF to HADJ4 and to GND to externally adjust the
hysteresis for IN4 from its internal preset hysteresis (see Figure 6).
Active-Low, Low-Battery Output 4. LBO4 asserts when V
threshold voltage. LBO4 deasserts when V
Active-Low, Low-Battery Output 3. LBO3 asserts when V
threshold voltage. LBO3 deasserts when V
Active-Low, Low-Battery Output 2. LBO2 asserts when V
threshold voltage. LBO2 deasserts when V
Active-Low, Low-Battery Output 1. LBO1 asserts when V
threshold voltage. LBO1 deasserts when V
Battery Input. Power supply to the device. For better noise immunity, bypass BATT
to GND with a 0.1µF capacitor as close to the device as possible.
Ground
No Connection. Not internally connected.
Battery Monitor Input 1. Connect to an external resistive divider to set the trip
threshold for monitor 1.
FUNCTION
IN4
IN3
IN2
IN1
exceeds the rising threshold voltage.
exceeds the rising threshold voltage.
exceeds the rising threshold voltage.
exceeds the rising threshold voltage.
IN4
IN3
IN2
IN1
Pin Description
falls below the falling
falls below the falling
falls below the falling
falls below the falling
7