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DA9072 Datasheet(PDF) 43 Page - Dialog Semiconductor

Part # DA9072
Description  Ultra-Low Quiescent Current PMIC
PDF  113 Pages
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Manufacturer  DIALOG [Dialog Semiconductor]
Direct Link  http://www.dialog-semiconductor.com/
Logo DIALOG - Dialog Semiconductor

DA9072 Datasheet(HTML) 43 Page - Dialog Semiconductor

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DA9072
Ultra-Low Quiescent Current PMIC
Datasheet
Revision 3.0
14-Jun-2021
CFR0011-120-00
43 of 113
© 2021 Dialog Semiconductor
Connect a resistor (RITER_CHG) from the ITER_CHG pin to ground. Table 32 shows the recommended
resistor values to set the pre-charge and termination currents.
Table 32: ITER_CHG Pin Recommended Resistor Values
% of ICHG (Typ)
Resistance (k
Ω)
5
68
10
22
15
8.2
20
2.2
Register setting at 0x0023 is used
0
Once VDD_PWR is connected, ICHG_PRE and ITER values can be read at register 0x0020 [5:4].
ICHG_PRE cannot be set higher than 50 mA, or lower than 0.5 mA. Settings which are out of range
result in the minimum or maximum current setting. For example, with a 400 mA fast charge current, a
20 % setting would result in 80 mA, but the actual pre-charge current is the maximum value, 50 mA.
4.7.2
Input Current Limit Programming
VDD_PWR input current limit (IDDPWR_LIM) is programmed by a resistor connected from the ILIM_PWR
pin to ground. The resistor value is calculated as:
��������������������_������������(Ω) =
1000
������������������������_������������(����)
Not all current limit register settings are available in Resistor Setting mode. The available current limit
settings and corresponding resistor values are shown in Table 33.
Table 33: ILIM_PWR Pin Recommended Resistor Values
IDDPWR_LIM (Typ)
Resistance (k
Ω)
Register setting at 0x0027 is used
0
600 mA
1.6
500 mA
2.0
400 mA
2.7
300 mA
3.6
200 mA
5.1
150 mA
6.8
100 mA
10.0
50 mA
20.0
4.7.3
Charge Current Programming
Fast charge current (ICHG) is programmed by a resistor connected from the ILIM_CHG pin to ground.
The resistor value is calculated as:
��������������������_������������(Ω) =
1000
����������������(����)
Not all fast charge register settings are available. The available current limit settings and
corresponding resistor values are shown in Table 34.
Table 34: ILIM_CHG Pin Recommended Resistor Values
ICHG (Typ)
Resistance (k
Ω)
Register setting at 0x0022 is used
0
500 mA
2.0
400 mA
2.7



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