Lines Matching +full:precharge +full:- +full:current +full:- +full:microamp
1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
11 - Markus Laine <markus.laine@fi.rohmeurope.com>
12 - Mikko Mutanen <mikko.mutanen@fi.rohmeurope.com>
15 The ROHM BD99954 is a Battery Management LSI for 1-4 cell Lithium-Ion
16 secondary battery intended to be used in space-constraint equipment such
18 provides a Dual-source Battery Charger, two port BC1.2 detection and a
28 # Curve (1) represents charging current.
32 # a) Trickle-charge with constant current (8).
33 # b) pre-charge with constant current (6)
34 # c) fast-charge with:
35 # First a constant current (5) phase (CC)
37 # target level - until charging current has dropped to termination
43 # (4)- -.- - - - - - - - - - - - - - +++++++++++++++++++++++++++.
45 # . ++++++/++ - - - - - - - - - - - - -.- - (5)
47 # . + - -- .
48 # . + - + .
49 # . +.- -: .
51 # . .- + | `/ .
53 # . -" + -- .
54 # . (2) ..." + | :- .
55 # . ..."" + -: .
56 # (3)- -.-.""- - - - -+++++++++ - - - - - - -.:- - - - - - - - - .- - (6)
58 # . + | -: .
59 # . + -: .
61 # . (1) + | "+++- - - -.- - (7)
62 # -++++++++++++++- - - - - - - - - - - - - - - - - + - - - .- - (8)
63 # . + -
64 # -------------------------------------------------+++++++++-->
66 # | --trickle-- | -pre- | ---------fast----------- |
69 # - trickle-charge-current-microamp:
70 # Current used at trickle-charge phase (8 in above chart)
74 # - precharge-current-microamp:
75 # Current used at pre-charge phase (6 in above chart)
79 # - constant-charge-current-max-microamp
80 # Current used at fast charge constant current phase (5 in above chart)
84 # - constant-charge-voltage-max-microvolt
89 # - precharge-upper-limit-microvolt
90 # charging mode is changed from trickle charging to pre-charging
95 # - re-charge-voltage-microvolt
99 # re-charging is automatically started when battry has been discharging
101 # - over-voltage-threshold-microvolt
103 # Charger will then enter to a "battery faulty" -state
107 # - charge-term-current-microamp
112 # threshold, and the current is below this setting (7 in above chart)
121 monitored-battery:
125 rohm,vsys-regulation-microvolt:
131 rohm,vbus-input-current-limit-microamp:
132 description: system specific VBUS input current limit (in microamps).
137 rohm,vcc-input-current-limit-microamp:
138 description: system specific VCC/VACP input current limit (in microamps).
144 - compatible
149 - |
151 #address-cells = <1>;
152 #size-cells = <0>;
155 monitored-battery = <&battery>;
157 interrupt-parent = <&gpio1>;
159 rohm,vsys-regulation-microvolt = <8960000>;
160 rohm,vbus-input-current-limit-microamp = <1472000>;
161 rohm,vcc-input-current-limit-microamp = <1472000>;