Texas Instruments bq2014HEVM-001, Руководство пользователя

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Programming
2-3
DM2014H—bq2014H-Based Circuit Module
Table 2–2. Self-Discharge Programming
Self-Discharge Setting
Pin 6 Chemistry
H Self-discharge disabled
Z NiCd
L NiMH
Note: Select the self-discharge setting that most closely models the battery pack to be used.
2.2.3 Pack Voltage
The DM2014H is preconfigured for pack voltage (number of cells). R2, R6, and
R7 configure this as shown in the schematic and are set as shown in Table 2–3.
Table 2–3. Pack Voltage Programming
EVM Part Number R2 R18 R19
End-of-Discharge
Level 1
End-of-Discharge
Level 2
bq2014HEVM-001 1.2 M
Ω
1.2 M
Ω
100 K 10 V 9.5 V
2.2.4 Programming Hardware Changes
The following procedure changes the configuration of DM2014H to other
(unshaded) options listed in the tables above:
1) Ensure that
the
DM2014H is disconnected from the battery.
2) Determine the resistors required to achieve the high (H), low (L), or float
(Z) states on the program pin inputs.
3) Remove the 200k resistors as necessary.
4) Place required 200k resistors where needed.
5) If required, change the voltage programming resistors as outlined on the
schematic.
6) Reconnect the DM2014H to the battery pack.
The EV2200 and the PC software can confirm the new settings by reading the
PPU and PPD data registers and the Setup screen.