Texas Instruments BQ24113 Evaluation Module BQ24113EVM BQ24113EVM 데이터 시트
제품 코드
BQ24113EVM
www.ti.com
2.3
Test Procedure
Test Summary
Table 2. I/O and Jumper Connections (Factory Jumper Selections shown in Bold Text)
ASSEMBLY
–001
–002
–003
–004
–005
-006
U1
Device
bq24100
bq24105
(1)
bq24113
(2)
bq24115
(1)
bq24103
(2)
bq24103A
(2)
J1
DC+/DC-:Input
5 to 16
V
REG
+0.8 to 16
(1)
5 to 16
V
REG
+0.8 to 16
(1)
5 to 16
(2)
5 to 16
(2)
voltage range
(V)
(V)
J2
BAT+/BAT-No.
1
1
1
1
1
1
cell in series
Output
4.2
4.2
(1)
4.2
(2)
4.2
(1)
4.2
(2)
4.2
(2)
regulation
voltage (V)
voltage (V)
J5
PG
LED or EXT
LED or EXT
LED or EXT
LED or EXT
LED or EXT
LED or EXT
J6
STAT1
LED or EXT
LED or EXT
LED or EXT
LED or EXT
LED or EXT
LED or EXT
J7
STAT2
LED or EXT
LED or EXT
N/C no jumper
N/C no jumper
LED or EXT
LED or EXT
J8
TTC or CMOD
TTC no jumper
TTC no jumper
CMOD jumper HI
CMOD jumper HI
TTC no jumper
TTC no jumper
J9
CE
CE jumper LO
CE jumper LO
CE jumper LO
CE jumper LO
CE jumper LO
CE jumper LO
J10
Cells or FB
No jumper
No jumper
Cells jumper LO
No jumper
Cells jumper
Cells jumper LO
LO
(1)
R5 and R7 can be changed to regulate output between approximately 3.2 V to 15.5 V. Adjust the input voltage as required.
Output set to operate at 4.2 VDC from the factory.
Output set to operate at 4.2 VDC from the factory.
(2)
To operate as a two cell version (8.4V), replace battery with a two-series cell pack, set J10 to High and adjust the Input voltage
between 9.2 V to 16 V.
between 9.2 V to 16 V.
Set up the evaluation board as described above, by making the necessary I/O connections and jumper
selections.
selections.
WARNING
Prior to test and evaluation, it is important to verify that the EVM
selected is set up correctly for the battery pack to be charged;
several evaluation modules have a CELLs option that can be
programmed for two different size – number of series cells. TI
highly recommends that the battery pack to be charged, has
internal protection as a safety backup.
selected is set up correctly for the battery pack to be charged;
several evaluation modules have a CELLs option that can be
programmed for two different size – number of series cells. TI
highly recommends that the battery pack to be charged, has
internal protection as a safety backup.
1. Apply power to the board with the power supply, preset to the suggested value in
, and use
approximately 1.7 A for the current limit setting.
2. The PG LED and STAT1 should light, if the battery is charging.
3. The bq241xx enters pre-conditioning mode if the battery is below the V
3. The bq241xx enters pre-conditioning mode if the battery is below the V
(LOWV)
threshold. In this mode,
the bq241xx pre-charges the battery with a low current programmed by the ISET2 pin. If the R
SET1
and
R
SET2
resistors are the same value then the precharge is one tenth the fast charge current (I
PRE-CHG
=
1.33 A/10 = 133 mA) until the battery voltage reaches the V
(LOWV)
threshold or until the precharge timer
expires. If the timer expires then the charge current is terminated and the bq241xx enters fault mode.
STAT1 and STAT2 (if available) LEDs go dark when in fault mode.
STAT1 and STAT2 (if available) LEDs go dark when in fault mode.
Note:
There are several non-charging modes that share this status state. Toggling input power or
battery replacement resets fault mode.
battery replacement resets fault mode.
4. Once the battery voltage is above the V
(LOWV)
threshold, the battery enters fast charge mode. This
EVM is programmed for approximately 1.3 A of fast charging current. The PG and STAT1 LEDs should
be on.
be on.
5. Once the battery reaches voltage regulation (4.2 V) the current tapers down as the battery reaches its
full capacity. The PG and STAT1 LEDs should light.
SLUU200A – July 2004 – Revised December 2007
Using the bq241xx (bqSWITCHER™)
7