ltc4006egn-6-trpbf Linear Technology Corporation, ltc4006egn-6-trpbf Datasheet - Page 10

• Manufacturer Part Number: ltc4006egn-6-trpbf
• Description: 4a, High Efficiency, Standalone Li-ion Battery Charger
• Manufacturer: Linear Technology Corporation

LTC4006
OPERATIO
Table 2. Truth Table for LTC4006 Operation (Supplemental)
Note 1: If a depleted battery is inserted while the charger is in this state,
the charger must be reset to initiate charging.
Note 2: See section on “Adapter Limiting”.
Note 3: The information contained in this table is supplemental to the
LTC4006 data sheet and has not been production qualified.
Note 4: Blank fields indicate no change, not considered, or other states
impact value.
*Open Drain. High when used with pull-up resistor.
** Most probable condition.
10
NUMBER
10
11
12
13
14
15
16
17
18
19
20
21
22
1
2
3
4
5
6
7
8
9
CONDITION,
CONDITION
CONDITION
CONDITION
CONDITION
CONDITION
CONDITION
CONDITION
CHARGE
CHARGE
CHARGE
CHARGE
CHARGE
CHARGE
CHARGE
CHARGE
CHARGE
CHARGE
CHARGE
FROM
STATE
MSD
Any
SD,
SD
SD
CONDITION
CONDITION
CONDITION
CONDITION
CHARGE
CHARGE
CHARGE
CHARGE
CHARGE
CHARGE
CHARGE
STATE
MSD
TO
SD
SD
SD
SD
SD
SD
SD
SD
SD
SD
U
MODE
Shut Down by Low Adapter Voltage
Charge Shutdown
Shut Down by Undervoltage Lockout
Start Conditioning a Depleted Battery
Input Current Limited Condition Charging
Conditioning a Depleted Battery
Timer Defeated. (Low-Battery Conditioning Still
Functional)
Shut Down by ACP/SHDN Pin
Start Normal Charging
Timer Defeated. (Low-Battery Conditioning Still
Functional)
Restart
Top-Off Charging
C/10 Latch is SET when Battery Current is Less
Than 10% of Programmed Current
Top-Off Charging
Input Current Limited Charging
Charger Paused Due to Thermistor Out of Range
Shut Down by ACP/SHDN Pin
Terminated by Low-Battery Fault (Note 1)
Terminates After 1/4 T
Terminates After T
Charger Paused Due to Thermistor Out of Range
Timeout in CONDITION Mode
<UVL
DCIN
<BAT
>BAT
>BAT
>BAT
>BAT
>BAT
>BAT
>BAT
>BAT
>BAT
>BAT
>BAT
>BAT
>BAT
>BAT
>BAT
>BAT
>BAT
>BAT
>BAT
>BAT
>BAT
and
2.5V ≤ V
<2.5V/Cell
<2.5V/Cell
<2.5V/Cell
<2.5V/Cell
<2.5V/Cell
<2.5V/Cell
>2.5V/Cell
>2.5V/Cell
>3.9V/Cell
>2.5V/Cell
>3.9V/Cell
>2.5V/Cell
>2.5V/Cell
>2.5V/Cell
<2.5V/Cell
VOLTAGE
<2.5V/Cell
V
(V/Cell)
V
FLOAT
BAT
FLOAT
BAT
**
≤ 3.9V
PRESENT C/10
LATCH
0
1
1
0
LTC4006: State Diagram (Supplemental)
NEXT C/10
LATCH
0
0
0
0
1
0
0
13
<10% Programmed
10% Programmed
10% Programmed
10% Programmed
Current (Note 2)
Current (Note 2)
<Programmed
5,
6,
Programmed
Programmed
Programmed
Programmed
Programmed
Programmed
7
CURRENT
MAX BAT
Current
Current
Current
Current
Current
Current
Current
Current
Current
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
12, 14, 15, 16, 17
SHUTDOWN
SHUTDOWN
CONDITION
MASTER
CHARGE
2
4
11
Forced LOW
Forced LOW
ACP/SHDN
9, 10
3, 8,
LOW
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
4006 F15
1
ANY
3, 18, 19,
20, 21, 22
>T/4 then Reset
>T/4 then Reset
>T/4 then Reset
Running
Running
Running
Running
Running
Ignored
Ignored
Paused
Paused
TIMER
STATE
Reset
Reset
Reset
Reset
Reset
Reset
Reset
>T/4
LOW or 25µA
Forced LOW
Forced LOW
(Faulted)
(Faulted)
(Faulted)
(Faulted)
HIGH**
CHG*
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
LOW
LOW
LOW
LOW
LOW
25µA
25µA
4006fa