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参数资料
| 型号： | LTC4060EDHC#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 10/20页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHARGER NIMH/NICD 16DFN |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电池化学： | 镍镉（NiCd）、镍金属氢化物（NiMH） |
| 电源电压： | 4.5 V ~ 10 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFDFN 裸露焊盘 |
| 供应商设备封装： | 16-DFN（5x3） |
| 包装： | 带卷 (TR) |
LTC4060
OPERATIO
applied to the SHDN pin, shutdown ends and charge quali-
fication is entered.
Charge Qualification
After exiting the sleep or shutdown modes the LTC4060
will check for the presence of a battery and for proper
battery temperature (if a thermistor is used) before initiat-
ing charging.
When V CELL (V BAT /Number of Cells) is below 2.05V (V BR ),
a battery is assumed to be present. Should V CELL rise
above 1.95V (V BOV ) for a time greater than the battery
overvoltage event delay shown in the far right column of
Table 1, then a battery overvoltage condition is detected
and charging stops. Once stopped in this way, qualifica-
tion can be reinitiated after V CELL has fallen below 1.9V
(V BOV – V BOVH ) only by removing and replacing the battery
(or replacing the battery if the overvoltage condition is a
result of battery removal), toggling the SHDN pin low to
high or removing and reapplying power to the charger.
If the NTC pin voltage is above the temperature disable
threshold (V NDIS ), the LTC4060 verifies that the ther-
mistor temperature is between 5 ° C and 45 ° C. Charging
will not initiate until these temperature limits are met.
The LTC4060 continues to qualify important voltage and
temperature parameters during all charging states. If V CC
drops below the undervoltage lockout threshold, sleep
mode is entered.
Table 1. LTC4060 Time Limit Programming Examples
If the internal die temperature becomes excessive, charg-
ing stops and the part enters the shutdown state. Once in
the shutdown state charge qualification can be reinitiated
only when the die temperature drops to normal and then
by removing and replacing the battery or toggling the
SHDN pin low to high or removing and reapplying power
to the charger.
Precharge
The state that is entered when qualified charging begins is
precharge. The CHRG status output is set low and remains
low during both precharge and fast charge. If the voltage
on V CELL is below the 900mV (V FCQ ) fast charge qualifica-
tion voltage, the LTC4060 charges using one-fifth the
maximum programmed charge current. The cell voltage is
continuously checked to determine when the battery is
ready to accept a fast charge. Until this voltage reaches
V FCQ , the LTC4060 remains in precharge.
If an external thermistor indicates that the sensed tem-
perature is beyond a range of 5 ° C to 45 ° C charging is
suspended, the charge timer is paused and the CHRG
status output remains low. Normal charging resumes
from the previous state when the sensed temperature
rises above 5 ° C or falls below 45 ° C.
Fast Charge
When the average cell voltage exceeds V FCQ , the LTC4060
transitions from the precharge to the fast charge state and
TYPICAL
BATTERY
CHARGE
BATTERY AUTOMATIC
FAST
VOLTAGE
TIME
VOLTAGE RECHARGE
UVLO EXIT, BATTERY
FAST
CHARGE
CHARGE
RATE
STABILIZATION
HOLD OFF
LIMIT
(t MAX )
SAMPLING ENTRY
INTERVAL DELAY
INSERTION/REMOVAL/OVERVOLTAGE,
FAST CHARGE ENTRY AND
CURRENT
R PROG
C TIMER
(C)
(MINUTES)
(HOURS)
(SECONDS) (SECONDS)
THERMISTOR EVENT DELAYS (ms)
2A
2A
2A
2A
400mA
400mA
400mA
400mA
698 ?
698 ?
698 ?
698 ?
3480 ?
3480 ?
3480 ?
3480 ?
1nF
1.5nF
1.8nF
2.7nF
180pF
270pF
390pF
560pF
1.5
1
0.75
0.5
1.5
1
0.75
0.5
4.6 to 5.7
6.9 to 8.4
8.4 to 10.3
12.6 to 15.4
4.2 to 5.2
6.3 to 7.7
8.9 to 11
12.6 to 15.4
1.1
1.6
2
3
1
1.5
2.1
3
15
23
28
42
14
21
30
42
15 to 31
23 to 46
28 to 56
42 to 84
14 to 28
21 to 42
30 to 60
42 to 84
175 to 260
260 to 390
320 to 480
480 to 720
160 to 240
240 to 360
340 to 510
480 to 720
4060f
10
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| LTC4060EFE | 制造商:Linear Technology 功能描述:Battery Charger NiCD/NiMH 2000mA -0.3V to 10.3V 16-Pin TSSOP EP |
| LTC4060EFE#PBF | 功能描述:IC BATT CHARGR NIMH/NICD 16TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 其它有关文件:STC3100 View All Specifications 特色产品:STC3100 - Battery Monitor IC 标准包装:4,000 系列:- 功能:燃料，电量检测计/监控器 电池化学:锂离子（Li-Ion） 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-MiniSO 包装:带卷 (TR) 其它名称:497-10526-2 |
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