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參數(shù)資料
| 型號： | LTC4010EFE |
| 廠商： | Linear Integrated Systems |
| 英文描述： | High Efficiency Standalone Nickel Battery Charger |
| 中文描述： | 高效率的獨立鎳電池充電器 |
| 文件頁數(shù)： | 8/20頁 |
| 文件大?。?/td> | 205K |
| 代理商： | LTC4010EFE |
8
LTC4010
4010p
Figure 1. LTC4010 State Diagram
CHARGE
QUALIFICATION
SHUTDOWN
DC ADAPTER PRESENT
NiCd OR
NiMH –
V
V
CELL
< 1.325V
*t
MAX
IS PROGRAMMED MAXIMUM FAST CHARGE DURATION
**OPTIONAL TEMPERATURE LIMITS APPLY
4010 F01
V
CELL
< 900mV
V
CELL
> 900mV
V
CELL
> 900mV
V
CELL
< 900mV
V
< 1.22V
AT t
MAX
*/12
OR TIME = t
MAX
V
> 350mV, ADEQUATE V
CC
,
CHARGER ENABLED AND
TEMPERATURE OK (OPTIONAL)
CHECK
BATTERY
PRECHARGE**
(C/5 FOR
t
MAX
/12)
FAST CHARGE**
(1C)
AUTOMATIC
RECHARGE
FAULT
V
> 1.95V
OR PWM FAULTS
TOP-OFF
CHARGE**
(C/10)
NiMH
T/
t
NO DC ADAPTER
t
MAX
/3
NO BATTERY
OR
V
CC
< 4.25V
Shutdown State
The LTC4010 remains in micropower shutdown until V
CC
(Pin 15) is driven above BAT (Pin 10). In shutdown all
status and PWM outputs and internally generated supply
voltages are inactive. Current consumption from V
CC
and
BAT is reduced to a very low level.
Charge Qualification State
Once V
CC
is greater than BAT, the LTC4010 exits mi-
cropower shutdown, enables its own internal supplies and
switches V
CDIV
to GND to allow measurement of the
average single-cell voltage. The IC also verifies that V
CC
is
at or above 4.25V, V
CC
is 500mV above BAT and V
CELL
is
between 350mV and 1.95V. If V
CELL
is above 1.95V, the
fault state is entered, which is described in more detail
below. Once adequate voltage conditions exist for charg-
ing, READY is asserted.
If the voltage between V
TEMP
and GND is below 200mV,
the LTC4010 is paused. If V
TEMP
is above 200mV but
below 2.85V, the LTC4010 verifies that the sensed
temperature is between 5
°
C and 45
°
C. If these tempera-
ture limits are not met or if its own die temperature is too
high, the LTC4010 will indicate a fault and not allow
charging to begin. If V
TEMP
is greater than 2.85V, battery
temperature related charge qualification, monitoring and
termination are disabled.
Once charging is fully qualified, precharge begins (unless
the LTC4010 is paused). In that case, the V
TEMP
pin is
monitored for further control. The charge status indicators
and PWM outputs remain inactive until charging begins.
Charge Monitoring
The LTC4010 continues to monitor important voltage and
temperature parameters during all charging states. If V
CC
drops to the BAT voltage or lower, charging stops and the
shutdown state is entered. If V
CC
drops below 4.25V or
V
CELL
drops below 350mV, charging stops and the LTC4010
returns to the charge qualification state. If V
CELL
exceeds
1.95V, charging stops and the IC enters the fault state. If
an external thermistor indicates sensed temperature is
OPERATIOU
(Refer to Figure 1)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4011 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Efficiency Standalone Nickel Battery Charger |
| LTC4011_1 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Efficiency Standalone Nickel Battery Charger |
| LTC4011CFE | 功能描述:IC BATT CHARGER HIEFF 20TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 功能:電池監(jiān)控器 電池化學(xué):堿性，鋰離子，鎳鎘，鎳金屬氫化物 電源電壓:1 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-6 包裝:帶卷 (TR) |
| LTC4011CFE#PBF | 功能描述:IC BATT CHARGER HIEFF 20TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 其它有關(guān)文件:STC3100 View All Specifications 特色產(chǎn)品:STC3100 - Battery Monitor IC 標(biāo)準(zhǔn)包裝:4,000 系列:- 功能:燃料，電量檢測計/監(jiān)控器 電池化學(xué):鋰離子（Li-Ion） 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-MiniSO 包裝:帶卷 (TR) 其它名稱:497-10526-2 |
| LTC4011CFE#TR | 功能描述:IC BATT CHARGER HIEFF 20TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 功能:電池監(jiān)控器 電池化學(xué):堿性，鋰離子，鎳鎘，鎳金屬氫化物 電源電壓:1 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-6 包裝:帶卷 (TR) |
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