- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄224115 > LTC4010CFE#TRPBF (LINEAR TECHNOLOGY CORP) High Efficiency Standalone Nickel Battery Charger; Package: TSSOP; No of Pins: 16; Temperature Range: 0°C to +70°C PDF資料下載
參數(shù)資料
| 型號： | LTC4010CFE#TRPBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | High Efficiency Standalone Nickel Battery Charger; Package: TSSOP; No of Pins: 16; Temperature Range: 0°C to +70°C |
| 中文描述： | BATTERY CHARGE CONTROLLER, 615 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 4.40 MM, LEAD FREE, EXPOSED PAD, PLASTIC, TSSOP-16 |
| 文件頁數(shù)： | 3/24頁 |
| 文件大?。?/td> | 212K |
| 代理商： | LTC4010CFE#TRPBF |
11
LTC4010
4010fa
OPERATIO
U
Shutdown State
The LTC4010 remains in micropower shutdown until VCC
(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 VCC and
BAT is reduced to a very low level.
Charge Qualification State
Once VCC is greater than BAT, the LTC4010 exits mi-
cropower shutdown, enables its own internal supplies and
switches VCDIV to GND to allow measurement of the
average single-cell voltage. The IC also verifies that VCC is
at or above 4.2V, VCC is 510mV above BAT and VCELL is
between 350mV and 1.95V. If VCELL 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 VTEMP and GND is below 200mV,
the LTC4010 is paused. If VTEMP 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 VTEMP 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 VTEMP 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 VCC
drops to the BAT voltage or lower, charging stops and the
shutdown state is entered. If VCC drops below 4.25V or
VCELLdropsbelow350mV,chargingstopsandtheLTC4010
(Refer to Figure 1)
returns to the charge qualification state. If VCELL exceeds
1.95V, charging stops and the IC enters the fault state. If
an external thermistor indicates sensed temperature is
beyond a range of 5
°C to 60°C, or the internal die tempera-
ture exceeds a resonable value, charging is suspended,
the charge timer is paused and the LTC4010 indicates a
fault condition. Normal charging resumes from the previ-
ous state when the sensed temperature returns to a satis-
factory range. In addition, other battery faults are detected
during specific charging states as described below.
Precharge State
If the initial voltage on VCELL is below 900mV, the LTC4010
enters the precharge state and enables the PWM current
source to trickle charge using one-fifth the programmed
charge current. The CHRG status output is active during
precharge. The precharge state duration is limited to
tMAX/12 minutes, where tMAX is the maximum fast charge
period programmed with the TIMER pin. If sufficient VCELL
voltage cannot be developed in this length of time, the fault
state is entered, otherwise fast charge begins.
Fast Charge State
If adequate average single-cell voltage exists, the LTC4010
enters the fast charge state and begins charging at the
programmed current set by the external current sense
resistor connected between the SENSE and BAT pins. The
CHRG status output is active during fast charge. If VCELL
is initially above 1.325V, voltage-based termination pro-
cessing begins immediately. Otherwise –
V termination
is disabled for a stabilization period of tMAX/12. In that
case, the LTC4010 makes another fault check at tMAX/12,
requiring the average cell voltage to be above 1.22V. This
ensures the battery pack is accepting a fast charge. If
VCELL is not above this voltage threshold, the fault state is
entered. Fast charge state duration is limited to tMAX and
the fault state is entered if this limit is exceeded.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC4011CFE#PBF | High Efficiency Standalone Nickel Battery Charger; Package: TSSOP; No of Pins: 16; Temperature Range: 0°C to +70°C |
| LTC4011CFE#TRPBF | High Efficiency Standalone Nickel Battery Charger; Package: TSSOP; No of Pins: 16; Temperature Range: 0°C to +70°C |
| LTC4050EMS-4.1#PBF | Lithium-Ion Linear Battery Charger Controller with Thermistor Interface; Package: MSOP; No of Pins: 10; Temperature Range: -40°C to +125°C |
| LTC4050EMS-4.1#TRPBF | Lithium-Ion Linear Battery Charger Controller with Thermistor Interface; Package: MSOP; No of Pins: 10; Temperature Range: -40°C to +125°C |
| LTC4050EMS-4.2#PBF | Lithium-Ion Linear Battery Charger Controller with Thermistor Interface; Package: MSOP; No of Pins: 10; Temperature Range: -40°C to +125°C |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4010EFE | 制造商:LINEAR 制造商全稱:LINEAR 功能描述:High Efficiency Standalone Nickel Battery Charger |
| 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。