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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)： | 5/24頁 |
| 文件大?。?/td> | 212K |
| 代理商： | LTC4010CFE#TRPBF |
13
LTC4010
4010fa
Status Outputs
The LTC4010 open-drain status outputs provide valuable
information about the IC’s operating state and can be
used for a variety of purposes in applications. Table 1
summarizes the state of the three status outputs and the
VCDIV pin as a function of LTC4010 operation. The status
outputs can directly drive current-limited LEDs termi-
nated to the DC input. The VCDIV column in Table 1 is
strictly informational. VCDIV should only be used to termi-
nate the VCELL resistor divider, as previously discussed.
OPERATIO
U
PWM Current Source Controller
An integral part of the LTC4010 is the PWM current source
controller. The charger uses a synchronous step-down
architecture to produce high efficiency and limited thermal
dissipation. The nominal operating frequency of 550kHz
allows use of a smaller external inductor. The TGATE and
BGATE outputs have internally clamped voltage swings.
They source peak currents tailored to smaller surface-
mount power FETs likely to appear in applications provid-
ing an average charge current of 3A or less. During the
various charging states, the LTC4010 uses the PWM
controller to regulate an average voltage between SENSE
and BAT that ranges from 10mV to 100mV.
A conceptual diagram of the LTC4010 PWM control loop
is shown in Figure 2.
The voltage across the external current programming
resistor RSENSE is averaged by integrating error amplifier
EA. An internal programming current is also pulled from
input resistor R1. The IPROG R1 product establishes the
desired average voltage drop across RSENSE, and hence,
the average current through RSENSE. The ITH output of the
OPERATIO
U
(Refer to Figure 1)
Table 1. LTC4010 Status Pins
READY
FAULT
CHRG
VCDIV
CHARGER STATE
Off
On
Off
On
Ready to Charge
(VTEMP Held Low)
or Automatic Recharge
On
Off
On
Precharge, Fast or Top Off
Charge (May be Paused)
On
On or Off
On
Temperature Limits
Exceeded
Off
On
Off
On
Fault State (Latched)
Figure 2. LTC4010 PWM Control Loop
10
–
+
CC
EA
ITH
IPROG
R3
Q
PWM CLOCK
S
R
R4
R1
BAT
9
SENSE
RSENSE
12
BGATE
14
TGATE
LTC4010
VCC
R2
4010 F02
相關(guān)PDF資料 |
PDF描述 |
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| 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)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 功能:電池監(jiān)控器 電池化學: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 供應商設備封裝: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 標準包裝:4,000 系列:- 功能:燃料，電量檢測計/監(jiān)控器 電池化學: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） 供應商設備封裝:8-MiniSO 包裝:帶卷 (TR) 其它名稱:497-10526-2 |
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