- 您现在的位置：买卖IC网 > PDF目录98003 > LTC3559EUD (LINEAR TECHNOLOGY CORP) 1.05 A BATTERY CHARGE CONTROLLER, 2590 kHz SWITCHING FREQ-MAX, PQCC16 PDF资料下载
参数资料
| 型号： | LTC3559EUD |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 1.05 A BATTERY CHARGE CONTROLLER, 2590 kHz SWITCHING FREQ-MAX, PQCC16 |
| 封装： | 3 X 3 MM, PLASTIC, MO-220WEED-2, QFN-16 |
| 文件页数： | 3/24页 |
| 文件大小： | 302K |
| 代理商： | LTC3559EUD |
LTC3559
11
3559f
OPERATION
The LTC3559 is a linear battery charger with dual monolithic
synchronous buck regulators. The buck regulators are
internally compensated and need no external compensa-
tion components.
The battery charger employs a constant- current constant-
voltage charging algorithm and is capable of charging a
single Li-Ion battery at charging currents up to 950mA. The
user can program the maximum charging current available
at the BAT pin via a single PROG resistor. The actual BAT
pin current is set by the status of the HPWR pin.
For proper operation, the BAT and PVIN pins must be tied
together. If a buck regulator is also enabled during the
battery charging operation, the net current charging the
battery may be lower than the actual programmed value.
Refer to Figure 1 for an explanation.
Figure 1. Current Being Delivered at the BAT Pin is 500mA. Both Buck Regulators are Enabled. The Sum of the
Average Input Currents Drawn by Both Buck Regulators is 200mA. This Makes the Effective Battery Charging Current
only 300mA. If the HPWR Pin Were Tied LO, the BAT Pin Current Would be 100mA.With the Buck Regulator
Conditions Unchanged, this Would Cause the Battery to Discharge at 100mA
VCC
PROG
RPROG
1.62k
SUSP
HPWR
EN1
2.2
mF
500mA
LTC3559
EN2
MODE
HIGH
LOW (PULSE SKIP MODE)
BAT
USB (5V)
PVIN
SW1
VOUT1
SINGLE Li-lon
CELL 3.6V
SW2
VOUT2
200mA
300mA
3559 F01
+
APPLICATIONS INFORMATION
Battery Charger Introduction
The LTC3559 has a linear battery charger designed to
charge single-cell lithium-ion batteries. The charger uses
a constant current/constant voltage charge algorithm
with a charge current programmable up to 950mA. Ad-
ditional features include automatic recharge, an internal
termination timer, low-battery trickle charge conditioning,
bad-battery detection, and a thermistor sensor input for
out of temperature charge pausing.
Futhermore, the battery charger is capable of operating
from a USB power source. In this application, charge
current can be programmed to a maximum of 100mA or
500mA per USB power specications.
Input Current vs Charge Current
The battery charger regulates the total current delivered
to the BAT pin; this is the charge current. To calculate the
total input current (i.e., the total current drawn from the
VCC pin), it is necessary to sum the battery charge current,
charger quiescent current and PROG pin current.
Undervoltage Lockout (UVLO)
The undervoltage lockout circuit monitors the input volt-
age (VCC) and disables the battery charger until VCC rises
above VUVLO (typically 4V). 200mV of hysteresis prevents
oscillations around the trip point. In addition, a differential
undervoltage lockout circuit disables the battery charger
when VCC falls to within VDUVLO (typically 50mV) of the
BAT voltage.
相关PDF资料 |
PDF描述 |
|---|---|
| LTC3586EUFE#PBF | 3 A BATTERY CHARGE CONTROLLER, 2700 kHz SWITCHING FREQ-MAX, PQCC38 |
| LTC3586EUFE-1#PBF | BATTERY CHARGE CONTROLLER, PQCC38 |
| LTC3586EUFE-1#TRPBF | BATTERY CHARGE CONTROLLER, PQCC38 |
| LTC3672BEDC-1#PBF | 1.1 A SWITCHING REGULATOR, 2700 kHz SWITCHING FREQ-MAX, PDSO8 |
| LTC3728LZEUH | 3 A DUAL SWITCHING CONTROLLER, 590 kHz SWITCHING FREQ-MAX, PQCC28 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3559EUD#PBF | 功能描述:IC USB CHARGER 16-QFN 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 |
| LTC3559EUD#PBF | 制造商:Linear Technology 功能描述:IC BATT CHARGER W/BUCK REG 16QFN 制造商:Linear Technology 功能描述:IC, BATT CHARGER, W/BUCK REG, 16QFN |
| LTC3559EUD#TRPBF | 功能描述:IC USB CHARGER 16-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
| LTC3559EUD-1#PBF | 功能描述:IC USB BATTERY CHARGER 16-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
| LTC3559EUD-1#TRPBF | 功能描述:IC USB BATTERY CHARGER 16-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
发布紧急采购，3分钟左右您将得到回复。