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| 型号： | PS501-I/SS |
| 厂商： | Microchip Technology |
| 文件页数： | 3/42页 |
| 文件大小： | 0K |
| 描述： | IC FIELD REPROG BATT MGR 28SSOP |
| 标准包装： | 47 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion）、锂聚合物（Li-Pol） |
| 电源电压： | 5.6 V ~ 18 V |
| 工作温度： | -20°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 管件 |
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PS501
1.1
Architectural Description
1.5
SMBus Interface/SBData
The PS501 is a a fully field reprogrammable single chip
solution for rechargeable battery management.
major architectural elements described below.
Commands
Communication with the host is fully compliant with the
industry standard Smart Battery System (SBS)
specification. Included is an advanced SMBus commu-
nications engine that is compliant with the SMBus v1.1
1.2
Microcontroller/Memory
protocols. The integrated firmware processes all the
The PS501 incorporates an advanced, low-power
revised Smart Battery Data (SBData) v1.1 values.
Microchip PIC18 8-bit RISC microcontroller core. Mem-
ory resources include 16 Kbytes of reprogrammable
1.6
Accurate Integrated Time Base
Flash memory for program/data storage and 256 bytes
of EEPROM for parameter storage. Both memory
arrays may be reprogrammed through the SMBus
interface.
The PS501 integrates a highly accurate silicon oscilla-
tor that provides accurate timing for self-discharge and
capacity calculations and eliminates the need for an
external crystal.
1.3
A/D Converter
1.7
Temperature Sensing
The PS501 performs precise measurements of current,
voltage and temperature, using a highly accurate 16-bit
integrating sigma-delta A/D converter. The A/D can be
calibrated to eliminate gain and offset errors and incor-
porates an auto-zero offset correction feature that can
be performed while in the end system application.
An integrated temperature sensor is provided to
minimize component count when the PS501 IC is
located in close physical proximity to the battery cells
being monitored. As an option, a connection is
provided for an external thermistor that can also be
monitored.
1.4
PowerSmart ? Firmware/Battery
1.8
General Purpose I/O
Models
Contained within the 16-Kbyte Flash memory is the
PowerSmart developed battery management firmware
that incorporates proprietary algorithms and sophisti-
cated 3-dimensional cell models. Developed by battery
chemists, the patented, self-learning 3D cell models
contain over 250 parameters and compensate for self-
discharge, temperature and other factors. In addition,
multiple capacity correction and error reducing func-
tions are performed during charge/discharge cycles to
enhance accuracy and improve fuel gauge and charge
control performance. As a result, accurate battery
capacity reporting and run-time predictions with less
than 1% error are achievable.
The reprogrammability of the Flash allows firmware
upgrades and customized versions to be rapidly
created without the need for silicon revisions.
The PS501 can be easily customized for a particular
application’s battery cell chemistry. Standard configura-
tion files are provided by PowerSmart for a wide variety
of popular rechargeable cells and battery pack
configurations.
? 2004 Microchip Technology Inc.
Twelve programmable digital input/output pins are
provided by the PS501. Eight of these pins can be used
as LED outputs to display State-Of-Charge (SOC),
used for direct control of external charge circuitry or to
provide additional levels of safety in Li Ion packs.
Alternatively, they can be used as general purpose
input/outputs. Two of the I/Os are open-drain outputs
and can thus be used to directly drive FETs or other
high-voltage applications.
DS21818C-page 3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PS501T | 功能描述:电池管理 SBS1.1 Fuel Gauge RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| PS501T-I/SS | 功能描述:IC BATTERY MANAGER REPROG 28SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品变化通告:BQ77908, BQ77910 Discontinuation 20/Mar/2012 标准包装:1 系列:- 功能:电池监控器，过压/欠压保护 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:5.6 V ~ 35 V 工作温度:-25°C ~ 85°C 安装类型:表面贴装 封装/外壳:38-TFSOP（0.173"，4.40mm 宽） 供应商设备封装:38-TSSOP 包装:剪切带 (CT) 其它名称:296-28784-1 |
| PS502 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Optoelectronic |
| PS-5020APL05 | 制造商: 功能描述: 制造商:undefined 功能描述: |
| PS5022 | 制造商:PREMO 制造商全称:PREMO CORPORATION S.L 功能描述:SMD Power Inductors Shielded |
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