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| 型号： | PS501T-I/SS |
| 厂商： | Microchip Technology |
| 文件页数： | 2/42页 |
| 文件大小： | 0K |
| 描述： | IC BATTERY MANAGER REPROG 28SSOP |
| 标准包装： | 1 |
| 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： | 标准包装 |
| 其它名称： | PS501T-I/SSDKR |
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PS501
1.0
PRODUCT OVERVIEW
An industry standard 2-wire SMBus interface supports
host communication using standard SBData
The PS501 combines a high-performance, low-power
Microchip PIC18 microcontroller core together with
PowerSmart proprietary monitoring/control algorithms
and 3D cell models stored in 16 Kbytes of on-chip
reprogrammable Flash memory.
Analog resources include a 16-bit sigma-delta integrat-
ing A/D and mixed signal circuitry for precision
measurement of battery current, temperature and volt-
age and for direct connection to 4-cell series Lithium
Ion packs. On-chip EEPROM is provided for storage of
user customizable and “learned” battery parameters.
commands and status.
Additional integrated features include a high accuracy
on-chip oscillator and temperature sensor. Twelve gen-
eral purpose pins support charge or safety control or
user programmable digital I/O. Eight of them can be
used as LED drivers and two are open drain for direct
FET drive.
The PS501 can be configured to accommodate all
Lithium rechargeable battery chemistries, including
Li Ion graphite, Li Ion hard carbon and Li Ion polymer,
with direct connection to 2 to 4 series cell configurations.
FIGURE 1-1:
PS501 INTERNAL BLOCK DIAGRAM
Digital Section
V DDD
V DDA
256-byte
EEPROM
16-Kbyte
FLASH
Regulator
Voltage
Reference
and
Tem perature
Sensor
256-byte
EEPROM
16-Kbyte
FLASH
Regulator
Voltage
Reference
and
Temperature
Sensor
V REFT
SMBus
Interface
PIC18
M M icrocontroller
Core
16-Bit
Sigm a-Delta
Integrating
A/D Converter
Analog
Input Mux
SMB-CLK
SMB-DTA
SMBus
Interface
PIC18
icrocontroller
Core
16-Bit
Sigm a-Delta
Integrating
A/D Converter
Analog
Input Mux
3
VC(1)
VC(2-4)
RSHP
RSHN
Programmable
Digital
Input/Output
Silicon Oscillator
GPIO (11-0)
12
Programmable
Digital
Input/Output
Silicon Oscillator
V NTC
Analog
Section
DS21818C-page 2
V SSD
R OSC
V SSA
? 2004 Microchip Technology Inc.
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