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參數(shù)資料
| 型號： | BQ2060SS |
| 英文描述： | Silicon Bridge Rectifiers |
| 中文描述： | 集成電路表面貼裝，棉絮電荷監(jiān)視器 |
| 文件頁數(shù)： | 13/46頁 |
| 文件大?。?/td> | 364K |
| 代理商： | BQ2060SS |
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the V
threshold, the bq2060 sets the CVOV bit in Pack
Status and pulls the CFC pin to a logiclow.
Low-Power Storage Mode
The bq2060 enters low-power mode 5– 8s after receiving
the Enable Low-Power command. In this mode the
bq2060 consumes less than 10
μ
A. A rising edge on
SMBC, SMBD, or HDQ16 restores the bq2060 to the full
operating mode. The bq2060 does not perform any gas
gauge functions during low-powerstorage mode.
Device Reset
The bq2060 can be reset with commands over the
HDQ16 or SMBus. Upon reset, the bq2060 initializes its
internal registers with the information contained in the
configuration EEPROM. The following command se-
quence initiates a full bq2060 reset:
Write 0x4fto 0xff5a
Write 0x7d to 0x0000
Write 0x7d to 0x0080
Communication
The bq2060 includes two types of communication ports:
SMBus and HDQ16. The SMBus interface is a 2-wire
bidirectional protocol using the SMBC (clock) and SMBD
(data) pins. The HDQ16 interface is a 1-wire
bidirectional protocol using the HDQ16 pin. All three
communication lines are isolated from V
CC
and may be
pulled-up higher than V
CC
. Also, the bq2060 will not
pull these lines low if V
CC
to the part is zero . HDQ16
should be pulled downwith a 100K
resistor ifnot used.
The communication ports allow a host controller, an
SMBus compatible device, or other processor to access
the memory registers of the bq2060. In this way a sys-
tem can efficiently monitor and manage the battery.
SMBus
The SMBus interface is a command-based protocol. A
processor acting as the bus master initiates communica-
tion to the bq2060 by generating a START condition. A
START condition consists of a high-to-low transition of
the SMBD line while the SMBC is high. The processor
then sends the bq2060 device address of 0001011 (bits
7–1) plus a R/W bit (bit 0) followed by an SMBus com-
mand code. The R/W bit (LSB) and the command code
instruct the bq2060 to either store the forthcoming data
to a register specified by the SMBus command code or
output the data from the specified register. The proces-
sor completes the access with a STOP condition. ASTOP
condition consists of a low-to-high transition of the
SMBD line while the SMBC is high. With SMBus, the
most-significant bit (MSB) of a data byte is transmitted
first.
In some instances, the bq2060 acts as the bus master.
This occurs when the bq2060 broadcasts charging re-
quirements and alarm conditions to device addresses
0x12 (SBS Smart Charger) and 0x10 (SBS Host Control-
ler.)
SMBus Protocol
The bq2060 supports the followingSMBus protocols:
Read Word
Write Word
Read Block
Aprocessor acting as the bus master uses the three pro-
tocols to communicate with the bq2060. The bq2060 act-
ing as the bus master uses the Write Word protocol.
The SMBD and SMBC pins are open drain and require
external pullup resistors.
SMBus Packet Error Checking
The bq2060 supports Packet Error Checking as a mech-
anism to confirm proper communication between it and
another SMBus device. Packet Error Checking requires
that both the transmitter and receiver calculate a
Packet Error Code (PEC) for each communication
message. The device that supplies the last byte in the
communication message appends the PEC to the mes-
sage. The receiver compares the transmitted PEC to its
PEC result to determine if there is a communication
error.
PEC Protocol
The bq2060 can receive or transmit data with or without
PEC.
Figure 4 shows the communication protocol for
the Read Word, Write Word, and Read Block messages
without PEC. Figure 5 includes PEC.
In the Write Word protocol, the bq2060 receives the PEC
after the last byte of data from the host. If the host does
not support PEC, the last byte of data is followed by a
STOP condition. After receipt of the PEC, the bq2060
compares the value to its calculation. If the PEC is cor-
rect, the bq2060 responds with an ACKNOWLEDGE. If
it is not correct, the bq2060 responds with a NOT AC-
KNOWLEDGEand sets an error code.
In the Read Word and Block Read, the host generates an
ACKNOWLEDGE after the last byte of data sent by the
bq2060. The bq2060 then sends the PEC and the host
acting as a master-receiver generates a NOT AC-
KNOWLEDGEand a STOPcondition.
13
bq2060
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| BQ2060SS-E207-EP | 功能描述:電池管理 Multi-Chem SBS 1.1 Compliant Gas Gauge RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| BQ2060SS-E207-EPG4 | 功能描述:電池管理 Multi-Chem SBS 1.1 Compliant Gas Gauge RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| BQ2060SS-E207TR-EP | 功能描述:電池管理 Multi-Chem SBS 1.1 Compliant Gas Gauge RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| BQ2060SSE207TREPG4 | 功能描述:電池管理 Multi-Chem SBS 1.1 Compliant Gas Gauge RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| BQ2060SS-E411 | 功能描述:電池管理 Multi-Chem SBS 1.1 Compliant Gas Gauge RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
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