电池管理 - Parts List



		概述
		产品线
		推荐元件
		应用笔记
		新品发布
		设计指南

Maxim > 方案 > 电池管理

电量计：1节Li+电池组(电池电压< 4.4V)

数据资料

显示

标题/型号

关键优势

QV PDF

独立式单节电池电量计IC，带有Li+电池保护和SHA-1认证
DS2784

业内首款完备的电量计方案，集成了1节Li+电池保护电路和SHA-1认证系统

QV PDF

低成本、2线电池监视器，提供比例A/D输入
DS2746

2线接口电量计，带有电池电流和电压检测以及比例电压输入，可用于采集温度调节器、电池组ID或其它电压源信号

QV PDF

高精度电池电量计，具有可编程挂起模式
DS2756

集成精密的低功耗温度、电压、电流和电流累计测量, 以及非易失(NV)数据存储功能，提供精确估算电池剩余电量所需的关键硬件电路

QV PDF

低成本I²C电池监视器
DS2745

低成本电池电量计，用于监视电流、电压与温度

QV PDF

独立式电量计IC
DS2782

2线单机电量计IC，用于计算剩余电量，简化软件开发

QV PDF

高精度、Li+电池监视器，带有2线接口
DS2764

2线电池监视器，集成了单节电池保护电路

QV PDF

独立式电量计IC
DS2780

单机电量计IC用于计量电池剩余电量，简化软件开发

QV PDF

UCSP封装、1.8V、纳安级功耗、超摆幅比较器，带或不带基准
MAX9025, MAX9026, MAX9027, MAX9028

QV PDF

高精度、Li+电池监视器，带报警输出
DS2762

1-Wire电池监视器，集成了单节电池保护电路，并在电流或温度超出用户定义的门限时发出报警信号

QV PDF

高精度库仑计
DS2740

精密的电池电量计，价格低于$1.00，非常适合手持产品

Key Specifications: Battery Protectors, Selectors and Monitors

Part Number

Functions

Battery Type

Interface

User Data Storage (bytes)

Parameters Measured

Battery Protection

Supply Voltage (min) (V)

Supply Voltage (max) (V)

Features

Package

Smallest Available Package (max w/pins) (mm²)

Operating Temp. Range (°C)

DS2784

•	Fuel Gauge

•

Protector

1 Cell Li-Ion

1-Wire

16 EEPROM

Current
Temperature
Time
Voltage

Over Voltage
Over-Current
Over-Temperature
Over/Under Voltage

2.5

4.6

•	Digital Current Accumulation

•	Internal MOSFET Drivers

•	On-chip Remaining Capacity Algorithms

•

Unique ID

TDFN/14

-40 to +85

DS2746

•	Fuel Gauge

1 Cell Li-Ion
3-Cell NiMH

2-Wire

Current
Voltage

2.5

5.5

•	Digital Current Accumulation

•	Ratiometric Voltage Inputs

TDFN/10

-40 to +85

DS2756

•	Fuel Gauge

1 Cell Li-Ion
3-Cell NiMH

1-Wire

8 SRAM
96 EEPROM

Current
Temperature
Voltage

5.5

•	Digital Current Accumulation

•	One-Shot Mode

•	Suspend Mode

•

Unique ID

TSSOP/8

-40 to +85

DS2745

•	Fuel Gauge

1 Cell Li-Ion
3-Cell NiMH

2-Wire

Current
Temperature
Voltage

2.5

5.5

•	Digital Current Accumulation

uSOP/8

-40 to +85

DS2782

•	Fuel Gauge

1/2 Cell Li-Ion

2-Wire

40 EEPROM

Current
Temperature
Voltage

2.5

5.5

•	Digital Current Accumulation

•	On-chip Remaining Capacity Algorithms

•

Unique ID

TDFN/10
TSSOP/8

-40 to +85

DS2764

•	Fuel Gauge

•

Protector

1 Cell Li-Ion

2-Wire

40 EEPROM

Current
Temperature
Voltage

Over-Current
Over/Under Voltage

2.5

5.5

•	Digital Current Accumulation

•	External MOSFET Drivers

TSSOP/16

-40 to +85

DS2780

•	Fuel Gauge

1/2 Cell Li-Ion

1-Wire

40 EEPROM

Current
Temperature
Voltage

2.5

5.5

•	Digital Current Accumulation

•	On-chip Remaining Capacity Algorithms

•

Unique ID

TDFN/10
TSSOP/8

-40 to +85

DS2762

•	Fuel Gauge

•

Protector

•	Status Monitor

1 Cell Li-Ion

1-Wire

16 SRAM
32 EEPROM

Current
Temperature
Voltage

Over-Current
Over/Under Voltage

2.5

5.5

•	Accumulated Current & Temperature Alerts

•	Digital Current Accumulation

•	External MOSFET Drivers

•

Unique ID

FCHIP/12
TSSOP/16

-40 to +85

DS2740

•	Fuel Gauge

1 Cell Li-Ion
3-Cell NiMH

1-Wire

Current

2.7

5.5

•	Digital Current Accumulation

•

Unique ID

uSOP/8

-40 to +85

See All Battery Protectors, Selectors and Monitors (21)

Key Specifications: Comparators

Part Number

Number per Pkg.

Typ Prop. Delay (ns)

Input CMVR to Neg. Rail

Min. Total Supply (V)

Max. Total Supply (V)

Max. Supply Current per Comp. (µA)

Typ V_OS (mV)

Logic Output

Latched Outputs

Complementary Outputs

Package

Smallest Available Package (max w/pins) (mm²)

Operating Temp. Range (°C)

MAX9027

14000

Yes

1.8

5.5

0.3

CMOS

UCSP/6

-40 to +85

MAX9028

14000

Yes

1.8

5.5

0.3

Open Drain

UCSP/6

-40 to +85

See All Comparators (83)

Key Specifications: Comparators + Reference

Part Number

Comps. per Pkg.

Threshold (V)

Number of Inputs / Thresholds (V)

Threshold Accuracy (%)

Internal Reference Accuracy (%)

Typ Prop. Delay (µs)

Supply Voltage (min) (V)

Supply Voltage (max) (V)

Max. Total Supply Current (µA)

Comp. Inputs Available

Prog. Hyst.

Typ V_OS (mV)

V_OS (max) (mV)

Logic Output

Package

Smallest Available Package (max w/pins) (mm²)

Operating Temp. Range (°C)

MAX9025

1.236

1 / 1.236

1.8

5.5

1.7

1 Inv. + 1 Noninv.

0.3

Push-Pull

UCSP/6

-40 to +85

MAX9026

1.236

1 / 1.236

1.8

5.5

1.7

1 Inv. + 1 Noninv.

0.3

Open Drain

UCSP/6

-40 to +85

See All Comparators + Reference (42)