Datasheet > SS6781ACNTB

SS6781ACNTB

更新时间： 2024-01-16 14:21:20

品牌	Logo	应用领域
SSC		电池控制器
页数	文件大小	规格书
18页	800K
描述
Battery Charger Controller

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中文翻译

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数据手册

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SS6781ACNTB 数据手册

SS6781A(G)

Battery Charger Controller

FEATURES

DESCRIPTION

Fast charge control of NiMH/NiCd batteries, even

with a fluctuating charging current.

Fast charge termination by: ∆T/∆t, -∆V, 0∆V,

safety timer, maximum temperature or maximum

voltage.

The SS6781A fast charger controller IC is designed

for intelligent charging of NiMH or NiCd batteries

without the risk of overcharge.

Using -∆V detection (-0.25%), 0∆V detection

(peak voltage timer) and ∆T/∆t detection are the

primary methods employed by the SS6781A to

terminate fast charge. The fast charge can also be

cut off by maximum battery voltage and maximum

battery temperature detection, along with the

safety timer to prevent charging under fault

conditions of the charging system or the battery

itself.

Linearly adjustable ∆T/∆t detection slope and

safety timer.

Adjustable peak voltage timer for 0∆V

Battery voltage protection range selectable.

Selectable battery temperature protection mode

Protection against battery voltage and battery

temperature faults

Selectable LED display mode for battery status.

Five pulsed trickle charge modes

Both ∆T/∆t and -∆V detection methods have

been proved powerful in terminating fast charging

for NiMH and NiCd batteries. The SS6781A

utilizes the combination of these two methods to

reliably determine when to end fast charge and

prevent mistakes caused by using -∆V detection

alone under certain conditions. Fig. 1 shows an

example of a charging curve for a battery charged

by a fluctuating current from a NiMH battery charger,

which uses the SS6781A controller IC to achieve

optimal charging. This technique, in conjunction

Discharge-before-charge function available for

eliminating memory effect.

Quick and easy testing for production

Packaged in SO-16 or PDIP-16

This device is available with Pb-free lead finish.

APPLICATIONS

Fast Battery Chargers for:

Mobile Phones.

Notebook and Laptop Personal Computers.

Portable Power Tools and Toys.

Portable Communication Equipment.

Portable Video and Stereo Equipment.

100

dete

ction (peak voltage timer), is

with the 0∆V

particularly suitable for NiMH batteries, whose

voltage drop is hardly significant yet temperature

Charge Current = 600 mA

Cell Capacity = 550 mA

NiMH Battery

rises rapidly. The ∆T/∆t

-∆V detection

1.45

circuitry may be disabled independently for

different applications, such as system-integrated

chargers, chargers with varying charge current, or

battery packs which lack a temperature sensing

thermistor.

Cell Voltage

1.35

1.25

Temperature

1.15

The safety timer period, battery temperature pro-

tection mode, battery voltage protection range,

pulsed trickle charge duty, and LED display mode

are all adjustable or selectable.

Charge Time (min.)

Fig. 1 Battery Charging Characteristics Resulting from

a SS6781A-Controlled Charger with a

Fluctuating Charging Current

1/11/2005 Rev.2.10

www.SiliconStandard.com

1 of 18

12 3 4 5 6 7...18

中文翻译

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与SS6781ACNTB相关器件

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SS6781ACNTR	SSC	获取价格	Battery Charger Controller
SS6781ACSTB	SSC	获取价格	Battery Charger Controller
SS6781ACSTR	SSC	获取价格	Battery Charger Controller
SS6781AG	SSC	获取价格	Battery Charger Controller
SS6781AGNTB	SSC	获取价格	Battery Charger Controller
SS6781AGNTR	SSC	获取价格	Battery Charger Controller
SS6781AGSTB	SSC	获取价格	Battery Charger Controller
SS6781AGSTR	SSC	获取价格	Battery Charger Controller
SS6781B	SSC	获取价格	Battery Charge Controller
SS6781BCNTB	SSC	获取价格	Battery Charge Controller

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