TEA1104

更新时间： 2024-01-17 07:27:17

品牌	Logo	应用领域
恩智浦 - NXP		电池
页数	文件大小	规格书
16页	123K
描述
Cost effective battery monitor and fast charge IC for NiCd and NiMH chargers

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中文翻译

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技术参数
数据手册

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TEA1104 技术参数

生命周期：	Obsolete	包装说明：	SOP,
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.71
可调阈值：	NO	模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码：	R-PDSO-G8	长度：	4.9 mm
信道数量：	2	功能数量：	1
端子数量：	8	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	认证状态：	Not Qualified
座面最大高度：	1.75 mm	最大供电电压 (Vsup)：	11.5 V
最小供电电压 (Vsup)：	5.45 V	表面贴装：	YES
技术：	BICMOS	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
宽度：	3.9 mm	Base Number Matches：	1

TEA1104 数据手册

Philips Semiconductors

Objective speciﬁcation

Cost effective battery monitor and fast

charge IC for NiCd and NiMH chargers

TEA1104; TEA1104T

PINNING

SYMBOL

DESCRIPTION

GND

NTC

ground

handbook, halfpage

GND

NTC

LED

negative temperature coefficient

resistor input

OSC

TEA1104

V_S

stabilized supply voltage

battery voltage sensing

reference resistor

positive supply voltage

oscillator input

V_bat

R_ref

V_P

ref

bat

MGE353

OSC

LED

Fig.2 Pin configuration.

LED output

• Trickle charge is active if:

– battery full is detected

INTRODUCTION

The operation of the TEA1104; TEA1104T is explained

with the aid of the application diagram illustrated in Fig.7.

– maximum time is exceeded

– maximum cut-off temperature is exceeded after the

initial phase.

An application note (AN95085) is available describing the

versatility of the TEA1104; TEA1104T.

An external power current source charges the batteries via

an electronic switch which is controlled by the TEA1104.

The TEA1104 monitors the battery voltage. Fully charged

batteries are detected when the battery voltage peaks. In

fact, a voltage drop of 0.25% with respect to the top value

is detected. Fast charging is initiated at ‘power on’ or at

‘replaced batteries’. The switch is continuously on,

providing that all protection levels are met. At battery full

detection, the charge current is duty cycled to reduce the

average charge current to a lower level, keeping the

batteries fully charged but at he same time assuring long

battery life. In Fig.3 the battery voltage during fast charge

is plotted.

Supply block

For correct start-up, the IC supply current is limited to

35 µA (typ.) until the start-up voltage of 6.4 V is reached

(standby mode). Thereafter, the operating supply voltage

V_Phas to be within the window of 5.45 to 11.5 V, meaning

that there is no need for an external voltage regulator to

supply the IC.

The supply block delivers the following outputs:

• With the help of an external resistor (pin R_ref), a

reference current is obtained which defines the

accuracy of all IC timing characteristics

• Externally available 4.25 V stabilized voltage source

(V_source). This source is used internally to supply a large

part of the circuit and can be used to set the NTC biasing

and to supply other external circuitry with a maximum

current of 1 mA. Protection information is provided via

V_S, to design a dual LED indicator

FUNCTIONAL DESCRIPTION

A block diagram of the TEA1104; TEA1104T is illustrated

in Fig.1

Mode latch

• Power-on reset pulse resets all digital circuitry after a

start or restart, due to an interrupted V_S.

The Mode latch determines if the system is in the fast or in

the slow charge mode.

• Fast charge is active at:

– power switch-on and battery connected

– temperature between minimum and maximum value

– battery insert

1996 Feb 26

1 2 345 6 7...16

中文翻译

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与TEA1104相关器件

型号	品牌	获取价格	描述	数据表
TEA1104P	NXP	获取价格	暂无描述
TEA1104T	NXP	获取价格	Cost effective battery monitor and fast charge IC for NiCd and NiMH chargers
TEA1104TD-T	ETC	获取价格	Battery Management
TEA1104T-T	NXP	获取价格	IC 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, Power Management Circuit
TEA1110	NXP	获取价格	Low voltage versatile telephone transmission circuit with dialler interface
TEA1110A	NXP	获取价格	Low voltage versatile telephone transmission circuit with dialler interface
TEA1110A	UTC	获取价格	LOW VOLTAGE VERSATILE TELEPHONE TRANSMISSION TELEPHONE TRANSMISSION INTERFACE
TEA1110A(14DIP)	UTC	获取价格	Telephone Circuit, Bipolar, PDIP14
TEA1110A(14SOP)	UTC	获取价格	Telephone Circuit, Bipolar, PDSO14
TEA1110A_10	UTC	获取价格	LOW VOLTAGE VERSATILE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE

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