Datasheet > ICL7673CPA

ICL7673CPA

更新时间： 2024-01-31 22:55:32

品牌	Logo	应用领域
英特矽尔 - INTERSIL		电池
页数	文件大小	规格书
7页	141K
描述
Automatic Battery Back-Up Switch

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技术参数
数据手册

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ICL7673CPA 技术参数

是否Rohs认证：	不符合	生命周期：	Transferred
包装说明：	, CAN8,.2	Reach Compliance Code：	unknown
风险等级：	5.76	JESD-30 代码：	O-MBCY-W8
JESD-609代码：	e0	端子数量：	8
最高工作温度：	85 °C	最低工作温度：	-25 °C
封装主体材料：	METAL	封装等效代码：	CAN8,.2
封装形状：	ROUND	封装形式：	CYLINDRICAL
电源：	2.5/15 V	认证状态：	Not Qualified
子类别：	Power Management Circuits	最大供电电流 (Isup)：	0.005 mA
技术：	CMOS	温度等级：	OTHER
端子面层：	Tin/Lead (Sn/Pb)	端子形式：	WIRE
端子位置：	BOTTOM	Base Number Matches：	1

ICL7673CPA 数据手册

ICL7673

Typical Performance Curves (Continued)

= 5V

= 9V

= 3V

0.8

0.6

= 12V

0.4

= 15V

-40 C

0.2

25 C

85 C

120

140

180

14 16

SUPPLY VOLTAGE (V)

OUTPUT CURRENT (mA)

FIGURE 3. SUPPLY CURRENT AS A FUNCTION OF SUPPLY

VOLTAGE

FIGURE 4. P

OR S SATURATION VOLTAGE AS A

BAR

FUNCTION OF OUTPUT CURRENT

inverter drives another large P-Channel switch P . The

ICL7673, connected to a main and a backup power supply,

will connect the supply of greater potential to its output. The

circuit provides break-before-make switch action as it

switches from main to backup power in the event of a main

1mA

power supply failure. For proper operation, inputs V and V

must not be allowed to float, and, the difference in the two

supplies must be greater than 50mV. The leakage current

= 10mA

LOAD

= 0V

100mA

10nA

1nA

through the reverse biased parasitic diode of switch P is

very low.

85 C

Output Voltage

The output operating voltage range is 2.5V to 15V. The

insertion loss between either input and the output is a

function of load current, input voltage, and temperature. This

is due to the P-Channels being operated in their triode

region, and, the ON-resistance of the switches is a function

1000pA

10pA

1pA

of output voltage V . The ON-resistance of the P-Channels

have positive temperature coefficients, and therefore as

temperature increases the insertion loss also increases. At

low load currents the output voltage is nearly equal to the

greater of the two inputs. The maximum voltage drop across

25 C

switch P or P is 0.5V, since above this voltage the body-

drain parasitic diode will become forward biased. Complete

switching of the inputs and open-drain outputs typically

occurs in 50µs.

INPUT V (V)

FIGURE 5. I LEAKAGE CURRENT V TO V AS A

FUNCTION OF INPUT VOLTAGE

Input Voltage

The input operating voltage range for V or V is 2.5V to

Detailed Description

As shown in the Functional Diagram, the ICL7673 includes a

comparator which senses the input voltages V and V . The

15V. The input supply voltage (V or V ) slew rate should be

limited to 2V per microsecond to avoid potential harm to the

circuit. In line-operated systems, the rate-of-rise (or fall) of

the supply is a function of power supply design. For battery

applications it may be necessary to use a capacitor between

the input and ground pins to limit the rate-of-rise of the

output of the comparator drives the first inverter and the

open-drain N-Channel transistor P . The first inverter

BAR

drives a large P-Channel switch, P , a second inverter, and

another open-drain N-Channel transistor, S

. The second

BAR

3-84

1 2 345 6 7

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与ICL7673CPA相关器件

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ICL7673CPAZ	INTERSIL	Automatic Battery Back-Up Switch	获取价格
ICL7673CTV	ETC	Analog IC	获取价格
ICL7673IBA	ETC	Analog IC	获取价格
ICL7673IPA	ETC	Analog IC	获取价格
ICL7673ITV	INTERSIL	Automatic Battery Back-Up Switch	获取价格
ICL7675CJA	ETC	Analog IC	获取价格

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