Datasheet > E-TDA7476

E-TDA7476

更新时间： 2024-01-03 13:43:51

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		光电二极管商用集成电路
页数	文件大小	规格书
19页	178K
描述
SPECIALTY CONSUMER CIRCUIT, PDSO24, SOP-24

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技术参数
数据手册

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E-TDA7476 技术参数

生命周期：	Active	零件包装代码：	SOIC
包装说明：	SOP,	针数：	24
Reach Compliance Code：	compliant	HTS代码：	8542.39.00.01
Factory Lead Time：	13 weeks	风险等级：	5.12
商用集成电路类型：	CONSUMER CIRCUIT	JESD-30 代码：	R-PDSO-G24
长度：	15.4 mm	功能数量：	1
端子数量：	24	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：	2.65 mm	表面贴装：	YES
技术：	BCDMOS	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
宽度：	7.5 mm	Base Number Matches：	1

E-TDA7476 数据手册

TDA7476

The following table shows the result pointed out by TDA7476 when multiple misconnections are present:

ACTUAL FAULTS

POINTED OUT FAULT

S.C. to GND

S.C. CH+ to GND + OPEN LOAD

S.C. CH(*) to GND + S.C. ACROSS LOAD

S.C. CH- to GND + OPEN LOAD

S.C. to GND

OPEN LOAD

S.C. CH(*) to V + OPEN LOAD

S.C. to V

S.C. CH(*) to V + S.C. ACROSS LOAD

S.C. CH+ to V + S.C. CH- to GND

S.C. CH- to V + S.C. CH+ to GND

S.C. to GND + S.C. to V

(*) CH means CH+ or CH-

AUX1 - AUX2

■ Voltage across the sensing resistors

S.C. to GND

Normal Operation

Open Load

V_S

0.85V 0.5V

125mV

85mV

D97AU572A

■ The minimum voltage of the AUX IN pin to sense the open load condition is 2V.

■ The minimum voltage of the AUX IN pin to detect the short circuit to GND, by sensing the drop on the

resistors is 4.5V. If this voltage falls below 2V, the AUX in is considered short circuited to GND. From

2V to 4.5V the sensing circuit can detect a short circuit in both ways (by sensing across the resistor or

through the voltage between the AUX IN pin and GND).

PERMANENT DIAGNOSTIC - THRESHOLDS

CH1, CH2, CH3, CH4, CH5

■ The circuit will recognize as a fault condition any situation where the following short circuit voltages last

more than 2 sec (typ).

■ Output voltage

S.C. to GND

Normal Operation

S.C. to Vs

0.8V 1.2V

V_S-1.2

V_S-0.6V

V_S

D97AU573B

AUX1 - AUX2

■ The voltage across the resistors Rsens1 or Rsens2 is sensed. The circuit will recognize as a fault

condition any situation where the following voltages last more than 2sec (typ) in the region "S.C.to GND"

or "open load".

S.C. to GND

Normal Operation

Open Load

V_S

0.85V 0.5V

125mV

85mV

D97AU574A

9/19

1...6 7 8910 11 12...19

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