Datasheet > BD4LD650EFV-C

BD4LD650EFV-C

更新时间： 2024-03-03 10:10:50

品牌	Logo	应用领域
罗姆 - ROHM		/
页数	文件大小	规格书
51页	2412K
描述
BD4LD650EFV-C is a 4-channel SPI-input low side switch for automotive and industrial application. It has built-in open load detection function, short ground detection function, over current protection function, thermal shutdown function, and active clamp function.

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BD4LD650EFV-C 数据手册

BD4LD650EFV-C

Absolute Maximum Ratings (Tj = 25 °C)

Parameter

Symbol

Rating

Unit

VDDIO, VDD Power Supply Voltage

Output Voltage (Power MOS Output)

Output Current (Power MOS Output)

Output Voltage (SPI)

V_DDIO, V_DD

V_OUT1-4

-0.3 to +7

-0.3 to (Internal Limit)^{(Note 1)}

(Internal Limit)^{(Note 2)}

-0.3 to +7

I_OUT1-4

V_SO

Input Voltage (IDLE)

V_IDLE

-0.3 to +7

Input Voltage (SPI)

V_CSB, V_SCLK, V_SI

V_IN1, V_IN2, V_IN3

Tstg

-0.3 to +7

Input Voltage (IN1, IN2, IN3)

Storage Temperature Range

Maximum Junction Temperature

-0.3 to +7

-55 to +150

°C

Tjmax

150

Active Clamp Energy (Single Pulse)

E_{AS1-4(25 °C)}

E_{AS1-4(150 °C)}

E_{S, AS1-4(25 °C)}

E_{S, AS1-4(150 °C)}

E_{AR(125 °C)}

125

Tj_(START)= 25 °C, I_{OUT1-4(START)}= 0.4 A

Active Clamp Energy (Single Pulse)^{(Note 3)}

Tj_(START)= 150 °C, I_{OUT1-4(START)}= 0.4 A

Active Clamp Energy (Single Pulse)

Tj_(START)= 25 °C, I_{OUT1-4(START)}= 0.8 A, Synchro Mode

Active Clamp Energy (Single Pulse)^{(Note 3)}

Tj_(START)= 150 °C, I_{OUT1-4(START)}= 0.8 A, Synchro Mode

Active Clamp Energy (Repetitive)^{(Note 3)(Note 4)}

Tj_(START)= 125 °C, I_OUT(START)= 0.2 A

Active Clamp Energy (Repetitive)^{(Note 3)(Note 4)}

Tj_(START)= 125 °C, I_OUT(START)= 0.4 A, Synchro Mode

(Note 1) Limited by the active clamp function.

E_{S, AR(125 °C)}

(Note 2) Limited by the over current protection function. The over current detection value can be adjusted in two levels.

(Note 3) Not 100 % are tested.

(Note 4) 2M cycles, All channel input.

Caution 1: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit

between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is

operated over the absolute maximum ratings.

Caution 2: Should by any chance the maximum junction temperature rating be exceeded the rise in temperature of the chip may result in deterioration of the

properties of the chip. In case of exceeding this absolute maximum rating, design a PCB with thermal resistance taken into consideration by

increasing board size and copper area so as not to exceed the maximum junction temperature rating.

Caution 3: When IC is turned off with an inductive load, reverse energy has to be dissipated in the IC. This energy can be calculated by the following equation:

푉_퐵퐴푇

퐸_퐿= ꢀ퐼_{푂푈푇(푆푇퐴푅푇)}^ꢁ× ꢂ1 −

ꢃ

푉_퐵퐴푇− 푉_{푂푈푇(퐶퐿)}

Where:

L is the inductance of the inductive load.

I_OUT(START)is the output current at the time of turning off.

V_OUT(CL)is the output clamp voltage.

The IC integrates the active clamp function to internally absorb the reverse energy E_Lwhich is generated when the inductive load is turned off.

When the active clamp operates, the thermal shutdown function does not work. Decide a load so that the reverse energy E_Lis active clamp

energy E_AS(Figure 1.), E_S,AS(Figure 2.) or under when inductive load is used.

10000

1000

100

10000

1000

100

Tj = 25 °C

Tj = 150 °C

0.2

0.3

0.4

0.5

0.6

0.2

0.4

0.6

0.8

1.0

1.2

Output Current (Start): I_OUT(START)[A]

Figure 1. Active Clamp Energy (Single Pulse) vs

Output Current

Figure 2. Active Clamp Energy (Single Pulse)

Synchro Mode vs Output Current

www.rohm.com

TSZ22111 • 15 • 001

TSZ02201-0G5G1G400170-1-2

03.Aug.2023 Rev.002

5/48

1 2 3 456 7 8...51

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