BTS426L1 查看數據表（PDF） - Siemens AG

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BTS426L1

Smart Highside Power Switch

Siemens AG 

Parameter and Conditions

at Tj = 25 °C, Vbb = 12 V unless otherwise specified

Symbol

BTS 426 L1

Values

Unit

min typ max

Operating current (Pin 1)8), VIN=5 V,

Tj =-40...+150°C

Protection Functions

Initial peak short circuit current limit (pin 3 to 5)

Tj =-40°C:

Tj =25°C:

Tj =+150°C:

Repetitive short circuit shutdown current limit

Tj = Tjt (see timing diagrams, page 10)

Output clamp (inductive load switch off)

at VOUT = Vbb - VON(CL)

IL= 40 mA:

Thermal overload trip temperature

Thermal hysteresis

Reverse battery (pin 3 to 1) 9)

Reverse battery voltage drop (Vout > Vbb)

IL = -4 A

Tj=150 °C:

IGND

IL(SCp)

IL(SCr)

VON(CL)

Tjt

∆Tjt

-Vbb

-VON(rev)

-- 1.8 3.5 mA

21 32

15 25

11 17

-- 16

41 47

150

--

-- 10

--

--

-- 610

43 A

35

24

-- A

53 V

-- °C

-- K

32 V

-- mV

Diagnostic Characteristics

Open load detection current

(on-condition)

Open load detection voltage10)

Tj=-40 °C:

Tj=25 ..150°C:

(off-condition)

Tj=-40..150°C:

Internal output pull down

(pin 5 to 1), VOUT=5 V, Tj=-40..150°C

IL (OL)

VOUT(OL)

RO

20

-- 850 mA

10

-- 750

2

3

4V

4 10 30 kΩ

8) Add IST, if IST > 0, add IIN, if VIN>5.5 V

9) Requires 150 Ω resistor in GND connection. The reverse load current through the intrinsic drain-source

diode has to be limited by the connected load. Note that the power dissipation is higher compared to normal

operating conditions due to the voltage drop across the intrinsic drain-source diode. The temperature

protection is not active during reverse current operation! Input and Status currents have to be limited (see

max. ratings page 2 and circuit page 7).

10) External pull up resistor required for open load detection in off state.

Semiconductor Group

4

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