BTS 840 S2
Parameter and Conditions, each of the two channels Symbol Values Unit
at Tj = -40...+150°C, Vbb = 12 V unless otherwise specified min typ max
Infineon technologies 6 2003-Oct-01
Output clamp (inductive load switch off)12)
at VON(CL) = Vbb - VOUT, IL= 40 mA Tj =-40°C:
Tj =25°C...150°C:
VON(CL)
41
43
--
47 --
52 V
Thermal overload trip temperature Tjt 150 -- -- °C
Thermal hysteresis
∆
Tjt -- 10 -- K
Reverse Battery
Reverse battery voltage 13) -Vbb -- -- 32 V
Drain-source diode voltage (Vout > Vbb)
IL = - 4.0 A, Tj = +150°C -VON -- 600 -- mV
Diagnostic Characteristics
Current sense ratio14), static on-condition,
VIS = 0...5 V, Vbb(on) = 6.515)...27V,
kILIS = IL / IIS Tj = -40°C, IL = 5 A:
kILIS
4350
4800 5800
Tj= -40°C, IL= 0.5 A: 3100 4800 7800
Tj= 25...+150°C, IL= 5 A:
Tj= 25...+150°C, IL = 0.5 A: 4350
3800 4800
4800
5350
6300
Current sense output voltage limitation
Tj = -40 ...+150°C IIS = 0, IL = 5 A:
VIS(lim)
5.4
6.1 6.9 V
Current sense leakage/offset current
Tj = -40 ...+150°C VIN=0, VIS = 0, IL = 0:
IIS(LL)
0
-- 1µA
VIN=5 V, VIS = 0, IL = 0: IIS(LH) 0 -- 15
VIN=5 V, VIS = 0, VOUT = 0 (short circuit) IIS(SH) 16) 0 -- 10
Current sense settling time to IIS static±10% after
positive input slope16), IL = 0 5 A
tson(IS)
--
-- 300 µs
12) If channels are connected in parallel, output clamp is usually accomplished by the channel with the lowest
VON(CL)
13) Requires a 150 Ω resistor in GND connection. The reverse load current through the intrinsic drain-source
diode has to be limited by the connected load. Power dissipation is higher compared to normal operating
conditions due to the voltage drop across the 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 3 and
circuit page 9).
14) This range for the current sense ratio refers to all devices. The accuracy of the kILIS can be raised at least by
a factor of two by matching the value of kILIS for every single device.
In the case of current limitation the sense current IIS is zero and the diagnostic feedback potential VST is
High. See figure 2c, page 12.
15) Valid if Vbb(u rst) was exceeded before.
16) not subject to production test, specified by design