BTS 840-S2 Infineon Technologies, BTS 840-S2 Datasheet

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BTS 840-S2

Manufacturer Part Number
BTS 840-S2
Description
Manufacturer
Infineon Technologies
Datasheet

Specifications of BTS 840-S2

Packages
P-DSO-20
Channels
2.0
Ron @ Tj = 25°c
30.0 mOhm
Recommended Operating Voltage Min.
5.0 V
Recommended Operating Voltage Max.
34.0 V
Il(sc)
24.0 A
Smart High-Side Power Switch
Two Channels: 2 x 30m
Current Sense
Product Summary
General Description
Applications
Basic Functions
Protection Functions
Diagnostic Functions
Infineon technologies
Operating Voltage
On-state Resistance
Load Current (ISO)
Current Limitation
N channel vertical power MOSFET with charge pump, ground referenced CMOS compatible input,
diagnostic feedback and proportional load current sense monolithically integrated in Smart SIPMOS
technology.
Providing embedded protective functions
µC compatible high-side power switch with diagnostic feedback for 12V and 24V grounded loads
All types of resistive, inductive and capacitve loads
Most suitable for loads with high inrush currents, so as lamps
Replaces electromechanical relays, fuses and discrete circuits
CMOS compatible input
Undervoltage and overvoltage shutdown with auto-restart and hysteresis
Fast demagnetization of inductive loads
Logic ground independent from load ground
Short circuit protection
Overload protection
Current limitation
Thermal shutdown
Overvoltage protection (including load dump) with external
resistor
Reverse battery protection with external resistor
Loss of ground and loss of V
Electrostatic discharge protection (ESD)
Proportinal load current sense
Diagnostic feedback with open drain output
Open load detection in OFF-state with external resistor
Feedback of thermal shutdown in ON-state
Active channels: one
V
R
I
I
L(ISO)
L(SCr)
bb(on)
ON
bb
protection
30m
12A
24A
1 of 15
5.0...34V
two parallel
15m
24A
24A
IN1
ST1
IS1
IN2
ST2
IS2
PROFET ® BTS 840 S2
PROFET
Channel
Channel
Package
P-DSO-20-12 (Power SO 20)
Logic
Logic
Vbb
1
2
GND
Load 2
2003-Oct-01
OUT 2
OUT 1
Load 1

Related parts for BTS 840-S2

BTS 840-S2 Summary of contents

Page 1

... Open load detection in OFF-state with external resistor Feedback of thermal shutdown in ON-state Infineon technologies 5.0...34V bb(on) two parallel 30m 15m ON 12A 24A 24A 24A protection PROFET ® BTS 840 S2 Package P-DSO-20-12 (Power SO 20) Vbb IN1 Logic ST1 Channel IS1 1 OUT 1 IN2 Logic ST2 Channel IS2 ...

Page 2

... Open load detection Current sense Control and protection circuit of channel 2 2 BTS 840 S2 VBB OUT1 LOAD R O1 GND1 Channel 1 OUT2 PROFET Pin configuration (top view GND1 2 ...

Page 3

... ST, IS: out to all other pins shorted: require an external current limit for the GND and status pins a 150 bb(AZ) 2 (one layer thick) copper area for BTS 840 S2 Symbol Values self-limited ...

Page 4

... 150° 25° ON(NL =-40...+150°C: one channel active: I L(NOM) 85° L(GNDhigh 90 OUT 10 OUT off dV/dt -dV/dt 4 BTS 840 S2 Values min typ max -- -- Values min typ max -- ...

Page 5

... L(lim) =25° =+150° each channel I L(SCr) two parallel channels T =25°C: t j,start off(SC) = 4.7 V typ without charge pump require an external current limit for the GND and status pins (a 150 bb(AZ) ON(CL) 5 BTS 840 S2 Values min typ max 5 4 0.5 bb(under ...

Page 6

... 0 = IS(LL) IS(LH) I (short circuit) IS(SH) 10% after IS static son(IS) for every single device. ILIS is zero and the diagnostic feedback potential IS 6 BTS 840 S2 Values min typ 41 -- ON(CL 150 -- 600 ON 4350 ...

Page 7

... OUT(OL IN(T+) V IN(T 0 IN(off IN(on) t d(ST OL3) 17) t don(ST) 17) t doff(ST) = +1.6 mA ST(high) = +1.6 mA ST(low) = +1.6 mA =25 ... +150°C: ST(high) 7 BTS 840 S2 Values min typ -- 3 0.5 IN( 400 -- 5.4 6 2003-Oct-01 Unit max ...

Page 8

... GND2 -V > 3V typ. Under this condition the sense current bb OUT , in the off state, causes an internal current from output to ground and therefore also the sense current L and OUT BB 8 BTS 840 S2 22) Leadframe I IN2 IN2 13,14 OUT2 I ST2 PROFET ST2 ...

Page 9

... R =15k , case of reverse battery the current has to be limited the load. Temperature protection is not active Open-load detection OFF-state diagnostic condition: V > typ.; IN low OUT ST 9 BTS 840 Power GND = 47 V typ. ON(CL Logic ST IS ...

Page 10

... R L OUT E AS Maximum allowable load inductance for a single switch off j,start = 150° device stays off Z L [mH] 100 10 OUT 1 L 0.1 10 BTS 840 S2 , each channel OUT PROFET ST GND · · ...

Page 11

... OUT doff(ST) 90% t off t slc(IS) 10 soff(IS) Figure 2b: Switching a lamp OUT The initial peak current should be limited by the lamp and not by the current limit of the device. 11 BTS 840 dV/dton t off 2003-Oct-01 dV/dtoff t t ...

Page 12

... Figure 3b: Turn on into short circuit: shut down by overtemperature, restart by cooling (two parallel switched channels 1 and 2) IN1 2xI L(lim) t off(SC 1/2 ST1 and ST2 have to be configured as a 'Wired OR' function ST1/2 with a single pull-up resistor. 12 BTS 840 S2 I L(SCr L(SCr) t 2003-Oct-01 ...

Page 13

... Infineon technologies Figure 6a: Undervoltage Figure 6b: Undervoltage restart of charge pump ), EXT d(ST OL3) off- state V bb(u rst) V bb(under) t charge pump starts BTS 840 S2 not defined V bb(u cp) V bb(under) V bb(u rst) V ON(CL) on-state off- state V bb(over) V bb(o rst) V bb(u cp) V =4.7 V typ. bb(ucp) 2003-Oct- ...

Page 14

... Figure 8b: Current sense ratio: 15000 V bb(o rst) 10000 5000 Figure 9a: Output voltage drop versus load current [V] 0 0.0 0 can be raised at ILIS 14 BTS 840 S2 k ILIS ON(NL 2003-Oct ...

Page 15

... Life support devices or systems are intended to be implanted in the human body support and/or maintain and sustain and/or protect human life. If they fail reasonable to assume that the health of the user or other persons may be endangered. 15 BTS 840 S2 2003-Oct-01 ...

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