bts3205 Infineon Technologies Corporation, bts3205 Datasheet
bts3205
Available stocks
Related parts for bts3205
bts3205 Summary of contents
Page 1
...
Page 2
... Input and Power Stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5.1.1 Input Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5.1.2 Failure Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5.1.3 Output On-State Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5.1.4 Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5.1.5 Output Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 5.1.6 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6 Protection Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 6.1 Thermal Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 6.2 Overvoltage Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 6.3 Short Circuit Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 6.4 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 7 Package Outlines BTS3205G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 8 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Data Sheet Smart Low-Side Power Switch 2 BTS3205G Rev. 1.0, 2007-12-06 ...
Page 3
... Green Product (RoHS compliant) • AEC Qualified Description The BTS3205G is a one channel low-side power switch in PG-DSO-8-24 package providing embedded protective functions. The device is monolithic integrated and consist of an N-channel power transistor and additional protection circuitry. Table 1 Product Summary Drain Voltage ...
Page 4
... The temperature information is given by a temperature sensor in the power MOSFET. During thermal shutdown the device tries to sink an increased input current for feedback the fault condition. The BTS3205G has a thermal-auto-restart function, the device will turn on again after the measured temperature has dropped for the thermal hysteresis. ...
Page 5
... GND Figure 2 Terms Data Sheet Over- Over- voltage temperature Protection Protection Short circuit detection BTS3205G Source Smart Low-Side Power Switch BTS3205G Block DiagramTerms Drain Source BlockDiagram.emf Drain V D Terms .emf Rev. 1.0, 2007-12-06 ...
Page 6
... Pin Assignment BTS3205G Source Figure 3 Pin Configuration PG-DSO-8-24 3.2 Pin Definitions and Functions Pin Symbol 1 Source Drain Data Sheet Pin ConfigurationPin Assignment BTS3205G n.c. 3 n.c. 4 P-DSO-8_1Chan.vsd Function Ground connection Input / Fault feedback not connected Load connection 6 Smart Low-Side Power Switch 8 ...
Page 7
... – – 0.78 tot T +150 °C - +150 °C -55 stg ESD 7 Smart Low-Side Power Switch BTS3205G Test Conditions – -0.2 V < < < -0 > °C ...
Page 8
... General Product CharacteristicsThermal Resistance Symbol Limit Values Min. Typ. R – – thJC R – 90 thJA - Smart Low-Side Power Switch BTS3205G Unit Conditions Max K – K/W Z thJA Z thJC Zth_3205 .emf Z and thJA thJC Rev. 1.0, 2007-12-06 ...
Page 9
... PCB is mounted vertical without blown air with 0.78W power dissipation generated for single pulse on the DMOS Data Sheet General Product CharacteristicsThermal Resistance Single pulse - [ with different Duty cycles thJA = 25 ° Smart Low-Side Power Switch BTS3205G pulse_BTS3205_24 .emf Rev. 1.0, 2007-12-06 ...
Page 10
... Input Circuit Figure 6 shows the input circuit of the BTS3205G. The zener Diode protects the input circuit against ESD pulses. The internal circuitry is supplied by the input PIN. During normal operation the Input is connected to the Gate of the power MOSFET. During fault condition the device tries to sink the current information back to the driving circuit ...
Page 11
... Failure Feedback During failure condition the BTS3205G tries to sink a increased input current 5.1.3 Output On-State Resistance The on-state resistance depends on the junction temperature R on-state resistance . DS(on) Figure 9 Typical On-State Resistance, 5.1.4 Power Dissipation The maximum allowed power dissipation in 1,00 0,10 0,01 Figure 10 Maximal Allowable Power Dissipation Data Sheet ...
Page 12
... Symbol Limit Values Min. Typ. Max. I – INnom I – 100 150 INlim V 1.3 1.7 2.2 INTH 0.8 – – 12 BTS3205G t t Switching.emf Unit Test Conditions µ µ 150 ° µ ...
Page 13
... DS(on) – 1.8 2.4 – 0.7 – – 1.4 1.9 I 350 520 – Dnom I – – 5 DSS – 2.5 6 – BTS3205G Unit Test Conditions 1) Ω ° 200mA D T Ω = 150 ° 200mA D 1) Ω ° ...
Page 14
... – 2 – 6.0 ds off V – -1 and . thJA DS(on) 14 BTS3205G Unit Test Conditions µ 90 µ 10 9.3 V/µs 50 Ω 18.2 V/µs 30% - 50% ...
Page 15
... Thermal Protection The device is protected against over temperature due to overload and / or bad cooling conditions. To ensure this a temperature sensor located in the Power MOSFET is used. The BTS3205G has a thermal auto-restart function. After the device has cooled down it will switch on again see Figure 12. ...
Page 16
... lamp V bb Figure 14 Switching an Inductance While demagnetization of inductive loads, energy has to be dissipated in the BTS3205G. This energy can be calculated with following equation: V out ⋅ ------------------------ bb out Following equation simplifies under assumption of ...
Page 17
... Figure 15 Short Circuit Behavior of BTS3205G As the device is a low side switch it can be assumed that the Source to Ground path has a neglectable low impedance and resistance. Therefore all impedance and resistance in the load path during short circuit is merged into Zsc. ...
Page 18
... K JSD V 42 – Clamp I 0.6 0.9 1.2 A lim 0.3 – – – – 1.4 t µs – – 50 dlim 18 BTS3205G Test Conditions – mA × t measure dlim ° 150 ° -40 °C ...
Page 19
... Package Outlines BTS3205G 1.27 +0.1 2) 0.41 -0.06 0 -0.2 Index Marking 1) Does not include plastic or metal protrusion of 0.15 max. per side 2) Lead width can be 0.61 max. in dambar area Figure 16 PG-DSO-8-24 (Plastic Dual Small Outline Package) Green Product (RoHS compliant) To meet the world-wide customer requirements for environmentally friendly products and to be compliant with government regulations the device is available as a green product ...
Page 20
... Revision History Version Date Changes Rev. 1.0 2007-12-06 released data sheet Data Sheet Smart Low-Side Power Switch 20 BTS3205G Revision History Rev. 1.0, 2007-12-06 ...
Page 21
Edition 2007-12-06 Published by Infineon Technologies AG 81726 Munich, Germany 12/11/07 Infineon Technologies AG © All Rights Reserved. Legal Disclaimer The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics. With ...