BTS3405G Infineon Technologies, BTS3405G Datasheet
BTS3405G
Specifications of BTS3405G
BTS3405GTR
SP000237783
Available stocks
Related parts for BTS3405G
BTS3405G Summary of contents
Page 1
...
Page 2
... 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 BTS3405G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 8 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Data Sheet Smart Low-Side Power Switch 2 BTS3405G Rev. 1.0, 2007-12-06 ...
Page 3
... Green Product (RoHS compliant) • AEC Qualified Description The BTS3405G is a two channel low-side power switch in PG-DSO-8-25 package providing embedded protective functions. The device consists of two separate monolithic IC. Each with one N-channel power transistor and additional protection circuitry. Table 1 Product Summary ...
Page 4
... The device is able to switch all kind of resistive, inductive and capacitive loads, limited by current capabilities. The BTS3405G offers ESD protection of each IN Pin in relation to the corresponding Source Pin. The overtemperature protection is in order to prevent the device from overheating due to overload and/or bad cooling conditions. The temperature information is given by a temperature sensor in each of the two power MOSFET ...
Page 5
... Protection detection Over- Over- voltage temperature Protection Protection Gate Driving Unit Short ESD circuit Protection detection I IN1 IN1 BTS3405G I IN2 IN2 Source2 Source1 Smart Low-Side Power Switch Block DiagramTerms Drain 1 Source 1 Drain2 Source2 BlockDiagram_3405 Drain1 Drain2 Rev. 1.0, 2007-12-06 BTS3405G Terms.emf ...
Page 6
... Input / Fault feedback for channel 1 3 Source2 Ground connection for channel 2 4 IN2 Input / Fault feedback for channel Drain2 Load connection channel Drain1 Load connection channel 1 Data Sheet Pin ConfigurationPin Assignment BTS3405G 1 IN1 2 3 IN2 4 P-DSO-8.vsd 6 Smart Low-Side Power Switch 8 Drain 1 7 Drain 1 ...
Page 7
... Symbol Limit Values Unit Min. Max. V – -0 self limited – 600 – – – 0.78 tot T +150 °C - -55 +150 °C stg ESD 7 Smart Low-Side Power Switch BTS3405G Test Conditions – -0.2 V < < < -0 > ° 350 mA °C J(start 250 mA 150 °C J(start 200 mA ...
Page 8
... Typical Transient Thermal Impedance single pulse, Data Sheet General Product CharacteristicsThermal Resistance Symbol Limit Values Min. Typ. R – – thJC R – 80 thJA Smart Low-Side Power Switch BTS3405G Unit Conditions Max K – K/W thJA Z thJC Zth_3405 .emf Z 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 in each channel 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 BTS3405G pulse_BTS3405_25 .emf Rev. 1.0, 2007-12-06 ...
Page 10
... Input Circuit Figure 6 shows the input circuit of the BTS3405G. 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 BTS3405G 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 ...
Page 12
... Block Description and CharacteristicsInput and Power Stage Figure 11 shows the timing definition. t off t offd Symbol Limit Values Min. Typ. Max. I – INnom I – 100 150 INlim V 1.3 1.7 2.2 INTH 0.8 – – 12 BTS3405G t t Switching.emf Unit Test Conditions µ µ 150 ° µ 25° ...
Page 13
... Min. Typ. Max. R – 0.9 – DS(on) – 1.8 2.4 – 0.7 – – 1.4 1.9 I 350 400 – Dnom I – – 5 DSS – 2.5 6 – BTS3405G Unit Test Conditions 1) Ω ° 200mA D T Ω = 150 ° 200mA D 1) Ω ° ...
Page 14
... Smart Low-Side Power Switch Block Description and CharacteristicsInput and Power Stage Symbol Limit Values Min. Typ. Max. t – – 15 off – 2 – 6.0 ds off V – -1 and . thJA DS(on) 14 BTS3405G Unit Test Conditions µ 90 µ 10 9.3 V/µs 50 Ω 18.2 V/µs 30 Ω ...
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 BTS3405G 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 BTS3405G. This energy can be calculated with following equation: V out ⋅ ------------------------ bb out Following equation simplifies under assumption of ⋅ ------------------------------------- - – out Data Sheet ...
Page 17
... IN lim Figure 15 Short Circuit Behavior of BTS3405G 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. Data Sheet ...
Page 18
... T 1) °C 150 175 – JSD ∆ T – 10 – K JSD V 42 – Clamp I 0.6 0.9 1.2 A lim 0.3 – – – – 1.4 t µs – – 50 dlim 18 BTS3405G Test Conditions – mA × t measure dlim ° 150 ° -40 ° Rev. 1.0, 2007-12-06 ...
Page 19
... Package Outlines BTS3405G 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-8-25 (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 BTS3405G Revision History Rev. 1.0, 2007-12-06 ...
Page 21
... Infineon Technologies Office. Infineon Technologies components may be used in life-support devices or systems only with the express written approval of Infineon Technologies failure of such components can reasonably be expected to cause the failure of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain and/or protect human life ...