BTS 6480SF Infineon Technologies, BTS 6480SF Datasheet

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BTS 6480SF

Manufacturer Part Number
BTS 6480SF
Description
Manufacturer
Infineon Technologies
Datasheet

Specifications of BTS 6480SF

Packages
PG-DSO-36
Channels
4.0
Channel Mix
2*4,5mohm+2*11mohm
Led Mode
Yes
Cranking Mode
No
Pwm Engine Integrated
Yes
S P I P o w e r C o n t r o l l e r
S P O C - B T S 6 4 8 0 S F
F o r A d v a n c e d F r o n t L i g h t C o n t r o l
D a t a S h e e t
Rev. 1.0, 2010-04-12
A u t o m o t i v e P o w e r

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BTS 6480SF Summary of contents

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Table of Contents 1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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Automatic Current Sense Multiplexer Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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For Advanced Front Light Control SPI Power Controller 1 Overview Features • 16 bit serial peripheral interface for control and diagnosis • Integrated PWM generator • Integrated control for two external smart power switches • 3.3 V and 5 V ...

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Configuration and status diagnosis are done via SPI. The SPI is daisy chain capable. The device provides a current sense signal per channel that is multiplexed to the diagnosis pin IS. It can be enabled and disabled via SPI commands. ...

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Block Diagram power VDD supply IN1 IN2 IN3 IS ISSY ESD protection PCLK LHI CS SCLK SO SI Figure 1 Block Diagram SPOC - BTS6480SF Data Sheet temperature clamp for sensor inductive load gate control driver & logic charge ...

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Terms Figure 2 shows all terms used in this data sheet SCLK V LHI V PCLK V IN1 V IN2 V IN3 Figure 2 Terms In all tables ...

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Pin Configuration 3.1 Pin Assignment SPOC - BTS6480SF VBB VBB OUT0 OUT0 OUT0 OUT0 OUT3 OUT3 VBB LHI SO SCLK GND IN1 IN2 IN3 Figure 3 Pin Configuration PG-DSO-36-43 Data Sheet (top view ...

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Pin Definitions and Functions Pin Symbol Power Supply Pins 28, 35, 36 VBB 19 VDD 15, 22 GND Parallel Input Pins (integrated pull-down, leave unused pins unconnected) 16 IN1 17 IN2 18 IN3 Power Output ...

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Electrical Characteristics 4.1 Absolute Maximum Ratings 1) Absolute Maximum Ratings T = -40 to +150 C; all voltages with respect to ground j (unless otherwise specified) Pos. Parameter Supply Voltage 4.1.1 Power supply voltage 4.1.2 Logic supply voltage 4.1.3 ...

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Absolute Maximum Ratings (cont’ -40 to +150 C; all voltages with respect to ground j (unless otherwise specified) Pos. Parameter 4.1.20 Current through serial output pin SO PWM Clock and Sense Synchronization Pin 4.1.21 Voltage at PWM clock ...

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Thermal Resistance Note: This thermal data was generated in accordance with JEDEC JESD51 standards. For more information www.jedec.org. Pos. Parameter 4.2.1 Junction to Soldering Point 1) 4.2.2 Junction to Ambient 1) Not subject to production test, specified ...

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Power Supply The SPOC - BTS6480SF is supplied by two supply voltages V switches. The supply line is used by the SPI related circuitry and for driving the SO line. A capacitor between DD pins VDD and GND is ...

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Activating one of the outputs via the input pins (INx = high) will wake-up the device out of stand-by mode. The power stages are working without VDD supply according to the table above. The output turn-on times will be extended ...

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Electrical Characteristics Electrical Characteristics Power Supply V Unless otherwise specified typical values Pos. Parameter 5.3.1 Supply voltage range for normal operation power switch 5.3.2 Extended supply voltage range for operation power ...

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Command Description HWCR Hardware Configuration Register W/R RB ADDR read write Shaded cells not mentioned in this chapter. 2) W/R Write/Read, RB Register Bank, ADDR Address Field ...

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Power Stages The high-side power stages are built by N-channel vertical power MOSFETs (DMOS) with charge pumps. There are four channels implemented in the device. Channels can be switched on via an input pin (please refer to Section 6.2) ...

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Figure 5 shows the complete input switch matrix. PWM Generator OFF/ ON FREQ-values ch0 ch1 ch2 ch3 PST IN1 IN2 IN3 INCG Figure 5 Input Switch Matrix The current sink to ground ensures that the input signal is low in ...

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Input Direct Drive This mode is the default after the device’s wake up and reset. The input pins activate the channels during normal operation (with default setting of bit IECR.INCG), stand-by mode and limp home mode. Channel 0 and ...

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Bulb and LED mode Channel 2 and channel 3 can be configured in bulb and LED mode via the SPI registers HWCR.LEDn. During LED mode following parameters are changed for an optimized functionality with LED loads: On-state resistance R ...

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External Driver Control Two external smart power drivers can be driven by the SPOC - BTS6480SF via the external driver control block. For each external driver there are two control outputs available: one output for controlling the input (EDOx) ...

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Electrical Characteristics Electrical Characteristics Power Stages V Unless otherwise specified typical values Pos. Parameter Output Characteristics 6.6.1 On-state resistance 6.6.2 Output clamp 6.6.3 Output leakage current per channel in stand-by 6.6.4 ...

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Electrical Characteristics Power Stages (cont’d) V Unless otherwise specified typical values Pos. Parameter 6.6.5 Inverse current capability per channel Input Characteristics 6.6.6 L-input level 6.6.7 H-input level 6.6.8 L-input current 6.6.9 H-input ...

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Electrical Characteristics Power Stages (cont’d) V Unless otherwise specified typical values Pos. Parameter Timings V 6.6.10 Turn-ON delay to 10 6.6.11 Turn-OFF delay to 90% 6.6.12 Turn-ON time to 90% ...

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Electrical Characteristics Power Stages (cont’d) V Unless otherwise specified typical values Pos. Parameter 6.6.16 Turn-ON/OFF matching 6.6.17 Turn-ON slew rate V 30% to 70% BB 6.6.18 Turn-OFF slew rate V 70% to ...

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Command Description OUT Output Configuration Registers W/R RB ADDR r Field Bits OUTn Channel status depends on automatic PWM generator configuration. For more details, please refer to HWCR ...

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Automatic PWM Generator The SPOC - BTS6480SF has an automatic PWM generator implemented, which allows to operate the channels in PWM mode with drastically reduced micro controller attention compared to a conventional PWM generation via SPI. After the initializing ...

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The applied clock signal can be monitored via SPI in the standard diagnosis. The standard diagnosis bit CLE provides the information in device operation mode (not during stand-by), if the applied clock is above or below the f threshold according ...

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V PCLK PCR.PST OUT.OUT0 V OUT0 OUT.OUT1 V OUT1 Figure 8 Phase Shifts between Channels 7.5 Daisy Chain Operation with PWM Generator The SPI of SPOC - BTS6480SF provides daisy chain capability. In this configuration several devices are activated by ...

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V PCLK PCR.PST OUT.OUT0 V OUT0 PCR.PST OUT.OUT0 V OUT0 OUT.OUT1 V OUT1 Figure 9 Phase Shifts between Devices 7.5.2 How to resynchronize a Reset SPOC In case of a reset SPOC device or a SPOC device in stand-by mode ...

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Electrical Characteristics Electrical Characteristics Power Stages V Unless otherwise specified typical values Pos. Parameter Automatic PWM Generator 7.6.1 External PWM clock threshold 7.6.2 External PWM clock 7.6.3 External PWM clock period ...

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Command Description HWCR Hardware Configuration Register W/R RB ADDR read write Field Bits CLK 5 CLKTRIM 8:6 1) For avoiding skews it is recommended to change from external to internal clock ...

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CHCRn Channel Configuration Register W/R RB ADDR r Field Bits FREQn 1 SYDELn 3 PSHn 6 PCR PWM Configuration Register W/R ...

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DCCRn Duty Cycle Configuration Register W/R RB ADDR r Field Bits DCn 8 Data Sheet Type Description rw Duty Cycle for Channel n during Automatic PWM ...

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Protection Functions The device provides embedded protective functions, which are designed to prevent IC destruction under fault conditions described in this data sheet. Fault conditions are considered as “outside” normal operating range. Protective functions are neither designed for continuous ...

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IN OUTx DS(Vtrip L(trip j(SC j(startn) + j(res j(start2) j(res j(start1) j(res) T j(start1 ERR Figure 11 Over current protection with latch due ...

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Over Current Protection at high The SPOC - BTS6480SF provides an over current protection for I I > during turn on the channel switches off and latches immediately. For details please refer to parameter L L(Vtrip) I (8.9.4). L(VTRIP) ...

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IN / OUTx L(Itrip ERR Figure 14 Shut Down by Over Current due to Short Circuit Type 2 8.4 Over Temperature Protection Each channel has its own temperature sensor. If the temperature at the channel ...

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For automatic PWM generation the counter will be reset also in case of duty cycles < 100% during the off-state. Please refer to Figure 14 for details. IN OUTx DS(Vtrip L(trip j(SC) T ...

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IN OUTx DS(Vtrip L(trip j(SC j(startn) + j(res j(start1) j(SW j(start1) j(res) T j(start1 ERR Figure 17 Dynamic Temperature Sensor Operations with latch ...

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Loss of Ground In case of complete loss of the device ground connections, but connected load ground, the SPOC - BTS6480SF securely changes to or stays in OFF-state. V 8.8 Loss case of loss of ...

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Electrical Characteristics Electrical Characteristics Protection Functions V Unless otherwise specified typical values Pos. Parameter Over Load Protection 8.9.1 Load current trip level Over Current Protection 8.9.2 Over current tripping activation time ...

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Electrical Characteristics Protection Functions (cont’d) V Unless otherwise specified typical values Pos. Parameter Over Temperature Protection 8.9.7 Number of automatic retries at over current or dynamic temperature sensor V shut down at ...

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Command Description HWCR Hardware Configuration Register W/R RB ADDR read write Field Bits CL 0 Standard Diagnosis TER 0 LHI SBM x Field Bits ERRn 3:0 ...

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Diagnosis For diagnosis purpose, the SPOC - BTS6480SF provides a current sense signal at pin IS and the diagnosis word via SPI. There is a current sense multiplexer implemented that is controlled via SPI. The sense signal can also ...

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For diagnosis feedback at different operation modes, please see following table. Table 6 Operation Modes Operation Mode Normal Operation (OFF) Short Circuit to GND Thermal shut down Short Circuit Open Load Inverse Current Normal Operation (ON) Short ...

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Current Sense Signal k The current sense signal (ratio k ratio can be adjusted to the load type (LED or bulb) via SPI register HWCR for channel 2 and 3. The accuracy ILIS k of the ratio depends on the ...

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Details about timings between the current sense signal be found in Figure 21. OUTx OFF OUT sIS(ON Figure 21 Timing of Current Sense Signal Current Sense Multiplexer There is a current ...

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Sense Synchronization during Automatic PWM Generation For performing current sense measurements there is a current sense synchronization signal at the pin ISSY available. This signal indicates the possible start of t after the time after channel’s activation. The delay ...

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Sense Measurement without Synchronization Signal The SPOC - BTS6480SF refers all the channel activations to the clock signal f external clock the state (ON- or OFF-state) is known by the micro controller, which allows a time based PCLK processing. ...

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V PCLK n * 1024 PCR.PST DCR.AMUX V OUT0 V OUT1 V OUT2 ... V OUT5 ISSY t Synch. delay0 t Synch. high A t ISSY delay ON/OFF * t Synch. high Synch. high ...

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Open Load in OFF-State For performing a dedicated open load in OFF-state detection a current source can be switched in parallel to the DMOS according to the Figure IECR.CSL. The following procedure is recommended to use: • Select the ...

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Electrical Characteristics Electrical Characteristics Diagnosis V Unless otherwise specified typical values Pos. Parameter Load Current Sense 9.8.1 Current sense ratio channel 0, 1: 0.600 A 1.3 A 2.6 A 4.0 A ...

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Electrical Characteristics Diagnosis (cont’d) V Unless otherwise specified typical values Pos. Parameter 9.8.3 Current sense drift of unaffected channel during inverse current of other channels channel 2, 3 (bulb) channel 2, 3 ...

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Electrical Characteristics Diagnosis (cont’d) V Unless otherwise specified typical values Pos. Parameter 9.8.11 Current sense settling time after current sense activation 9.8.12 Current sense settling time after multiplexer channel change 9.8.13 Current ...

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Command Description DCR Diagnosis Control Register W/R RB ADDR read write Output state Field Bits OUT.OUTn MUX 2:0 0 (OFF-state) SBM 3 MUX 2:0 1 (ON-state) SBM 3 1) Invalid in ...

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Field Bits Type CSOL 3 w AMUX 4 rw CHCRn Channel Configuration Register W/R RB ADDR r Field Bits SYDELn 3 Standard Diagnosis TER 0 LHI ...

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IECR Input, External Drive and Current Source Configuration Register W/R RB ADDR r Field Bits PRO+ 0 CSL 1 Data Sheet Type Description rw Configuration of EDD0 and EDD1 ...

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Serial Peripheral Interface (SPI) The serial peripheral interface (SPI full duplex synchronous serial slave interface, which uses four lines: SO, SI, SCLK and CS. Data is transferred by the lines SI and SO at the rate given ...

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SCLK - Serial Clock: This input pin clocks the internal shift register. The serial input (SI) transfers data into the shift register on the falling edge of SCLK while the serial output (SO) shifts diagnostic information out on the rising ...

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MI SO device device 1 MCS MCLK time Figure 28 Data Transfer in Daisy Chain Configuration 10.3 Timing Diagrams t CS(lead) CS SCLK SI t SO(en) SO Figure 29 Timing Diagram SPI Access Data Sheet SO device ...

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Electrical Characteristics Electrical Characteristics Serial Peripheral Interface (SPI) V Unless otherwise specified typical values Pos. Parameter Input Characteristics (CS, SCLK, SI) 10.4.1 L level of pin 10.4.2 H level of pin ...

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Electrical Characteristics Serial Peripheral Interface (SPI) (cont’d) V Unless otherwise specified typical values Pos. Parameter 10.4.17 Output enable time (falling valid) 10.4.18 Output disable time (rising ...

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SPI Protocol 16Bit Write OUT Register Read OUT Register Write Configuration and Control Registers Read Configuration and Control Registers ...

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Field Bits Type CLE 11 r SBM 13 r LHI ERR-flags available for external drivers 2) Invalid in stand-by mode 3) Not latching information, read of LHI-status during falling CS Data Sheet Description 2) External Clock ...

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Register Overview Register Bank 0 Bit Name W/R RB OUT W PCR W DCCR0 W DCCR1 W DCCR2 W DCCR3 ...

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Register Bank 1 Bit Name W/R RB IECR W HWCR DCR CHCR0 W CHCR1 ...

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Field Bits Type CLK 5 rw CLKTRIM 8:6 rw MUX 2:0 rw SBM 3 r CSOL 3 w AMUX 5:4 w Data Sheet Description 1) Clock Mode 0 External Clock input PCLK is used for PWM Mode 1 Internal Clock ...

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Field Bits Type FREQn 1 SYDELn 3 PSHn 6 For avoiding skews it is recommended to change from external to internal ...

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Application Description V bat 500 100nF W D-OUT VCC GPIO 8k GPIO 8k GPIO 3. 2.7k µC 1nF 3.9k 3.9k SPI 3.9k 3.9k GPIO VSS 3.9k ...

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Package Outlines SPOC - BTS6480SF 0.65 2) 0.33 ±0. 12.8 Index Marking 1) Does not include plastic or metal protrusion of 0.15 max. per side 2) Does not include dambar protrusion of 0.05 max. per ...

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Revision History Revision Date Changes 1.0 2010-04-12 Initial Data Sheet Data Sheet 72 SPOC - BTS6480SF Revision History Rev. 1.0, 2010-04-12 ...

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... 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 ...

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