SPI Power Controller
SPOC - BTS6460SF
For Advanced Front Light Control
Data Sheet
Rev. 1.0, 2010-04-12
Automotive Power
SPOC - BTS6460SF
Table of Contents
Table of Contents
1
2
2.1
3
3.1
3.2
4
4.1
4.2
5
5.1
5.2
5.3
5.4
6
6.1
6.2
6.3
6.4
6.5
6.6
7
7.1
7.2
7.3
7.4
7.5
7.6
7.7
8
8.1
8.2
8.3
8.4
8.5
8.6
8.7
8.8
8.9
8.10
9
9.1
9.2
9.3
9.4
9.5
Overview
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Block Diagram
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pin Configuration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Pin Assignment SPOC - BTS6460SF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electrical Characteristics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Thermal Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Power Supply
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Command Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Stages
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output ON-State Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Stage Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inverse Current Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Command Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic PWM Generator
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PWM Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PWM Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PWM Duty Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Channel Phase Shift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Daisy Chain Operation with PWM Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Command Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Protection Functions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over Current Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over Current Protection at high
V
DS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over Current Protection for Short Circuit Type 2 Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over Temperature Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reverse Polarity Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over Voltage Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loss of Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loss of
V
BB
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Command Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnosis
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnosis Word at SPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Load Current Sense Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sense Synchronization during Automatic PWM Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sense Measurement without Synchronization Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Current Sense Multiplexer Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2
13
13
14
15
16
17
17
17
19
20
21
25
26
26
26
27
27
28
30
31
34
34
36
36
37
39
39
40
40
41
43
44
45
45
48
49
49
Data Sheet
Rev. 1.0, 2010-04-12
SPOC - BTS6460SF
Table of Contents
9.6
9.7
9.8
9.9
10
10.1
10.2
10.3
10.4
10.5
10.6
11
12
13
Switch Bypass Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Open Load in OFF-State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Command Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Serial Peripheral Interface (SPI)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPI Signal Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Daisy Chain Capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Timing Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPI Protocol 16Bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Register Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
50
51
52
55
58
58
59
60
61
63
65
Application Description
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Package Outlines SPOC - BTS6460SF
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Revision History
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Data Sheet
3
Rev. 1.0, 2010-04-12
For Advanced Front Light Control
SPI Power Controller
SPOC - BTS6460SF
1
Features
•
•
•
•
•
•
•
•
•
Overview
16 bit serial peripheral interface for control and diagnosis
Integrated PWM generator
3.3 V and 5 V compatible logic pins
Very low stand-by current
Enhanced electromagnetic compatibility (EMC) for bulbs as well as
LEDs with increased slew rate
Stable behavior at under voltage
Device ground independent from load ground
Green Product (RoHS-Compliant)
AEC Qualified
PG-DSO-36-43
Description
The SPOC - BTS6460SF is a four channel high-side smart power switch in PG-DSO-36-43 package providing
embedded protective functions. It is especially designed to control standard exterior lighting in automotive
applications. In order to use the same hardware, the device can be configured to bulb or LED mode for channel 2
and channel 3. As a result, both load types are optimized in terms of switching and diagnosis behavior.
It is specially designed to drive exterior lamps up to 65W, 27W and 10W and HIDL.
Product Summary
Operating Voltage Power Switch
Logic Supply Voltage
Supply Voltage for Load Dump Protection
Maximum Stand-By Current at 25
°C
Typical On-State Resistance at
T
j
= 25
°C
channel 0, 1
channel 2, 3
Maximum On-State Resistance at
T
j
= 150
°C
channel 0, 1
channel 2, 3
SPI Access Frequency
V
BB
V
DD
V
BB(LD)
I
BB(STB)
R
DS(ON,typ)
4.5 … 28 V
3.0 … 5.5 V
40 V
4.5
µA
3.5 mΩ
11 mΩ
9 mΩ
28 mΩ
5 MHz
R
DS(ON,max)
f
SCLK(max)
Type
SPOC - BTS6460SF
Data Sheet
Package
PG-DSO-36-43
4
Marking
BTS6460SF
Rev. 1.0, 2010-04-12
SPOC - BTS6460SF
Overview
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. An over load and over temperature flag is provided in the SPI diagnosis word. A multiplexed switch
bypass monitor provides short-circuit to
V
BB
diagnosis. In OFF state a current source can be switched to the output
of one selected channel in order to detect an open load.
Additionally, there is an integrated PWM generator implemented, which allows autonomous PWM operation with
programmable phase shifts, duty cycles and PWM frequencies. The status diagnosis and the current sense signal
is available for each channel.
The SPOC - BTS6460SF provides a fail-safe feature via limp home input pin.
The power transistors are built by N-channel vertical power MOSFETs with charge pumps.
Protective Functions
•
•
•
•
•
•
•
•
•
Reverse battery protection with external components
Reversave
TM
- Reverse battery protection by self turn on of all channels
Short circuit protection
Over load protection
Thermal shutdown with latch and dynamic temperature sensor
Over current tripping
Over voltage protection
Loss of ground protection
Electrostatic discharge protection (ESD)
Diagnostic Functions
•
•
•
•
•
•
•
•
Multiplexed proportional load current sense signal (IS)
Enable function for current sense signal configurable via SPI
High accuracy of current sense signal at wide load current range
Current sense ratio (
k
ILIS
) configurable for LEDs or bulbs for channel 2 and 3
Very fast diagnosis in LED mode
Feedback on over temperature and over load via SPI
Multiplexed switch bypass monitor provides short circuit to
V
BB
detection
Integrated, in two steps programmable current source for open load in OFF-state detection
Application Specific Functions
•
Fail-safe activation via LHI pin
Applications
•
•
•
•
High-side power switch for 12 V grounded loads in automotive applications
Especially designed for standard exterior lighting like high beam, low beam, indicator, parking light and
equivalent LEDs
Load type configuration via SPI (bulbs or LEDs) for optimized load control
Replaces electromechanical relays, fuses and discrete circuits
Data Sheet
5
Rev. 1.0, 2010-04-12
京公网安备 11010802033920号
EEWORLD
