Datasheet, Rev. 1.1, February 2008
BTS3160D
10mOhm Smart Low Side Power Switch
Automotive Power
Smart Low Side Power Switch
HITFET - BTS3160D
Table of Contents
Table of Contents
Table of Contents
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1
2
2.1
3
3.1
3.2
4
4.1
4.2
4.3
5
5.1
5.1.1
5.2
5.2.1
5.3
6
6.1
6.2
6.3
6.4
7
7.1
7.2
7.3
7.4
8
8.1
8.2
9
10
Overview
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Block Diagram
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Voltage and current naming definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pin Configuration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pin Assignment BTS3160D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
General Product Characteristics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply and Input Stage
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Under Voltage Lock Out / Power On Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Readout of Fault Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics Supply and Input Stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Stage
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output On-state Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Timing and Slopes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inductive Output Clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics Power Stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Protection Functions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over Voltage Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Short Circuit Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
8
9
9
11
11
11
12
12
13
14
14
17
18
20
22
22
22
22
25
Application Information
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Dimensioning of serial Resistor at IN pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Further Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Package Outlines
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Revision History
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Datasheet
2
Rev. 1.1, 2008-02-28
Smart Low Side Power Switch
HITFET - BTS3160D
BTS3160D
1
Overview
The BTS3160D is a one channel low-side power switch in
PG-TO-252-5-13 package providing embedded protective functions.
The power transistor is realized by a N-channel vertical power
MOSFET.
The device is controlled by a chip in Smart Power Technology.
PG-TO-252-5-13
Features
•
•
•
•
•
•
•
Logic level input compatible to 3.3 V or 5V micro controllers
Supply by
V
bb
line, down to 6 V
Very low over all leakage current
Providing digital fault information
Electrostatic discharge protection (ESD)
Green Product (RoHS compliant)
AEC Qualified
Basic Electrical Data
V
D
V
S
I
Dnom
I
DSC
I
DSS
I
SSS
E
AS
Table 1
Drain voltage
Supply voltage
On-State resistance at 25°C
Nominal load current
Maximum inrush current
Leakage current MOSFET at
V
bb
= 13.5 V,
T
J
= 85
°C
Supply current in off mode at
V
bb
= 13.5 V,
T
J
= 85
°C
Clamping Energy
40 V
6.0 … 45 V
7.8 A
70 A
2
µA
4
µA
0.3 J
R
DS(ON,max)
10 mΩ
Type
BTS3160D
Datasheet
3
Package
PG-TO-252-5-13
Rev. 1.1, 2008-02-28
Smart Low Side Power Switch
HITFET - BTS3160D
Overview
Digital Diagnostic
•
•
•
Over temperature shutdown
Over load shutdown
Short circuit shutdown
Protection Functions
•
•
•
•
Electrostatic discharge (ESD)
Under voltage lock out
Over temperature (shutdown with latch)
Over voltage (active clamped)
Application
•
•
•
•
•
Micro controller compatible low side power switch with digital feedback for 12V loads
All types of resistive, inductive and capacitive loads
Suitable for loads with high inrush current, such as lamps
Also suitable for LEDs because of low leakage current
Replaces electromechanical relays, fuses and discrete circuits
Description
The BTS3160D is a latching one channel low-side power switch in PG-TO-252-5-13 package providing embedded
protective functions. The power transistor is build by a N-channel vertical power MOSFET. The device is controlled
by a control chip in Smart Power Technology.
The device is able to switch all kind of resistive, inductive and capacitive loads. For lamp loads the lamp-inrush-
current, eight- to ten-times the nominal current, has to be considered. The maximal inrush current has to be below
the minimum short circuit shutdown current.
The ESD protection of the
V
S
and IN/Fault pin is in relation to GND.
The BTS3160D is supplied by the
V
S
Pin. This Pin can be connected to battery line. The supply voltage is
monitored by the under voltage lock out circuit. The Gate driving unit allows to operate the device in the low ohmic
range even with 3.3 V input signal. For PWM application the device offers smooth turn-on and off due to the
embedded edge shaping function, in order to reduce EMC noise.
The over voltage protection is for protection during load-dump or inductive turn off conditions. The power MOSFET
is limiting the drain-source voltage, if it gets too high. This function is available even without supply.
The over temperature protection is in order to save the device from overheating due to overload and bad cooling
conditions. In order to reduce the device stress the edge shaping is disabled during thermal shutdown. After
thermal shutdown the device stays off until the latch is reset by a IN-Low signal. For high dynamic overload
conditions such as short circuit the device will turn off if a certain load current is reached. The short circuit
shutdown is a latch function. The device will stay off until the latch is reset by IN-Low signal. In order to reduce the
device stress the edge shaping is disabled during short circuit turn off.
Datasheet
4
Rev. 1.1, 2008-02-28
Smart Low Side Power Switch
HITFET - BTS3160D
Block Diagram
2
Block Diagram
V
S
Under
voltage
lockout
Drain
Over-
voltage
Protection
Over-
temperature
Protection
ϑ
IN /
Fault
Gate
Driving
Unit
Error
Logic
ESD
Protection
Short
circuit
Protection
GND
B loc k Diagram.emf
Figure 1
Block Diagram for the BTS3160D
Datasheet
5
Rev. 1.1, 2008-02-28
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