D a t a S h e e t , V 1 .0 , D e c e m b e r 2 0 0 5
BTS 6123P
Smart High-Side Power Switch
PROFET
One Channel, 10 m
Ω
Automotive Power
N e v e r
s t o p
t h i n k i n g .
Smart High-Side Power Switch
BTS 6123P
1 Overview
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.1 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.2 Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2 Pin Configuration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.1 Pin Assignment BTS 6123P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.2 Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3 Electrical Characteristics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.1 Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
4 Block Description and Electrical Characteristics
. . . . . . . . . . . . . . . . . . . . . . .10
4.1 Power Stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
4.1.1 Input Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.1.2 Output On-State Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1.3 Output Inductive Clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1.4 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.2 Protection Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
4.2.1 Over-Load Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.2.2 Short circuit impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.2.3 Reverse Polarity Protection - ReversaveTM . . . . . . . . . . . . . . . . . . . . . . 18
4.2.4 Over-Voltage Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.2.5 Loss of Ground Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.2.6 Loss of Vbb Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.2.7 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.3 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
4.3.1 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5 Package Outlines BTS 6123P
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
6 Revision History
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Data Sheet
2
V1.0, 2005-12-15
Smart High-Side Power Switch
PROFET
BTS 6123P
Product Summary
The BTS 6123P is a one channel high-side power
switch in P-TO-220-7-230 package providing
embedded protective functions including
ReverSave
™
.
The power transistor is built by a N-channel vertical
power MOSFET with charge pump. The design is
based on Smart SIPMOS chip on chip technology.
P-TO-220-7-230
Operating voltage
Over-voltage protection
On-State resistance
Load current (ISO)
Current limitation
Stand-by current for whole device with load
V
bb(on)
V
ON(CL)
R
DS(ON)
5.5 .. 24 V
39 V
10 mΩ
33 A
55 A
6 µA
I
L(ISO)
I
L6(SC)
I
bb(OFF)
Basic Features
•
•
•
•
Very low standby current
Current controlled input pin
Improved electromagnetic compatibility (EMC)
Fast demagnetization of inductive loads
Type
BTS 6123P
Data Sheet
Ordering Code
SP000092063
3
Package
P-TO-220-7-230
V1.0, 2005-12-15
Smart High-Side Power Switch
BTS 6123P
Protective Functions
•
•
•
•
•
•
•
•
•
•
ReverSave
™
, channel switches on in case of reverse polarity
Reverse battery protection without external components
Short circuit protection with latch
Over-load protection
Multi-step current limitation
Thermal shutdown with restart
Over-voltage protection (including load dump)
Loss of ground protection
Loss of
V
bb
protection (with external diode for charged inductive loads)
Electrostatic discharge protection (ESD)
Diagnostic Functions
• Proportional load current sense (with defined fault signal in case of overload
operation, over temperature shutdown and/or short circuit shutdown)
• Open load detection in ON-state by load current sense
Applications
• µC compatible high-side power switch with diagnostic feedback for 12 V grounded
loads
• All types of resistive, inductive and capacitive loads
• Most suitable for loads with high inrush currents, so as lamps
• Replaces electromechanical relays, fuses and discrete circuits
Data Sheet
4
V1.0, 2005-12-15
Smart High-Side Power Switch
BTS 6123P
Overview
1
Overview
The BTS 6123P is a one channel high-side power switch (10 mΩ) in P-TO-220-7-230
power package providing embedded protective functions including ReverSave
TM
.
ReverSave
TM
is a protection feature that causes the power transistors to switch on in
case of reverse polarity. As a result, the power dissipation is reduced.
The BTS 6123P has a current controlled input and offers a diagnostic feedback with load
current sense. The design is based on Smart SIPMOS chip on chip technology.
1.1
Block Diagram
logic IC
voltage sensor
over
temperature
R
bb
base chip
V
bb
T
IN
ESD
clamp for
inductive load
current
limitation
I
IN
V
IS
V
IN
IS
I
IS
R
IS
driver
logic
gate control
&
charge pump
load current
sense
OUT
I
L
LOAD
Overview .emf
forward voltage drop detection
Figure 1
Block Diagram
Data Sheet
5
V1.0, 2005-12-15
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