Datasheet, V 1.1, July 2007
BTS5236-2GS
Smart High-Side Power Switch
PROFET
T w o C h a n n e l s , 5 0 mΩ
Automotive Power
Smart High-Side Power Switch
BTS5236-2GS
Table of Contents
Page
1 Overview
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Pin Configuration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Pin Assignment BTS5236-2GS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Electrical Characteristics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1 Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Block Description and Electrical Characteristics
. . . . . . . . . . . . . . . . . . . . . .
4.1 Power Stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.1 Output On-State Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.2 Input Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.3 Inductive Output Clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.4 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 Protection Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.1 Over Load Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.2 Reverse Polarity Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.3 Over Voltage Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.4 Loss of Ground Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.5 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.1 ON-State Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.2 OFF-State Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.3 Sense Enable Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.4 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
10
10
10
11
13
15
15
16
16
16
17
18
19
21
22
23
5 Package Outlines BTS5236-2GS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6 Revision History
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Datasheet
2
V 1.1, 2007-09-07
Smart High-Side Power Switch
PROFET
BTS5236-2GS
Product Summary
The BTS5236-2GS is a dual channel high-side power
switch in PG-DSO-14-32 package providing
embedded protective functions.
The power transistor is built by a N-channel vertical
power MOSFET with charge pump. The device is
monolithically integrated in Smart SIPMOS
technology.
Operating voltage
Over voltage protection
On-State resistance
Nominal load current (one channel active)
Current limitation
Current limitation repetitive
Standby current for whole device with load
PG-DSO-14-32
V
bb(on)
V
bb(AZ)
R
DS(ON)
4.5 … 28 V
41 V
50 mΩ
3.2 A
23 A
6A
2.5
µA
I
L(nom)
I
L(LIM)
I
L(SCr)
I
bb(OFF)
Basic Features
•
•
•
•
•
•
•
•
•
Green product (RoHS Compliant)
Very low standby current
3.3 V and 5 V compatible logic pins
Improved electromagnetic compatibility (EMC)
Stable behavior at under voltage
Logic ground independent from load ground
Secure load turn-off while logic ground disconnected
Optimized inverse current capability
AEC qualified
Type
BTS5236-2GS
Datasheet
Package
PG-DSO-14-32
3
Marking
BTS5236-2GS
V 1.1, 2007-09-07
Smart High-Side Power Switch
BTS5236-2GS
Protective Functions
•
•
•
•
•
•
•
•
•
Reverse battery protection without external components
Short circuit protection
Overload protection
Multi-step current limitation
Thermal shutdown with restart
Thermal restart at reduced current limitation
Over voltage protection without external resistor
Loss of ground protection
Electrostatic discharge protection (ESD)
Diagnostic Functions
•
•
•
•
•
•
•
•
Enhanced IntelliSense signal for each channel
Enable function for diagnosis pins (IS1and IS2)
Proportional load current sense signal by current source
High accuracy of current sense signal at wide load current range
Open load detection in ON-state by load current sense
Over load (current limitation) diagnosis in ON-state, signalling by voltage source
Latched over temperature diagnosis in ON-state, signalling by voltage source
Open load detection in OFF-state, signalling by voltage source
Applications
•
µC
compatible high-side power switch with diagnostic feedback for 12 V grounded
loads
• Suitable for automotive and industrial applications
• All types of resistive, inductive and capacitive loads
• Suitable for loads with high inrush currents, such as lamps
• Suitable for loads with low currents, such as LEDs
• Replaces electromechanical relays, fuses and discrete circuits
Datasheet
4
V 1.1, 2007-09-07
Smart High-Side Power Switch
BTS5236-2GS
Overview
1
Overview
The BTS5236-2GS is a dual channel high-side power switch (two times 50mΩ) in
PG-DSO-14-32 package providing embedded protective functions.
The Enhanced IntelliSense pins IS1 and IS2 provide a sophisticated diagnostic feedback
signal including current sense function, over load and over temperature alerts in ON-
state and open load alert in OFF-state. The diagnosis signals can be switched on and
off by the sense enable pin SEN.
An integrated ground resistor as well as integrated resistors at each input pin (IN1, IN2,
SEN) reduce external components to a minimum.
The power transistor is built by a N-channel vertical power MOSFET with charge pump.
The inputs are ground referenced CMOS compatible. The device is monolithically
integrated in Smart SIPMOS technology.
1.1
Block Diagram
channel 1
VBB
load current
sense
clamp for
inductive load
internal
power
supply
IN1
IS1
SEN
ESD
protection
logic
gate control
&
charge pump
open load
detection
multi step
load current
limitation
OUT1
temperature sensor
over load detection
channel 2
IN2
IS2
control and protection circuit
equivalent to
channel 1
OUT2
R
GND
GND
Figure 1
Block Diagram
Datasheet
5
V 1.1, 2007-09-07
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