TrilithIC™
Target Data
Overview
Features
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Quad switch driver
Free configurable as bridge or quad-switch
Optimized for DC motor management applications
Ultra low
R
DS ON
@ 25
°C:
High-side switch: typ. 35 mΩ,
Low-side switch: typ. 15 mΩ
Very high peak current capability
Very low quiescent current
Space- and thermal optimized SMD-Power-Package
Load and GND-short-circuit-protected
Operates up to 40 V
2-Bit status flag diagnosis
Overtemperature shut down with hysteresis
Short-circuit detection and diagnosis
Open-load detection and diagnosis
C-MOS compatible inputs
Internal clamp diodes
Isolated sources for external current sensing
Over- and under-voltage detection with hysteresis
Ordering Code
on request
BTS 780
P-TO263-15-1
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Type
BTS 780
Description
Package
P-TO263-15-1
The
BTS 780
is a
TrilithIC
contains one double high-side switch and two low-side
switches in
one P-TO263-15-1.
“Silicon instead of heatsink”
becomes true
The ultra low
R
DS ON
of this device avoids powerdissipation. It saves costs in mechanical
construction and mounting and increases the efficiency.
The high-side switches are produced in the
SIEMENS SMART SIPMOS
®
technology. It
is fully protected and contains the signal conditioning circuitry for diagnosis (the
comparable standard high-side product is the
BTS 734L1).
Semiconductor Group
1
1998-02-01
BTS 780
For minimized
R
DS ON
the two low-side switches are produced in the
SIEMENS S-Fet
logic level technology (the comparable standard product is the
BUZ 100SL).
Each drain of these three chips is mounted on separated leadframes (see pin
configuration). The sources of all four power transistors are connected to separate pins.
So the
BTS 780
can be used in H-Bridge configuration as well as in any other switch
configuration.
Moreover, it is possible to add current sense resistors.
All these features open a broad range of automotive and industrial applications.
Semiconductor Group
2
1998-02-01
BTS 780
Molding
Compound
SL1
SL1
GL1
GND
GH1
ST1
SH1
1
2
3
4
5
6
7
16
GND
GH2
ST2
SH2
SL2
SL2
GL2
8
9
10
11
12
13
14
AEP02224
Heat-Slug 1
17
DL1
Heat-Slug 2
DHVS
Heat-Slug 3
15
DL2
Figure 1
Pin Configuration
(top view)
Semiconductor Group
3
1998-02-01
BTS 780
Pin Definitions and Functions
Pin No.
1, 2
3
4, 8
5
6
7
9
10
11
12, 13
14
15
16
17
Symbol
SL1
GL1
GND
GH1
ST1
SH1
GH2
ST2
SH2
SL2
GL2
DL2
DHVS
DL1
Function
Source of low-side switch 1
Gate of low-side switch 1
Ground
Gate of high-side switch 1
Status of high-side switch 1; open Drain output
Source of high-side switch 1
Gate of high-side switch 2
Status of high-side switch 2; open Drain output
Source of high-side switch 2
Source of low-side switch 2
Gate of low-side switch 2
Drain of low-side switch 2
Heat-Slug 3 or Heat-Dissipator
Drain of high-side switches and power supply voltage
Heat-Slug 2 or Heat-Dissipator
Drain of low-side switch 1
Heat-Slug 1 or Heat-Dissipator
Bold type: Pin needs power wiring
Semiconductor Group
4
1998-02-01
BTS 780
DVHS
16 Heat-Slug 2
ST1
6
DST1
C6V1
Diagnosis
ST2
10
DST2
C6V1
Biasing and Protection
GH1
5
R
I1
3.5 k
Ω
GH2
9
R
I2
3.5 k
Ω
GND
4, 8
Driver
IN OUT
1 2 1 2
DI1
C6V1 0 0 L L
0 1 L H
1 0 H L
1 1 H H
DI2
C6V1
R
O1
10 k
Ω
R
O2
10 k
Ω
11
SH2
Heat-Slug 3 15
7
Heat-Slug 1 17
DL2
SH1
DL1
GL1
3
GL2
14
1, 2
SL1
12, 13
SL2
AEB02225
Figure 2
Block Diagram
Semiconductor Group
5
1998-02-01
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