Data Sheet, Rev. 1.0, May 2007
BTM7740G
TrilithIC
Automotive Power
BTM7740G
Table of Contents
Table of Contents
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1
2
2.1
2.2
3
4
4.1
4.2
4.3
4.4
4.5
4.6
5
5.1
5.2
5.3
5.4
6
7
8
Overview
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin Configuration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Block Diagram
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Circuit Description
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Short Circuit Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overtemperature Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Undervoltage Lockout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Status Flag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
8
8
8
8
8
8
10
10
11
11
12
Application Information
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Package Outlines
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Revision History
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Data Sheet
2
Rev. 1.0, 2007-05-21
TrilithIC
BTM7740G
1
Features
•
•
•
•
Overview
Quad D-MOS switch driver
Free configurable as bridge or quad-switch
Optimized for DC motor management applications
Low
R
DS ON
High side: 110 mΩ typ. @ 25°C, 270 mΩ max. @ 150°C
Low side: 100 mΩ typ. @ 25°C, 230 mΩ max. @ 150°C
Peak current: typ. 8A @ 25
°C
Very low quiescent current: typ. 5
µA
@ 25
°C
Small outline, enhanced power PG-DSO-package
Operates up to 40 V
PWM frequencies up to 1 kHz
Status flag diagnosis
Short-circuit-protection
Overtemperature shut down with hysteresis
Internal clamp diodes
Under-voltage detection with hysteresis
Green Product (RoHS compliant)
AEC Qualified
•
•
•
•
•
•
•
•
•
•
•
•
PG-DSO-28-22
Description
The
BTM7740G
is part of the
TrilithIC
family containing three dies in one package: One double high-side switch
and two low-side switches. The drains of these three vertical DMOS chips are mounted on separated lead frames.
The sources are connected to individual pins, so the
BTM7740G
can be used in H-bridge- as well as in any other
configuration. Both the double high-side and the two low-side switches of the
BTM7740G
are manufactured in
SMART SIPMOS
®
technology which combines low
R
DS ON
vertical DMOS power stages with CMOS circuitry for
control, protection and diagnosis.
Type
BTM7740G
Data Sheet
Package
PG-DSO-28-22
3
Marking
BTM7740G
Rev. 1.0, 2007-05-21
BTM7740G
2
2.1
Pin Configuration
Pin Assignment
DL1
IL1
DL1
N.C.
DHVS
GND
IH1
ST
IH2
1
2
3
LS-Leadframe
4
5
6
7
HS-Leadframe
8
9
28 DL1
27 SL1
26 SL1
25 DL1
24 DHVS
23 SH1
22 SH1
21 SH2
20 SH2
19 DHVS
18 DL2
LS-Leadframe
17 SL2
16 SL2
15 DL2
DHVS 10
N.C. 11
DL2 12
IL2 13
DL2 14
Figure 1
Pin Assignment BTM7740G (Top View)
Data Sheet
4
Rev. 1.0, 2007-05-21
BTM7740G
Table 1
Pin No.
1, 3, 25, 28
2
4
6
7
8
9
11
13
16,17
20,21
22,23
26,27
Pin Definitions and Functions
Symbol Function
DL1
IL1
N.C.
GND
IH1
ST
IH2
N.C.
IL2
SL2
SH2
SH1
SL1
Drain of low-side switch1, lead frame 1
1)
Analog input of low-side switch1
not connected
Drain of high-side switches and power supply voltage,
lead frame 2
1)
Ground
Digital input of high-side switch1
Status of high-side switches; open Drain output
Digital input of high-side switch2
not connected
Drain of low-side switch2, lead frame 3
1)
Analog input of low-side switch2
Source of low-side switch2
Source of high-side switch2
Source of high-side switch1
Source of low-side switch1
5, 10, 19, 24 DHVS
12, 14, 15, 18 DL2
1) To reduce the thermal resistance these pins are direct connected via metal bridges to the lead frame.
Pins written in
bold type
need power wiring.
Data Sheet
5
Rev. 1.0, 2007-05-21
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