E910.01 Datasheet, PDF (1/1 Pages) ELMOS Semiconductor AG – Low side driver (8 channel, serial interface)

BUS IC
DC/DC CONVERTER
MOTOR DRIVER IC
RIPPLE COUNTER
ÿ Low side driver (8 channel, serial interface)
FEATURES
ÿ Supply voltage range VDD 4.5V to 5.5V
ÿ Low standby current (typical < 1µA)
ÿ Serial structure for direct µC interfacing
ÿ Cascadable
ÿ Output status detection
ÿ TTL - compatible input levels with threshold
hysteresis
ÿ 8 high current outputs
(RON typ. 1.5 Ý / I_max=350mA)
ÿ Wide output operating voltage range
(5.5 to 25.5V)
ÿ Output open- and short - circuit detection
ÿ Individual output short - circuit protection
ÿ Thermal overload protection
ÿ – 40°C to + 125°C operating temperature
ÿ SO20w package
APPLICATION
Driver for:
ÿ Relays
ÿ Lamps / LEDs
ÿ DC and stepper motors
DESCRIPTION
The IC is developed for automotive applications and can also
be used in several other application areas. The IC is well suited
to drive relays, lamps, bus systems etc. with medium power
consumption.
The device provides a serial data bus for comunication with a µC
and 8 identical power drivers. All outputs are short circuit pro-
tected. A thermal shut-off protects the device against thermal
overload. Readback capability enables fault detection as well as
simple switch monitoring.
BLOCK DIAGRAM
VDD
VDD
8
Reset
control ₈
µC
Logic
OVLD
Prot.
CE
SCLK
Interface
SI
SO
8
OUT
0...7
56
DRIVER IC
ÿ Low side driver 8x, serial
Low side driver 8x, parallel
LCD controller
I/O IC
SENSOR IC
SENSOR INTERFACE IC
PINNING
Pin Name
1 GND
2 TEST
3 OUT3
4 OUT2
5 OUT1
6 OUT0
7 CE
8 SCLK
9 SI
10 GND
11 GND
12 SO
13 VDD
14 RESET
15 OUT7
16 OUT6
17 OUT5
18 OUT4
19 NC
20 GND
Description
Ground
Connect to ground
Open - drain low - side driver
Open - drain low - side driver
Open - drain low - side driver
Open - drain low - side driver
Open - drain low - side driver
Chip enable - active low (output data is read
back on the falling edge of the pulse and only
after 8x n falling edges on SCLK is the output
data clocked on the next rising edge)
Serial clock input
Serial data input
Ground
Ground
Serial data output (high impendence when CE = High)
Supply voltage
External reset - active low (= internal power on reset)
Open - drain low - side driver
Open - drain low - side driver
Open - drain low - side driver
Not connected
Ground
E910.01
PACKAGE
GND
1
TEST
2
OUT3
3
OUT2
4
OUT1
5
OUT0
6
CE
7
SCLK
8
SI
9
GND
10
20
GND
19
NC
18
OUT4
17
OUT5
16
OUT6
15
OUT7
14
RESET
13
VDD
12
SO
11
GND
Note ELMOS Semiconductor AG (below ELMOS) reserves the right to make changes to the product contained in this publication without notice. ELMOS assumes no responsibility for the use of any
circuits described herein, conveys no licence under any patent or other right, and makes no representation that the circuits are free of patent infringement. While the information in this publication
has been checked, no responsibility, however, is assumed for inaccuracies. ELMOS does not recommend the use of any of its products in life support applications where the failure or malfunction of
the product can reasonably be expected to cause failure of a life-support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications.
Copyright © 2005 ELMOS Reproduction, in part or whole, without the prior written consent of ELMOS, is prohibited.
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elmos product catalog june 2005
57