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| BUS IC DC/DC CONVERTER MOTOR DRIVER IC RIPPLE COUNTER DRIVER IC y Low side driver 8x, serial Low side driver 8x, parallel LCD controller I/O IC SENSOR IC SENSOR INTERFACE IC y Low side driver (8 channel, serial interface) FEATURES y y y y y y y y y y y y y Supply voltage range VDD 4.5V to 5.5V Low standby current (typical < 1A) Serial structure for direct C interfacing Cascadable Output status detection TTL - compatible input levels with threshold hysteresis 8 high current outputs (RON typ. 1.5 Y / Imax=350mA) Wide output operating voltage range (5.5 to 25.5V) Output open- and short - circuit detection Individual output short - circuit protection Thermal overload protection - 40C to + 125C operating temperature SO20w package The device provides a serial data bus for comunication with a C and 8 identical power drivers. All outputs are short circuit protected. A thermal shut-off protects the device against thermal overload. Readback capability enables fault detection as well as simple switch monitoring. 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. APPLICATION Driver for: y y y Relays Lamps / LEDs DC and stepper motors PINNING Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Name GND TEST OUT3 OUT2 OUT1 OUT0 CE SCLK SI GND GND SO VDD RESET OUT7 OUT6 OUT5 OUT4 NC 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 GND TEST OUT3 OUT2 OUT1 OUT0 CE SCLK SI GND 1 2 3 4 5 6 7 8 9 10 E910.01 PACKAGE 20 19 18 17 16 15 14 13 12 11 GND NC OUT4 OUT5 OUT6 OUT7 RESET VDD SO GND BLOCK DIAGRAM VDD VDD 8 Reset C control Logic 8 8 OVLD Prot. OUT 0...7 CE SCLK SI SO Interface 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. 56 Copyright (c) 2005 ELMOS Reproduction, in part or whole, without the prior written consent of ELMOS, is prohibited. www.elmos.de | sales@elmos.de elmos product catalog june 2005 57 |
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