l9947 STMicroelectronics, l9947 Datasheet
l9947
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l9947 Summary of contents
Page 1
... OVERCURRENT SWITCH OFF AND DIAG- NOSTIC OVERTEMPERATURE DIAGNOSTIC FORE SWITCH OFF OPEN LOAD DIAGNOSTIC DESCRIPTION The L9947 is a bus controlled power interface in- BLOCK DIAGRAM November 2001 Multiwatt 15 ORDERING NUMBER: L9947S tended for automotive applications realized in multipower BCD60II technology three DC motors and one grounded resistive load can be ...
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... L9947 ABSOLUTE MAXIMUM RATINGS Symbol V DC Supply Voltage S Single Pulse t max I Negative Supply Current S V Stabilized Supply Voltage Digital Input Voltage CSN R/WN V MODE V Digital Input/ Output Voltage D0 -D3 I Output Current Power OUT1 - OUT5 T Operating Junction Temperature j T Thermal Shutdown Junction Temperature ...
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... C;unless other- j Min. Typ. Max 100 OUT4 = 150 OUT4 = = 0; 3 OUT 17 25 Min. Typ. Max. 1.5 3.5 0.5 - Min. Typ. Max. 1.5 3.5 0.5 -10 10 -10 10 Min. Typ. Max. 0.6 4 L9947 Unit Unit Unit Unit V V 3/13 ...
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... L9947 ELECTRICAL CHARACTERISTICS (continued) OUTPUTS: Symbol Parameter R On Resistance to Supply or ON OUT1 GND R On Resistance to Supply or ON OUT2 GND R On Resistance to Supply or ON OUT3 GND R On Resistance to Supply or ON OUT4 GND R On Resistance to Supply ON OUT5 |I | Output Current Limitation to OUT1 Supply or GND ...
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... APPLICATION CIRCUIT DIAGRAM Fogure 1: Recommended Application Circuit. FUNCTIONAL DESCRIPTION The L9947 is a power interface circuit designed for a multiplex system controlled by a parallel C bus. The bus consists of four bidirectional data wires and three control wires read/write (R/WN), mode (MODE) and chip select (CSN). ...
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... L9947 Output Activating/write Table 1 Status CSN R/WN MODE Notes: Where CSN = 0 the device is (for t will lead to the apprpriate output response. Deselecting the circuit (CSN Diagnostic / read ...
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... A. A high - low - signal at the CSN - wire is mandatory to control the outputs. There is no un- dervoltage detection level for the supply voltage the standby CC VS implemented. The VCC should be supplied from the same voltage supply as the driver of the D0 -D3 pins (eg. C). L9947 goes up, the device CC 7/13 ...
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... Power Interface as slave. That means: the starts the communication between the Power In- terface and itself with low transition at the CSN line. CSN = 0, R/WN= 0 the L9947 reads the data at the bus and execute the command as shown in tables 1,3,4 (write mode). The high slope of the CSN stores the last command and execute it fur- ther ...
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... Source) increases above 0.4V After 100 s typ. the output is switched OFF and the corresponding overcurrent bit (OVC1 or OVC2) will be set. The outputs can be activated again with the next input data word. Parameter L9947 . S Min. Typ. Max. Unit 20 90* ...
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... With this current the influence of leakage currents and oxidized contacts is eliminated. Standby (TABLE!; STATUS 2): The L9947 is set in standby mode with the posi- tive edge of CSN when all other inputs are low. All latched data will be cleared and the inputs and outputs are in tristate. ...
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... Figure 5: Supply Current Path at V Interruption CC L9947 11/13 ...
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... L9947 mm DIM. MIN. TYP. MAX 2. 0.49 0.55 0.019 F 0.66 0.75 0.026 G 1.02 1.27 1.52 0.040 G1 17.53 17.78 18.03 0.690 H1 19.6 0.772 H2 20.2 L 21.9 22.2 22.5 0.862 L1 21.7 22.1 22.5 0.854 L2 17.65 18.1 0.695 L3 17.25 17.5 17.75 0.679 L4 10.3 10.7 10.9 0.406 L7 2.65 2.9 0.104 M 4.25 4.55 4.85 0.167 M1 4.63 5.08 5.53 0.182 S 1.9 2.6 0.075 S1 1.9 2.6 0.075 Dia1 3.65 3.85 0.144 12/13 inch MIN. TYP. MAX. 0.197 0.104 0.063 0.039 0.022 0.030 0.050 0.060 0.700 0.710 0.795 ...
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... STMicroelectronics – Printed in Italy – All Rights Reserved Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. The ST logo is a registered trademark of STMicroelectronics STMicroelectronics GROUP OF COMPANIES http://www.st.com L9947 13/13 ...