l9909 STMicroelectronics, l9909 Datasheet
l9909
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l9909 Summary of contents
Page 1
... Vcc S Tck 6.6% Vcc R COMP3 Vcc I 16V 56.6% Vcc 6.6% Vcc OSCILLATOR February 2001 MInidip ORDERING NUMBER: L9909 Vcc Vcc Current ratio = COMP7 Td_on COUN TER | 5 Verr| switch on START DELAY + RES TIME OUT 7.5% Vcc OP1 V =6.6% Vcc R3 Td_off STOP START ...
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... L9909 ABSOLUTE MAXIMUM RATINGS Symbol Parameter V DC battery supply voltage CC V Transient battery supply voltage (Figs. 4 and 5) CC_t V Voltage at VCOM and VFB pins in V Voltage AT ROSC pin ROSC V Voltage at COSC pin for VCC >16V COSC Voltage at COSC pin for V I Current at V ...
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... C, unless otherwise specified Test Condition 100 ROSC COSC Transients of Fig.5 Transients of Fig.5 Transients of Fig.4 ROSC 27K ; C = 10nF OSC R 27K OSC R 27K OSC L9909 Min. Typ. Max. Unit 130 s 5 130 1000 100 K 2 ...
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... L9909 ELECTRICAL CHARACTERISTICS (continued.) Pin Symbol Parameter INPUT OUTPUT TRANSER FUNCTION VCOM A Input Output Gain V VFB V Stop Motor Voltage STP COSC M+ V Start Error Voltage STR Comp 1 Input Offset Voltage off_c1 T Switch on Delay on T Switch off Delay off VCOM R Differential Input Impedance ...
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... Figure 3. L9909 Simplified Application Diagram Vcc VFB M V U709 V ERR OUT VCOM - + M- I COM Figure 4. Load Dump Transient Vcc T tr 90 60V T = 400ms Source resistance = 0.5 Ω 10s 1ms < tr < 10ms Position Feedback. As shown in Figs. 3 and 6, a positive error voltage VERR = VCOM - VFBK drives the motor with a positive M+ voltage with respect to M- ...
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... L9909 Figure 6. Recommended Application Diagram for Positive Control POWER Reverse Battery Protection Diode EMI 1KΩ Protection Network 1nF 1K Ω VCOM 1nF GROUND Figure 7. Recommended Application Diagram for Direction Control POWER Reverse Battery Protection Diode EMI Protection 20KΩ DIR Capacitors Threshold ...
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... A new 70V clamp cycle may restart only by lowering Vcc below the 19V over voltage shutdown threshold. The VFB and VCOM input pins may connect to the Vcc or lower voltage during the power supply transients of Figs. 4 and 5. L9909 7/9 ...
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... L9909 mm inch DIM. MIN. TYP. MAX. MIN. TYP. A 3.32 0.131 a1 0.51 0.020 B 1.15 1.65 0.045 b 0.356 0.55 0.014 b1 0.204 0.304 0.008 D 10.92 E 7.95 9.75 0.313 e 2.54 0.100 e3 7.62 0.300 e4 7.62 0.300 F 6.6 I 5.08 L 3.18 3.81 0.125 Z 1.52 8/9 OUTLINE AND MAX. MECHANICAL DATA 0.065 0.022 0.012 0.430 0.384 0.260 0.200 Minidip 0.150 0.060 ...
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... The ST logo is a registered trademark of STMicroelectronics 2001 STMicroelectronics – Printed in Italy – All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A. http://www.st.com L9909 9/9 ...