L9904 STMicroelectronics, L9904 Datasheet
L9904
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L9904 Summary of contents
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... DG Thermal shutdown V S1TH DIR R DIR VCC R PWM 3 PWM V S2TH 6 PR Timer ISO-Interface 0.5 • VCC SO20 Part Number L9904 L9904TR Tape & Reel DESCRIPTION Charge pump 13 CB1 12 GH1 GL1 R GL1 18 GL2 R GL2 GH2 16 CB2 GND L9904 Package SO20 REV. 4 1/17 ...
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... L9904 Table 2. Pin Function N° Pin 1 ST Open Drain Switch for Stepup converter 2 DG Open drain diagnostic output 3 PWM PWM input for H-bridge control 4 EN Enable input 5 DIR Direction select input for H-bridge control 6 PR Programmable cross conduction protection time 7 RX ...
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... Table 4. Thermal Data Symbol T Operating junction temperature J T Junction temperature thermal shutdown threshold JSD T Junction thermal shutdown hysteresis JSDH R th j-amb Thermal resistance junction to ambient 1. see application note 110 for SO packages. . Parameter Parameter 1) L9904 Value Unit -0 -100 ± ...
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... L9904 Table 5. Electrical Characteristcs = HIGH, -40°C ≤ T (8V < V < 20V GND and currents are assumed positive, when current flows into the pin Symbol Parameter Supply (VS) V Overvoltage disable HIGH VS OVH threshold V VS OVh Overvoltage threshold hysteresis V Undervoltage disable HIGH VS UVH threshold ...
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... LOW; I =10mA LOW 13.5V; Fig External loads at K-line 510Ω pull 2.2nF to GND 13.5V LOW V > 0.55 · 13. 20V VS L9904 Min. Typ. Max. Unit 3 kΩ 4.5 5 kΩ Ω µs 0.5 µs 0.5 -20V 0.45 · 0.55 · 0.025· ...
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... L9904 Table 5. Electrical Characteristcs (continued) = HIGH, -40°C ≤ T (8V < V < 20V GND and currents are assumed positive, when current flows into the pin Symbol Parameter I Charging current Charging time Charge pump frequency CP Drivers for external highside power MOS V Bootstrap voltage CB1 ...
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... 0.1µF CBX C = 150pF 10kΩ Fig 13. 0.1µF CBX C = 4.7nF GHX C = 4.7nF GLX R = 10kΩ; PR < 10V 5.2V 50mA ST L9904 Min. Typ. Max. Unit µs 0.7 1 1.3 500 ns 500 ns µs 0.7 1 1.3 500 ns µs 1 µs 1 µs 1 µ µ Ω 100 ...
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... L9904 Figure 4. Timing of the ISO-interface V TX 0.3 • 0.55 • 0.45 • RXL 0.3 • ain tr ansis tor at K-pin Figure 5. Timing of the drivers for the external MOS regarding the inputs DIR and PWM PWM or 50% DIR 80% 20% GHX 80% 20% GLX 8/17 0.7 • ...
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... Figure 6. I(V) characteristics of the K-Line for TX = HIGH and VVS=13.5V Figure 7. Driving sequence EN DIR PWM GL2 GH2 GL1 Note: Before standby mode (EN=low) a braking phase is mandatory to discharge GH1 the stored energy of the motor. IK [mA] 0.2 0.1 0.0 -0.1 -0.2 -0.3 -0.4 -0.5 - braking L9904 9/17 ...
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... L9904 Figure 8. Charging time of an external capacitor of 10nF connected to CP pin =13.5V VS voltage [ Figure 9. Application Circuit Diagram V BAT Voltage ST 1 Regulator DIR 5 µC PWM GND 10/17 Charging time of a 10nF load time [ms] Reference VCC - BIAS + Charge V STH pump = f ST VCC Overvoltage ...
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... FUNCTIONAL DESCRIPTION 3.1 General The L9904 integrated circuit (IC) is designed to control four external N-channel MOS transistors in H-Bridge con- figuration for DC-motor driving in automotive applications. It includes an ISO9141 compatible interface. A typical application is shown in fig.9. 3.2 Voltage supply The IC is supplied via an external reverse battery protection diode to the V range is down to 8V ...
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... L9904 3.4 Control inputs (EN, DIR, PWM) The cmos level inputs drive the device as shown in fig.7 and described in the truth table. The device is activated with enable input HIGH signal. For enable input floating (not connected) or VEN=0V the device is in standby mode. When activating the device a wake-up time of 50µs is recommended to stabilize the internal supplies ...
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... The transistor remains in off condition, the diagnostic output goes LOW SCd and resistor and V for longer than S1TH S2TH , a minimum gate source voltage DSON of the driver. DSON at the PR pin. The capacitor C PR discharges the capacitor C PR should be choosen between 100pF PR L9904 . The SCd . The DSON is charged . PR 13/17 ...
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... L9904 · C CCP 0.69 · R CCP 3.14 ISO-Interface The ISO-Interface provides the communication between the micro controller and a serial bus with a baud rate up to 60kbit/s via a single wire which is V the open drain K-output. The K output can be connected to a serial bus with a pull up resistor to V ...
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... Mold flash, protusions or gate burrs shall not exceed 0.15mm per side. inch MIN. TYP. MAX. 0.093 0.104 0.004 0.012 0.013 0.200 0.009 0.013 0.496 0.512 0.291 0.299 0.050 0.394 0.419 0.010 0.030 0.016 0.050 0.004 OUTLINE AND MECHANICAL DATA SO20 0016022 D L9904 15/17 ...
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... L9904 Table 7. Revision History Date Revision October 2002 January 2004 May 2004 October 2005 16/17 1 First Issue on ST-Press DMS 2 Migration from ST-Press to EDOCS DMS 3 Change Maturity from Product Preview to Final. 4 Inserted on pag 12 AN2229 ref. Description of Changes ...
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