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THMC41SOPD Datasheet(PDF) 3 Page - Texas Instruments |
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THMC41SOPD Datasheet(HTML) 3 Page - Texas Instruments |
3 / 17 page THMC40, THMC41 VARIABLE SPEED 12-VDC BRUSHLESS FAN MOTOR DRIVERS SLIS097 – MARCH 2000 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 Terminal Functions TERMINAL I/O DESCRIPTION NAME NO. I/O DESCRIPTION AGND 9 I IC analog ground and substrate connection CP 3 I External charge pump capacitor COSC 1 I/O External oscillator capacitor H– 12 I Hall sensor negative input H+ 13 I Hall sensor positive input NC 6, 8 – No connection PGND 7 I Power ground for high-side charge pump PHA 11 O Low-side driver for phase A motor winding PHB 10 O Low-side driver for phase B motor winding RD 2 O Open-drain locked rotor detection output—THMC41 only TACH 2 O Open-drain tachometer output signal—THMC40 only VOUT 5 O High-side PWM driver output for motor windings VPWR 4 I Supply voltage input VPWM 14 I PWM duty cycle control voltage input absolute maximum ratings over operating case temperature range (unless otherwise noted)† (see Note 1) Supply voltage input, VPWR 18 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . High-side driver, PWM output voltage, VOUT 18 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Low-side drivers, phase A and B output, VPHA, VPHB 40 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hall sensor amplifier input voltage, VH+, VH– 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PWM duty cycle control input voltage, VPWM 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Open-drain tachometer output voltage (THMC40), VTACH, or open-drain RD output voltage (THMC41), VRD 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oscillator capacitor voltage, VCOSC 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Charge pump capacitor voltage, VCP 30 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous high-side PWM output source/sink current, IOUT 1.5 A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous low-side PWM output sink current, IPHA, IPHB 1.5 A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Junction-to-case thermal resistance, RθJC 26.9 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Junction-to-ambient thermal resistance , RθJA (see Note 2) 122.3 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous power dissipation at 25 °C , PD (see Note 3) 1022 mW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power derating factor above 25 °C ambient , PDERATING (see Note 4) 8.18 mW/ °C . . . . . . . . . . . . . . . . . . . . . Operating case temperature range, TC –30 °C to 80°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range, Tstg –55 °C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum junction temperature, TJ 150 °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lead temperature (soldering, 10 sec), TLEAD 300 °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. All voltage values are with respect to GND. 2. JEDEC low-K board with 0 LFM airflow 3. 150 °C maximum junction temperature, JEDEC low-K board with 0 LFM airflow 4. 80 °C maximum ambient and 150°C maximum junction temperature |
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