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SA305 Folha de dados(PDF) 2 Page - Cirrus Logic |
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SA305 Folha de dados(HTML) 2 Page - Cirrus Logic |
2 / 6 page APEX MICROTECHNOLOGY CORPORATION • 5980 NORTH SHANNON ROAD • TUCSON, ARIZONA 85741 • USA • APPLICATIONS HOTLINE: 1 (800) 546-2739 2 PR EL IM IN AR Y PIN DESCRIPTIONS Pin # Pin name Description 10,21 Vs/VPWR High voltage supply (12V-60V) 17 Vdd Logic supply (5V) 22 OutA Half bridge output 13 OutB Half bridge output 2 OutC Half bridge output 1,23 PGND Power ground, high current ground return path of the bridge outputs 11 SGND Analog and logic circuits ground 19 DISABLE Disable logic Input, CMOS. When high disables all six output MOSFETs independent of the Control regis- ters. 18 Warning Output pin goes high at Tj > 135°C. 8 FAULT The Fault output is raised under the following conditions: a) Short-Circuit and Over Current condition. b) High Temperature condition. c) High Voltage Supply Vs < 12V. This can be used as an interrupt to the microcontroller. It will be reset after status data has been read by the microcontroller. A FAULT will also disable the outputs of the device. 16 PWM_HA goes high in order to indicate the Pchannel of output A is to be turned on. 15 PWM_LA goes high in order to indicate the Nchannel of output A is to be turned on. 12 PWM_HB goes high in order to indicate the Pchannel of output B is to be turned on. 14 PWM_LB goes high in order to indicate the Nchannel of output B is to be turned on. 7 PWM_HC goes high in order to indicate the Pchannel of output C is to be turned on. 5 PWM_LC goes high in order to indicate the Nchannel of output C is to be turned on. 20 IMON_A Current monitor output, approximate current 1/4000 of Phase A current 3 IMON_B Current monitor output, approximate current 1/3600 of Phase B current 4 IMON_C Current monitor output, approximate current 1/3700 of Phase C current 9 OFF Disables all Fault Mechanisms when pulled HIGH All inputs are CMOS levels. Inputs can accept CMOS levels as low as 3.3 volts PIN DESCRIPTIONS SA305 |
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