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LB11620T-TLM-E Datasheet(PDF) 5 Page - ON Semiconductor |
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LB11620T-TLM-E Datasheet(HTML) 5 Page - ON Semiconductor |
5 / 13 page LB11620T No.A0662-5/11 Pin Functions Pin No. Pin Description 1 GND Ground 2 RF Output current detection. The current detection resistor (Rf) voltage is sensed by the RF pin to implement current detection. The maximum output current is set by RF to be IOUT = 0.25/Rf. 7 5 3 UH VH WH Outputs (PWM outputs). These are push-pull outputs. 8 6 4 UL VL WL Outputs These are push-pull outputs. 10, 9 12, 11 14, 13 IN1+, IN1- IN2+, IN2- IN3+, IN3- Hall sensor inputs from each motor phase. The logic high state indicates that IN+ > IN-. If inputs are provided by a Hall effect sensor IC, the common-mode input range is expanded by biasing either the + or - input. 15 PWM Functions as both the PWM oscillator frequency setting pin and the initial reset pulse setting pin. Connect a capacitor between this pin and ground. 16 RD Lock (motor constrained) detection state output. This output is turned on when the motor is turning and off when the lock protection function detects that the motor has been stopped. This is an open collector output. 17 CSD Sets the operating time for the lock protection circuit. Connect a capacitor between this pin and ground. Connect this pin to ground if the lock protection function is not used. 18 PWMIN PWM pulse signal input. The output goes to the drive state when this pin is low, and to the off state when this pin is high or open. To use this pin for control, a CTL amplifier input such that the TOC pin voltage goes to the 100% duty state must be provided. 19 F/R Forward/reverse control input 20 HP Hall signal output (HP output). This provides either a single Hall sensor output or a synthesized 3-sensor output. 21 N1 Hall signal output (HP output) selection 22 EI+ CTL amplifier + (noninverting) input. The PWMIN pin must be held at the low level to use this input for motor control 23 VREG 5V regulator output (Used as the control circuit power supply. A low-voltage protection circuit is built in.) Connect a capacitor between this pin and ground for stabilization. 24 VCC Power supply. Connect a capacitor between this pin and ground to prevent noise and other disturbances from affecting this IC. |
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