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LB11690H Datasheet(PDF) 6 Page - Sanyo Semicon Device |
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LB11690H Datasheet(HTML) 6 Page - Sanyo Semicon Device |
6 / 19 page No. 7543-6/19 LB11690, 11690H Pin Functions *: Items in parentheses refer to the LB11690H. Pin name Pin No. Pin description GND 1 (2) Ground RFGND 2 (3) Ground sensing pin. Connect the ground side of the low-resistance resistor RF connected to the RF pin to this pin. RF 3 (4) Output current detection pin. Connect the low-resistance resistor RF between this pin and ground. The output current will be limited to a value determined by the equation IOUT = 0.1/RF. (Current limiter circuit) WL 4 (5) VL 7 (9) Low side n-channel power FET gate drive output UL 10 (12) WOUT 5 (7) VOUT 8 (10) High side n-channel power FET source voltage detection UOUT 11 (13) WH 6 (8) VH 9 (11) High side n-channel power FET gate drive output UH 12 (14) IN1 13 (16) IN2 14 (17) Hall sensor signal inputs. Insert capacitors between these pins and ground for stabilization. IN3 15 (18) RES 16 (20) Reset input. Insert a resistor between this pin and the V5 pin, and a capacitor between this pin and ground. EI+ 17 (21) Integrating amplifier noninverting input EI– 18 (22) Integrating amplifier inverting input TOC 19 (23) PWM waveform comparison (integrating amplifier output) PWM 20 (24) PWM oscillator frequency setting. Insert a capacitor between this pin and ground. FV 21 (25) Hall sensor signal one-shot multi-pulse output RC 22 (26) Hall sensor signal one-shot multi-pulse amplitude setting. Insert a resistor between this pin and the V5 pin, and a capacitor between this pin and ground. HP 23 (27) Hall sensor signal three-phase synthesized output (open collector output) CP2 24 (28) Charge pump capacitor connections. Connect a capacitor between pins CP1 and CP2. CP1 25 (29) LVS 26 (30) Undervoltage protection voltage detection. To detect a voltage of 5 V or over, connect a zener diode in series to set the detection voltage. V5 27 (32) 5 V power supply (control circuit power supply). Insert a capacitor between this pin and ground. V12 28 (33) 12 V power supply (UL, VL, and WL output block power supply). Insert a capacitor between this pin and ground. VCC 29 (35) Power supply. Insert a capacitor between this pin and ground for power supply stabilization. VB 30 (1) Charge pump output (UH, VH, and WH output block power supply). Insert a capacitor between this pin and VCC. (FRAME) — The FRAME pin is connected to the IC lower surface metal frame. Both should be left electrically open during operation. (6) (15) (NC) (19) (31) These pins are not connected to the IC internally in the package, and thus may be used for wiring connections. (34) (36) |
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