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LC5223D Datenblatt(PDF) 6 Page - Sanken electric |
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LC5223D Datenblatt(HTML) 6 Page - Sanken electric |
6 / 10 page Functional Block Diagram Functional Block Diagram Control Part LC5220 6 5 4 1 8 3 2 OPP Logic Gate Driver UVLO TSD Band Gap Reference Regulator OCP Blanking PWM Control Reference Control CC_REF OCP_REF Output Control Logic TSD UVLO PWM OCP OPP SLEEP ENABLE REG VBB REF PWM GND Current Detect CC OC SEN OUT PWM _IN SEN_IN Pin List Table Name Number Function REG 1 Internal regulator supply, provides current to internal and external circuits; connect a 0.1 μF bypass capacitor between this pin and GND. PWM 2 Input for PWM control: to use internal PWM, connect a capacitor for setting off-time; to use external PWM, connect to PWM signal source. REF 3 Reference voltage input: sets peak output current of OUT pin (internal power MOSFET) for internal PWM control, enables toggling output of OUT pin (Enable function), and enables latched shutdown of output (Sleep function) SEN 4 Output current detection: detects peak output current for internal PWM control, and detects overcurrent for OCP; connect to current detection resistor. OUT 5 Drain of internal power MOSFET. VBB 6 Supply voltage, provides power to internal circuits through internal regulator. GND 8 Ground pin. ― 7 Pin removed to increase creepage distance between high voltage pin and low voltage pin. 1 2 3 4 8 6 5 GND VBB OUT REG PWM REF SEN Pin-out Diagram LC5223D and LC5226D 6 SANKEN ELECTRIC CO., LTD. LC5223D/26D-DS Off-Line DC/DC LED Driver ICs August 8, 2012 |
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Ähnliche Beschreibung - LC5223D |
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