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LM3406HVQMHXQ1 Arkusz danych(PDF) 2 Page - Texas Instruments |
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LM3406HVQMHXQ1 Arkusz danych(HTML) 2 Page - Texas Instruments |
2 / 38 page DAP SW SW BOOT NC VOUT CS GND VIN VIN VCC VINS RON COMP DIM 1 2 3 4 5 6 7 14 13 12 11 10 9 8 LM3406, LM3406HV, LM3406HV-Q1 SNVS512E – SEPTEMBER 2008 – REVISED MARCH 2014 www.ti.com 3.1 Electrostatic Discharge Caution These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. 3.1 CONNECTION DIAGRAM LM3406 family 14-Lead Exposed Pad Plastic TSSOP Package See Package Number PWP0014A PIN DESCRIPTIONS Pin(s) Name Description Application Information 1,2 SW Switch pin Connect these pins to the output inductor and Schottky diode. 3 BOOT MOSFET drive bootstrap pin Connect a 22 nF ceramic capacitor from this pin to the SW pins. 4 NC No Connect No internal connection. Leave this pin unconnected. 5 VOUT Output voltage sense pin Connect this pin to the output node where the inductor and the first LED's anode connect. 6 CS Current sense feedback pin Set the current through the LED array by connecting a resistor from this pin to ground. 7 GND Ground pin Connect this pin to system ground. 8 DIM Input for PWM dimming Connect a logic-level PWM signal to this pin to enable/disable the power MOSFET and reduce the average light output of the LED array. Logic high = output on, logic low - output off. 9 COMP Error amplifier output Connect a 0.1 µF ceramic capacitor with X5R or X7R dielectric from this pin to ground. 10 RON On-time control pin A resistor connected from this pin to VIN sets the regulator controlled on- time. 11 VCC Output of the internal 7V linear Bypass this pin to ground with a minimum 0.1 µF ceramic capacitor with regulator X5R or X7R dielectric. 12 VINS Input voltage PWM dimming Connect this pin to the anode of the input diode to allow dimming by PWM comparator input of the input voltage 13,14 VIN Input voltage pin Nominal operating input range for this pin is 6V to 42V (LM3406) or 6V to 75V (LM3406HV, LM3406HV-Q1). DAP DAP Thermal Pad Connect to ground. Place 4-6 vias from DAP to bottom layer ground plane. 2 Submit Documentation Feedback Copyright © 2008–2014, Texas Instruments Incorporated Product Folder Links: LM3406 LM3406HV LM3406HV-Q1 |
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