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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LM5032 датащи(PDF) 3 Page - Texas Instruments |
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LM5032 датащи(HTML) 3 Page - Texas Instruments |
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3 / 36 page  4 3 2 1 5 6 7 8 VIN COMP1 CS1 SS1 UVLO VCC OUT1 GND1 GND2 OUT2 RES SS2 CS2 COMP2 DCL RT/SYNC 9 10 11 12 13 14 15 16 LM5032 www.ti.com SNVS344B – MARCH 2005 – REVISED DECEMBER 2014 5 Pin Configuration and Functions PW Package 16-Pin TSSOP Top View Pin Functions PIN I/O DESCRIPTION APPLICATIONS INFORMATION NO. NAME 1 VIN P Input Supply Input to the startup regulator. The operating input range is 13 V to 100 V with transient capability to 105 V. 2 COMP1 I PWM Control, Controller 1 The COMP1 input provides voltage feedback to the PWM comparator inverting input of Controller 1 through a 3:1 divider. The OUT1 duty cycle increases as the COMP1 voltage increases. An internal 5-K Ω pull-up resistor to 5.0-V provides bias current to an opto-coupler transistor. 3 CS1 I Current Sense Input, Controller 1 Input for current mode control and the current limit sensing. If the CS1 pin exceeds 0.5V the OUT1 pulse is terminated producing cycle-by-cycle current limiting. External resistance connected to CS1 will adjust (increase) PWM slope compensation. This pin's voltage must not exceed 1.25V. 4 SS1 I Soft-start, Controller 1 An internal 50-µA current source charges an external capacitor to set the soft-start rate. During a current limit restart sequence, the internal current source is reduced to 1 µA to increase the delay before retry. Forcing SS1 below 0.5 V shuts off Controller 1. 5 UVLO I VIN Under-Voltage Lockout An external resistor divider sets the input voltage threshold to enable the LM5032. The UVLO comparator reference voltage is 1.25 V. A switched 20-µA current source provides adjustable UVLO hysteresis. The UVLO pin voltage also controls the maximum duty cycle as described in the Feature Description section. 6 VCC P Start-up regulator output Output of the 7.7-V high-voltage start-up regulator. Current limit is a minimum of 19 mA. 7 OUT1 O Main Gate Driver, Controller 1 Gate driver output to the primary side switch for Controller 1. OUT1 swings between VCC and GND1 at a frequency equal to half the oscillator frequency. 8 GND1 G Ground, Controller 1 Ground connection for Controller 1 including gate driver, PWM controller, soft-start and support functions. 9 GND2 G Ground, Controller 2 Ground connection for Controller 2 including the gate driver, PWM controller and soft-start. 10 OUT2 O Main Gate Driver, Controller 2 Gate driver output to the primary side switch for Controller 2. OUT2 swings between VCC and GND2 at a frequency equal to half the oscillator frequency. 11 RES I Hiccup mode restart adjust An external capacitor sets the time delay before forced restart during a sustained period of cycle-by-cycle current limiting. The hiccup mode comparator threshold is 2.55 V. Copyright © 2005–2014, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM5032 |
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