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LM5032MTC 数据表(PDF) 2 Page - National Semiconductor (TI) |
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LM5032MTC 数据表(HTML) 2 Page - National Semiconductor (TI) |
2 / 22 page Connection Diagram Top View 20135002 16-Lead TSSOP Ordering Information Order Number Package Type NSC Package Drawing Supplied As LM5032MTC TSSOP-16 MTC-16 92 Units per Rail LM5032MTCX TSSOP-16 MTC-16 2500 Units on Tape and Reel Pin Description PIN NAME DESCRIPTION APPLICATIONS INFORMATION 1 VIN Input Supply Input to the startup regulator. The operating input range is 13V to 100V with transient capability to 105V. 2 COMP1 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 5K Ω pull-up resistor to +5.0V provides bias current to an opto-coupler transistor. 3 CS1 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 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 0.5V shuts off Controller 1. 5 UVLO VIN Under-Voltage Lockout An external resistor divider sets the input voltage threshold to enable the LM5032. The UVLO comparator reference voltage is 1.25V. A switched 20 µA current source provides adjustable UVLO hysteresis. The UVLO pin voltage also controls the maximum duty cycle as described in the Functional Description section. 6 VCC Start-up regulator output Output of the 7.7V high voltage start-up regulator. Current limit is a minimum of 19 mA. 7 OUT1 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. www.national.com 2 |
类似零件编号 - LM5032MTC |
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类似说明 - LM5032MTC |
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