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TL1466IPMRG4 Arkusz danych(PDF) 5 Page - Texas Instruments |
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TL1466IPMRG4 Arkusz danych(HTML) 5 Page - Texas Instruments |
5 / 24 page TL1466I HIGHSPEED/PRECISION SIX CHANNEL SWITCHING REGULATOR CONTROLLER SLVS262 − FEBRUARY 2000 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 Terminal Functions (Continued) TERMINAL DESCRIPTION NAME NO. DESCRIPTION MOS GATE−1 43 N-Channel MOSFET gate drive for the synchronous rectification of channel 1. The ON duty cycle for this terminal is determined by the resistor value connected to MOS DUTY (pin 24). MOS GATE−4 60 N-Channel MOSFET gate drive for the synchronous rectification of channel 4. The ON duty cycle for this terminal is determined by the resistor value connected to MOS DUTY (pin 24). NONINV INPUT−5 15 Error amplifier noninverting input terminal (channel 6). By connecting resistor and capacitor to this terminal, soft start function is accomplished increasing this terminal voltage slowly. NONINV INPUT−6 10 Error amplifier noninverting input terminal (channel 6). By connecting resistor and capacitor to this terminal, soft start function is accomplished increasing this terminal voltage slowly. OUTPUT−1 46 Output terminal to drive base for external PNP transistor of channel 1. OUTPUT−2 50 Output terminal to drive base for external PNP transistor of channel 2. OUTPUT−3 56 Output terminal to drive base for external PNP transistor of channel 3. OUTPUT−4 57 Output terminal to drive base for external PNP transistor of channel 4. OUTPUT−5 64 Output terminal to drive base for external PNP transistor of channel 5. OUTPUT−6 4 Output terminal to drive base for external PNP transistor of channel 6. OUTPUT BIAS−1 41 Resistor connection to set output sink current for OUTPUT−1 terminal (pin 46) of channel 1. OUTPUT BIAS−2 47 Resistor connection to set output sink current for OUTPUT−2 terminal (pin 50) of channel 2. OUTPUT BIAS−3 52 Resistor connection to set output sink current for OUTPUT−3 terminal (pin 56) of channel 3. OUTPUT BIAS−4 62 Resistor connection to set output sink current for OUTPUT−4 terminal (pin 57) of channel 4. OUTPUT BIAS−5 3 Resistor connection to set output sink current for OUTPUT−5 terminal (pin 64) of channel 5. OUTPUT BIAS−6 7 Resistor connection to set output sink current for OUTPUT−6 terminal (pin 4) of channel 6. OUTPUT GND−1,2,3 53 Ground for channel 1, 2, and 3 output. OUTPUT GND−4,5,6 61 Ground for channel 4, 5, and 6 output. OUTPUT VCC−1,3 42 Supply voltage for channel 1 and 3 outputs. OUTPUT VCC−2 51 Supply voltage for channel 2 output. OUTPUT VCC−4,5,6 63 Supply voltage for channel 4, 5, and 6 outputs. OVP−5,6 8 Over-voltage threshold voltage setting for output regulation voltage of channel 5 and 6. RT 21 Timing resistor connection for oscillation frequency setting. SCP 23 Capacitor connection for short-circuit protection. When voltage across COMP terminal for each channel is dropped below the specified threshold voltage, the capacitor connected between SCP and GND is charged by the constant current source (2.5 µA Typ). If the voltage reaches to 1.5 V, the timer latch circuitry is set and all channel outputs are forced to turn off. SOFT START 26 Soft start operation for channel 1 to 4. By connecting a capacitor between this terminal connected internally to error amplifier noninverting input for channel 1 to 4 and GND, soft start operation is enabled charging a capacitor with the constant current source (3 µA Typ). Moreover, the same soft start operation is also enabled at the standby release using STANDBY−3 terminal only for channel 3. STANDBY 30 ON/OFF common control input for all channels. The all channels output is turned off by adding low-level input voltage (0.4 V Max) to this terminal, and the reference voltage is also shutdown. STANDBY−3 29 ON/OFF control input for channel 3. The channel 3 output is turned off by adding low-level input voltage (0.4 V Max) to this terminal. VCC 28 Supply voltage VREF 27 1.5 V reference voltage output |
Podobny numer części - TL1466IPMRG4 |
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Podobny opis - TL1466IPMRG4 |
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