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L6258EX датащи(PDF) 7 Page - STMicroelectronics |
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L6258EX датащи(HTML) 7 Page - STMicroelectronics |
7 / 32 page L6258EX Block diagram 7/32 Note: The number in parenthesis shows the relevant Power Bridge of the circuit. Pins 18, 19, 1 and 36 are connected together. 8VDD (5V) Supply voltage input for logic circuitry 9 GND Power ground connection of the internal charge pump circuit 10 VCP1 Charge pump oscillator output 11 VCP2 Input for external charge pump capacitor 12 VBOOT Overvoltage input for driving of the upper DMOS 13, 31 VS Supply voltage input for output stage. They are shorted internally 14 OUT2A Bridge output connection (2) 15 I0_2 Logic input of the internal DAC (2). The output voltage of the DAC is a percentage of the VRef voltage applied according to the truth Table 5 on page 12. 16 I1_2 See pin 15 18, 19 PWR_GND Ground connection. They also conduct heat from die to printed circuit copper 20, 35 SENSE2, SENSE1 Negative input of the transconductance input amplifier (2, 1) 21 OUT2B Bridge output connection and positive input of the tranconductance (2) 22 I3_2 See pin 15 23 I2_2 See pin 15 24 EA_OUT_2 Error amplifier output (2) 25 EA_IN_2 Negative input of error amplifier (2) 26, 28 VREF2, VREF1 Reference voltages for the internal DACs, determining the output current value. Output current also depends on the logic inputs of the DAC and on the sensing resistor value 27 SIG_GND Signal ground connection 29 EA_IN_1 Negative input of error amplifier (1) 30 EA_OUT_1 Error amplifier output (1) 32 I2_1 See pin 3 33 I3_1 See pin 3 34 OUT1B Bridge output connection and positive input of the tranconductance (1) Table 3. Pin functions (continued) Pin # Name Description |
Аналогичный номер детали - L6258EX_07 |
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Аналогичное описание - L6258EX_07 |
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