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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TPS658620ZQZT датащи(PDF) 70 Page - Texas Instruments |
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TPS658620ZQZT датащи(HTML) 70 Page - Texas Instruments |
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70 / 104 page  3.58.2 DIG_PWM, DIG_PWM2 DRIVERS ON DPWM_SET[6:0] T (ms) = , if DPWM_SET[6:0] 126 32 £ (3-7) TPS658620 Advanced Power Management Unit SLVS993 – OCTOBER 2009 www.ti.com The PWM frequency and duty cycle are defined by the PWM register settings as shown below. Table 3-42. PWM Settings PWM_F[2:0) FREQUENCY(kHz) PWM_D[3:0] DUTY CYCLE (%) PWM_D[3:0] DUTY CYCLE (%) 000 23.4 0000 6.25 1000 56.25 001 11.7 0001 12.5 1001 62.5 010 6.7 0010 18.75 1010 68.75 011 4.5 0011 25 1011 75 100 3.0 0100 31.25 1100 81.25 101 2.3 0101 37.5 1101 87.5 110 1.5 0110 43.75 1110 93.75 111 0.75 0111 50 1111 100 The TPS658620 provides two push-pull outputs with programmable duty cycle at pins DIGPWM and DIGPWM2. The DIG_PWM register controls the DIGPWM pin duty cycle, register DIG_PWM2 controls the DIGPWM2 pin duty cycle. The DIG_PWM functions and register bit controls detailed below apply to the DIGPWM2 pin and DIG_PWM2 register as well. Both registers default to 0x00 upon power-up. Table 3-43. DIGPWM, DIGPWM2 Control DIG_PWM [Addr 0x5A] Default to 0 Bit Number B7 B6 B5 B4 B3 B2 B1 B0 Bit Name DPWM_MODE DPWM_SET[6] DPWM_SET[5] DPWM_SET[4] DPWM_SET[3] DPWM_SET[2] DPWM_SET[1] DPWM_SET[0] DIG_PWM2 [Addr 0x5C] Default to 0 Bit Number B7 B6 B5 B4 B3 B2 B1 B0 Bit Name DPWM2_MODE DPWM2_SET[6] DPWM2_SET[5] DPWM2_SET[4] DPWM2_SET[3] DPWM2_SET[2] DPWM2_SET[1] DPWM2_SET[0] Mode 0 (DPWM_MODE is 0): The pulse width modulated output is a single PWM pulse of the selected duty cycle, with a nominal 250Hz repetition rate. The DIG_PWM register bits [6:0] sets the pulse width value as shown below: TON(ms) = Always On, if DPWM_SET[6:0] = 127) Mode 1 (DPWM_MODE is 1): The bit DPWMx_SET[6] of the DIG_PWMx register selects the pulse time range, bits DIG_PWMx[5:3] set the ON times and bits DIG_PWMx[2:0] set the off times. Table 3-44. Digital PWM Settings, DPWM_MODE=1 DPWMx_SET[ 6] = 0 DPWMx_SET[ 6] = 1 OFF TIME ON TIME DIG_PWMx[5:3] ON TIME (s) DIG_PWMx[2:0] DIG_PWMx[5:3] DIG_PWMx[2:0] OFF TIME (ms) (ms) (ms) 000 31 000 0.49 000 5 000 40 001 61 001 1.01 001 10 001 60 010 92 010 1.50 010 15 010 80 011 122 011 2.01 011 20 011 100 100 153 100 2.50 100 30 100 120 101 183 101 2.99 101 40 101 140 110 214 110 4.00 110 50 110 160 111 244 111 5.00 111 60 111 180 DETAILED DESCRIPTION 70 Submit Documentation Feedback |
Аналогичный номер детали - TPS658620ZQZT |
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Аналогичное описание - TPS658620ZQZT |
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