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LP8543 Datasheet(PDF) 20 Page - Texas Instruments

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Part # LP8543
Description  High-Voltage DC/DC Boost Converter With Integrated FET
PDF  40 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LP8543 Datasheet(HTML) 20 Page - Texas Instruments

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LP8543
SNVS604D – AUGUST 2009 – REVISED MARCH 2013
www.ti.com
Table 4. PSPWM Frequency Selection in EEPROM Registers (N = number of strings used) (continued)
PWM_MODE = 0
PWM_MODE = 1
PWM_FREQ[2:0] +
PWM Frequency
Shift Frequency
Output Frequency
Output Frequency
Shift Frequency
PSPWM_FREQ[1:0]
(Hz)
(Hz)
(Hz)
(Hz)
(Hz)
10100
3965
3965
3965/N
1755
1755 x N
10101
3965
1983
1983/N
1831
1831 x N
10110
3965
991
991/N
1908
1908 x N
10111
3965
496
496/N
1983
1983 x N
11000
4883
4883
4883/N
2060
2060 x N
11001
4883
2441
2441/N
2671
2671 x N
11010
4883
1221
1221/N
3203
3203 x N
11011
4883
610
610/N
3737
3737 x N
11100
19531
19531
19531/N
4270
4270 x N
11101
19531
9766
9766/N
4808
4808 x N
11110
19531
4883
4883/N
9766
9766 x N
11111
19531
2441
2441/N
19531
19531 x N
Table 5. PWM Frequencies with Phase Shift Disabled
PWM_MODE = 0
PWM_MODE = 1
PWM_FREQ[2:0] +
PWM Frequency (Hz)
Output Frequency (Hz)
PSPWM_FREQ[1:0]
00000
992
229
00001
992
305
00010
992
381
00011
992
458
00100
1526
534
00101
1526
610
00110
1526
687
00111
1526
763
01000
1983
839
01001
1983
916
01010
1983
992
01011
1983
1068
01100
2441
1144
01101
2441
1221
01110
2441
1297
01111
2441
1373
10000
2974
1450
10001
2974
1526
10010
2974
1602
10011
2974
1678
10100
3965
1755
10101
3965
1831
10110
3965
1908
10111
3965
1983
11000
4883
2060
11001
4883
2671
11010
4883
3203
11011
4883
3737
11100
19531
4270
20
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