TPS929160-Q1
ZHCSNG0 – APRIL 2023
www.ti.com.cn
表 7-4. ADC Channel
ADC
ADC
CHANNEL
CALCULATION CALCULATION
ADCCHSEL
NAME
COMMENT
NO.
PARAMETER
(a)
PARAMETER
(k)
0
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
0Ah
0Bh
0Ch
0Dh
0Eh
0Fh
10h
11h
12h
13h
14h
15h
16h
17h
18h
19h
1Ah
1Bh
1Ch
1Dh
1Eh
1Fh
REF
SUPPLY
VLDO
0.007 V
0.1346 V
0.0465 V
–242.35°C
0.7592 µA
0.1346 V
0.1346 V
RESERVED
0.1346 V
0.1346 V
0.0101 V/LSB
0.1608 V/LSB
0.022 V/LSB
2.152°C/LSB
0.7461 µA/LSB
0.1608 V/LSB
0.1608 V/LSB
RESERVED
Reference voltage
SUPPLY voltage
1
2
5V LDO output voltage
Internal temperature sensor
Reference current
3
TEMPSNS
IREF
4
5
VBAT
VBAT Voltage
6
MAXOUT
RESERVED
OUTA0
Maximum channel output voltage
RESERVED
7
8
0.1608 V/LSB
0.1608 V/LSB
Output voltage channel A0
Output voltage channel A1
RESERVED
9
OUTA1
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
RESERVED
OUTB0
0.1346 V
0.1346 V
0.1608 V/LSB
0.1608 V/LSB
RESERVED
0.1608 V/LSB
0.1608 V/LSB
RESERVED
0.1608 V/LSB
0.1608 V/LSB
RESERVED
0.1608 V/LSB
0.1608 V/LSB
RESERVED
0.1608 V/LSB
0.1608 V/LSB
RESERVED
0.1608 V/LSB
0.1608 V/LSB
RESERVED
0.1608 V/LSB
0.1608 V/LSB
RESERVED
Output voltage channel B0
Output voltage channel B1
RESERVED
OUTB1
RESERVED
OUTC0
RESERVED
0.1346 V
Output voltage channel C0
Output voltage channel C1
RESERVED
OUTC1
0.1346 V
RESERVED
OUTD0
RESERVED
0.1346 V
Output voltage channel D0
Output voltage channel D1
RESERVED
OUTD1
0.1346 V
RESERVED
OUTE0
RESERVED
0.1608 V/LSB
0.1346 V
Output voltage channel E0
Output voltage channel E1
RESERVED
OUTE1
RESERVED
OUTF0
RESERVED
0.1346 V
Output voltage channel F0
Output voltage channel F1
RESERVED
OUTF1
0.1346 V
RESERVED
OUTG0
RESERVED
0.1346 V
Output voltage channel G0
Output voltage channel G1
RESERVED
OUTG1
0.1346 V
RESERVED
OUTH0
RESERVED
0.1346 V
Output voltage channel H0
Output voltage channel H1
RESERVED
OUTH1
0.1346 V
RESERVED
RESERVED
7.3.5.1 Minimum On Time for ADC Measurement
Because the TPS929160-Q1 supports PWM control for adjusting LED brightness, the voltage on OUTXn is
like a pulse waveform. When the current output is enabled by setting ENOUTXn to 1, the ADC measures the
voltage on assigned OUTXn after the output is turned on with t(BLANK) delay time, which is programmable by
4-bit register BLANK. The minimum current output pulse on assigned OUTXn must be longer than t(BLANK) + 3 ×
t(CONV) to make sure the correct measured result for OUTXn at ON state. When the output is disabled by setting
ENOUTXn to 0, the ADC samples the voltage on assigned OUTXn at OFF state.
TI recommends to set 100% duty cycle on assigned OUTXn for ADC measurement by writing FFh to
PWMOUTXn and 0Fh to PWMLOWOUTXn register when the PWM dimming period t(DIM_cycle) has to be less
than t(BLANK) + 3 × t(CONV)
.
Copyright © 2023 Texas Instruments Incorporated
English Data Sheet: SLVSG60
26
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