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TPS8804 Datasheet(PDF) 10 Page - Texas Instruments

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Part # TPS8804
Description  TPS8804 Smoke Alarm AFE
PDF  48 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS8804 Datasheet(HTML) 10 Page - Texas Instruments

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10
TPS8804
SLVSF29 – OCTOBER 2019
www.ti.com
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Copyright © 2019, Texas Instruments Incorporated
Electrical Characteristics (continued)
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VCSB
CSB output voltage
TJ = 27°C TEMPCOB[1:0] =
00, PDAC_B = 00, RCSB=1
kOhms, VDINB=3V
282
294
306
mV
TJ = 27°C TEMPCOB[1:0] =
00, PDAC_B = FF, RCSB=1
kOhms, VDINB=3V
582
594
606
mV
TJ = 27°C TEMPCOB[1:0] =
01, PDAC_B = 00, RCSB=1
kOhms, VDINB=3V
261
273
285
mV
TJ = 27°C TEMPCOB[1:0] =
01, PDAC_B = FF, RCSB=1
kOhms, VDINB=3V
561
573
585
mV
TJ = 27°C TEMPCOB[1:0] =
10, PDAC_B = 00, RCSB=1
kOhms, VDINB=3V
176
188
200
mV
TJ = 27°C TEMPCOB[1:0] =
10, PDAC_B = FF, RCSB=1
kOhms, VDINB=3V
476
488
500
mV
TJ = 27°C TEMPCOB[1:0] =
11, PDAC_B = 00, RCSB=1
kOhms, VDINB=3V
71
83
95
mV
TJ = 27°C TEMPCOB[1:0] =
11, PDAC_B = FF, RCSB=1
kOhms, VDINB=3V
371
383
395
mV
VPDACB, STEP
DAC step size
1.18
mV
INL
-10
10
LSB
DNL
-1.5
1.5
LSB
tPDACB, SET
Settling time
1
5
µs
KPDACB, COMP
CSB temperature
compensation coefficient
TEMPCOB[1:0] = 00,
PDAC[7:0] = 0x00, RCSB=1
kOhms, VDINB=3V, TJ=0°C,
50°C
0.174
0.347
0.521
mV/°C
TEMPCOB[1:0] = 01,
PDAC[7:0] = 0x00, RCSB=1
kOhms, VDINB=3V, TJ=0°C,
50°C
0.208
0.416
0.624
mV/°C
TEMPCOB[1:0] = 10,
PDAC[7:0] = 0x00, RCSB=1
kOhms, VDINB=3V, TJ=0°C,
50°C
0.346
0.693
1.039
mV/°C
TEMPCOB[1:0] = 11,
PDAC[7:0] = 0x00, RCSB=1
kOhms, VDINB=3V, TJ=0°C,
50°C
0.520
1.040
1.560
mV/°C
VDINB, DROP
Dropout voltage. Voltage
required between DINB and
CSB for current regulation.
PLDO=3.6V, RCSA=820mΩ,
TEMPCOB[1:0]=11,
PDAC[7:0]=0x28, TJ=27°C
(I_LED
≈158mA, 0.8% temp
coefficient)
300
mV
PLDO=3.6V, RCSA=820mΩ,
TEMPCOB[1:0]=01,
PDAC[7:0]=0x79, TJ=27°C
(I_LED
≈507mA, 0.1% temp
coefficient)
500
mV
IDINB
LED current
0
550
mA
CO TRANSIMPEDANCE AMPLIFIER
RI, CO
CO input resistance
COSWRI = 1
0.7
1
1.3
kΩ



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