參數(shù)資料
型號(hào)： TPS65800RTQTG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源管理
英文描述： 8-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC56
封裝： 8 X 8 MM, GREEN, PLASTIC, QFN-56
文件頁數(shù)： 78/98頁
文件大?。?/td> 2077K
代理商： TPS65800RTQTG4
www.ti.com
ELECTRICAL CHARACTERISTICS – POWER PATH AND CHARGE MANAGEMENT
SLVS606C – SEPTEMBER 2005 – REVISED FEBRUARY 2007
Over recommended operating conditions (typical values at T
J = 25°C), application circuit as in Figure 3 (unless otherwise
noted).
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOLTAGE DETECTION THRESHOLDS
Input Voltage detection
AC detected at V(AC)– V(BAT) > VIN(DT);
VIN(DT)
190
threshold
USB detected at V(USB)– V(BAT) > VIN(DT)
mV
Input Voltage removal
AC not detected at V(AC)– V(BAT) < VIN(NDT);
VIN(NDT)
125
threshold
USB not detected at V(USB)– V(BAT) < VIN(NDT)
tDGL(NDT)
Power not detected deglitch
22.5
ms
Supplement detection
VSUP(DT)
Battery switch ON at V(BAT) – V(OUT) > VSUP(DT)
60
threshold
mV
Supplement not detected
VSUP(NDT)
Battery switch OFF at V(BAT)– V(OUT) < VSUP(NDT)
20
threshold
POWER PATH INTEGRATED MOSFETs CHARACTERISTICS
VACDO = V(AC)– V(OUT); V(AC) = 4.75 V AC input current limit set to 2.75 A
VACDO
AC switch dropout voltage
350
375
(typ), IO(OUT) = 1.0 A
I(OUT) + I(BAT)= 0.5 A
175
190
VUSBDO = V(USB)– V(OUT); V(USB) = 4.6 V
VUSBDO
USB switch dropout voltage
USB input current limit set to 2.75 A (typ)
I(OUT) + I(BAT)= 0.1 A
35
45
mV
Battery switch dropout
VBATDODCH
V(BAT): 3 V
→ V
CH(REG), I(BAT) = –1 A
60
100
voltage, discharge
Battery switch dropout
VBATDOCH
Charger on, V(BAT): 3 V
→ 4.2 V, I(BAT) = 1 A
60
100
voltage, charge
POWER PATH INPUT CURRENT LIMIT
Selected Input current limit,
Selected input switch not in dropout, I2C settings: ISET2 = LO,
IINP(LIM1)
80
100
applies to USB input only
PSEL = LO
mA
Selected Input current limit,
IINP(LIM2)
400
500
Selected input switch not in dropout, I2C settings: ISET2 = HI, PSEL = LO
applies to USB input only
Selected Input current limit,
Selected input switch not in dropout, I2C settings: ISET2 = HI OR LO,
IINP(LIM3)
applies to either AC or USB
2.75
A
PSEL = HI
input
SYSTEM REGULATION VOLTAGE
VSYS(REG) = V(OUT), DPPM loop not active, selected input current limit not
VSYS(REG)
Output regulation voltage
4.6
4.7
V
reached. Selected input voltage (AC or USB) > 5.1 V
POWER PATH PROTECTION AND RECOVERY FUNCTIONS
Input-to-output short-circuit
VINOUTSH
AC and USB switches set to OFF if V(OUT) < VINOUTSH
0.6
V
detection threshold
OUT short circuit recovery
RSH(USBSH)
V(OUT) < 1 V, internal resistor connected from USB to OUT
500
pullup resistor
OUT short circuit recovery
RSH(ACSH)
V(OUT) < 1 V, internal resistor connected from AC to OUT
500
pullup resistor
Overvoltage detection
Rising voltage, overvoltage detected when V(AC) > VOVP or
6
6.5
6.8
threshold
V(USB) > VOVP
VOVP
V
Overvoltage detection
Falling voltage, relative to detection threshold
0.1
hysteresis
Battery to Output short
BAT switch set to OFF if V(BAT)-V(OUT)> VBATOUTSH
200
mV
VBATOUTSH
circuit detection threshold
Battery-to-ouput short-circuit
V(DPPM) < 1v, tBLK(SHBAT) = KBLK(SHBAT)× CDPPM, CDPPM capacitor is
KBLK(SHBAT)
1
ms/nF
blanking time constant
connected from DPPM pin to AGND1
OUT short circuit recovery
V(BAT) – V(OUT) > VBATOUTSH,
10
mA
ISH(BAT)
pullup current source
internal current source connected between OUT and BAT
BAT short circuit recovery
V(BAT)< 1 V,
RSH(BAT)
1
k
resistor
Internal resistor connected from OUT to BAT
Internal resistor connected from BAT to AGND1 when battery is not detected
RDCH(BAT)
BAT pulldown resistor
500
by ANLG1
8
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