Texas Instruments TPS61181(82/81A)-259 Evaluation Board TPS61181(82/81A)EVM-259 TPS61181AEVM-259 TPS61181AEVM-259 Datenbogen
Produktcode
TPS61181AEVM-259
SLVSAN6A
–
FEBRUARY 2011
–
REVISED MARCH 2011
ELECTRICAL CHARACTERISTICS
V
BAT
= 10.8 V, 0.1
μ
F at Cin, EN = Logic High, IFB current = 20 mA, IFB voltage = 500 mV, T
A
=
–
40
°
C to 85
°
C, typical
values are at T
A
= 25
°
C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENT
V
BAT
Battery input voltage range
4.5
24
V
V
cin
Cin pin output voltage
2.7
3.15
3.6
V
I
q_bat
Operating quiescent current into V
BAT
Device enable, switching no load, Vin =
3
mA
24 V
I
Q_sw
Operating quiescent current into V
O
V
O
= 35V
60
μ
A
I
SD
Shutdown current
EN=GND
2
18
μ
A
V
bat_UVLO
V
BAT
under-voltage lockout threshold
V
BAT
rising
4.45
V
V
BAT
falling
3.9
V
bat_hys
V
BAT
under-voltage lockout hysteresis
V
BAT
rising
–
V
BAT
falling
220
mV
EN AND DCTRL
V
H
EN pin logic high voltage
2.0
V
V
L
EN pin logic low voltage
0.8
V
V
H
DCTRL pin logic high voltage
2.0
V
V
L
DCTRL pin logic low voltage
0.8
V
R
PD
Pull down resistor on both pins
V
EN, DCTRL
= 2V
400
800
1600
k
Ω
CURRENT REGULATION
V
ISET
ISET pin voltage
1.204
1.229
1.253
V
K
ISET
Current multiple Iout/ISET
ISET current = 20
μ
A
970
1000
1030
IFB
Current accuracy
ISET current = 20
µ
A
19.4
20
20.6
mA
K
m
(I
max
–
I
min
)/I
AVG
ISET current = 20
μ
A
1
2.5
%
I
leak
IFB pin leakage current
IFB voltage = 20 V on all pins
3
μ
A
I
IFB_MAX
Current sink max output current
IFB = 500 mV
30
mA
BOOST OUTPUT REGULATION
V
IFB_L
V
O
dial up threshold
ISET current = 20
μ
A
400
mV
V
IFB_H
V
O
dial down threshold
ISET current = 20
μ
A
700
mV
V
reg_L
Min Vout regulation voltage
16
V
V
o_step
V
O
stepping voltage
100
150
mV
POWER SWITCH
R
PWM_SW
PWM FET on-resistance
0.2
0.45
Ω
R
start
Start up charging resistance
V
O
= 0 V
100
300
Ω
V
start_r
Isolation FET start up threshold
V
IN
–
V
O
, V
O
ramp up
1.2
2
V
I
LN_NFET
PWM FET leakage current
V
SW
= 35 V, T
A
= 25
°
C
1
μ
A
Copyright
©
2011, Texas Instruments Incorporated
3
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