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TPS60251 Datenblatt(Datasheet) 2 Page - Texas Instruments

Teile-Nr. TPS60251
Beschreibung  HIGH EFFICIENCY CHARGE PUMP FOR 7 WLEDs WITH I2C INTERFACE
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Hersteller  TI [Texas Instruments]
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ABSOLUTE MAXIMUM RATINGS
DISSIPATION RATINGS
RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
TPS60251
SLVS767 – APRIL 2007
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
over operating free-air temperature range (unless otherwise noted)(1)
VALUE
UNIT
VI
Input voltage range (all pins)
–0.3 to 7
V
MAX Output current limit
650
mA
HBM ESD Rating (2)
2
kV
CDM ESD Rating(3)
500
V
MM ESD Rating(4)
200
V
TA
Operating temperature range
–40 to 85
°C
TJ
Maximum operating junction temperature
150
°C
TST
Storage temperature
–55 to 150
°C
(1)
Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2)
The Human body model (HBM) is a 100-pF capacitor discharged through a 1.5-k
Ω resistor into each pin. The testing is done according
JEDECs EIA/JESD22-A114.
(3)
Charged Device Model
(4)
Machine Model (MM) is a 200-pF capacitor discharged through a 500-nH inductor with no series resistor into each pin. The testing is
done according JEDECs EIA/JESD22-A115.
THERMAL
THERMAL
TA ≤ 25°C POWER
DERATING FACTOR
TA = 85°C POWER
PACKAGE
RESISTANCE, RθJC
RESISTANCE, RθJA
RATING
ABOVE TA = 25°C
RATING
QFN 4
×4 RTW
57.9
°C/W
37.8
°C/W
2.646 W
1.455 W
1.058 W
MIN
NOM
MAX
UNIT
VI
Input voltage range
3.0
6.0
V
IO(max)
Maximum output current
230
mA
CI
Input capacitor
1.0
µF
CO
Output capacitor
4.7
µF
C1, C2
Flying capacitor
1.0
µF
TA
Operating ambient temperature
–40
85
°C
TJ
Operating junction temperature
–40
125
°C
CIS(MAX)
Maximum capacitance on IS pin
100
pF
V
I = 3.5 V, TA = –40°C to 85°C, RIS = 562 kΩ, typical values are at TA = 25°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY VOLTAGE
VI
Input voltage range
3.0
6.0
V
750-kHz Switching in 1.5
× Mode
6.7
mA
(IMAIN_LED = 15 mA × 4, IO = 60 mA)
IQ
Operating quiescent current
No switching in
×1 mode (I
O = 100 µA)
68
µA
ISD
Shutdown current
Enable Control Register has 0x00
1.3
µA
VUVLO1
UVLO Threshold voltage1(1)
VI falling
2.2
2.4
2.6
V
(1)
Shut down charge pump and power stage and keep I2C content
2
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