lp5526tlx National Semiconductor Corporation, lp5526tlx Datasheet - Page 5

• Manufacturer Part Number: lp5526tlx
• Description: Lighting Management Unit With High Voltage Boost Converter With Up To 150ma Serial Flash Led Driver
• Manufacturer: National Semiconductor Corporation

Electrical Characteristics
Limits in standard typeface are for T
(-30
C
82kΩ (Note 9).
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Operating Ratings are conditions under which operation of
the device is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test conditions, see the
Electrical Characteristics tables.
Note 2: All voltages are with respect to the potential at the GND pins.
Note 3: Internal thermal shutdown circuitry protects the device from permanent damage. Thermal shutdown engages at T
T
Note 4: For detailed soldering specifications and information, please refer to National Semiconductor Application Note AN1112 : Micro SMD Wafer Level Chip Scale
Package
Note 5: The Human body model is a 100pF capacitor discharged through a 1.5kΩ resistor into each pin. The machine model is a 200pF capacitor discharged
directly into each pin. MIL-STD-883 3015.7
Note 6: In applications where high power dissipation and/or poor package thermal resistance is present, the maximum ambient temperature may have to be
derated. Maximum ambient temperature (T
dissipation of the device in the application (P
following equation: T
Note 7: Junction-to-ambient thermal resistance is highly application and board-layout dependent. In applications where high maximum power dissipation exists,
special care must be paid to thermal dissipation issues in board design.
Note 8: Min and Max limits are guaranteed by design, test, or statistical analysis. Typical numbers are not guaranteed, but do represent the most likely norm.
Note 9: Low-ESR Surface-Mount Ceramic Capacitors (MLCCs) used in setting electrical characteristics.
Note 10: Boost output voltage set to 8V (08H in register 0DH) to prevent any unneccessary current consumption.
Note 11: No external loading allowed for V
Symbol
J
VDD
V
=130
V
I
VDD
DDA
REF
o
C
o
= C
C (typ.).
<
T
VDDIO
A
Standby supply current
(V
No-boost supply current
(V
No-load supply current
(V
Output voltage of internal LDO
Reference voltage (Note 11)
<
DD1
DD1
DD1
+85
= 100nF, C
A-MAX
, V
, V
, V
o
C). Unless otherwise noted, specifications apply to the LP5526 Block Diagram with: V
DD2
DD2
DD2
= T
J-MAX-OP
Parameter
)
)
)
OUT
– (θ
= 2 x 4.7µF, C
REF
JA
A-MAX
D-MAX
J
x P
pin.
= 25
) is dependent on the maximum operating junction temperature (T
D-MAX
), and the junction-to ambient thermal resistance of the part/package in the application (θ
o
(Notes 2, 8)
C. Limits in boldface type apply over the operating ambient temperature range
).
IN
= 10µF, C
NSTBY = L
Register 0DH=08H (Note 10)
NSTBY = H,
EN_BOOST = L
NSTBY = H, EN_BOOST = H
Autoload OFF
I
VDDA
= 1mA
VDDA
Condition
5
= 1µF, C
VREF
= 100nF, L1 = 10µH, R
Min
-3
J-MAX-OP
2.80
1.23
Typ
300
780
1.7
J
=150
= 125
RGB
o
C (typ.) and disengages at
DD1,2
o
C), the maximum power
= 2.4kΩ and R
1300
Max
800
+3
JA
7
= 3.0 ... 5.5V,
), as given by the
www.national.com
Units
RT
µA
µA
uA
%
V
V
=