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LP8556 датащи(PDF) 7 Page - Texas Instruments

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номер детали LP8556
подробное описание детали  High-Efficiency LED Backlight Driver for Tablets
PDF  63 Pages
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производитель  TI1 [Texas Instruments]
домашняя страница  http://www.ti.com
Logo TI1 - Texas Instruments

LP8556 датащи(HTML) 7 Page - Texas Instruments

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7
LP8556
www.ti.com
SNVS871I – JULY 2012 – REVISED MARCH 2016
Product Folder Links: LP8556
Submit Documentation Feedback
Copyright © 2012–2016, Texas Instruments Incorporated
(1)
All voltages are with respect to the potential at the GND pins.
(2)
Minimum (MIN) and Maximum (MAX) limits are verified by design, test, or statistical analysis. Typical numbers are for information only.
(3)
Verified by design and not tested in production.
7.5 Electrical Characteristics
Unless otherwise specified: VDD = 12 V, EN / VDDIO = 1.8 V, TA = 25°C
(1) (2)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VDDIO
Supply voltage for digital I/Os
1.62
3.6
V
VDD
Input voltage for the internal LDO
2.7
20
V
IDD
Standby supply current
EN / VDDIO = 0 V, LDO disabled,
–30°C
≤ TA ≤ 85°C
1.6
μA
Normal mode supply current
LDO enabled, boost disabled
0.9
1.5
mA
LDO enabled, boost enabled, no load
2.2
3.65
fOSC
Internal oscillator frequency
accuracy
–4%
4%
–30°C
≤ TA ≤ 85°C
–7%
7%
VLDO
LDO output voltage
VDD ≥ 3.1 V
2.95
3.05
3.15
V
2.7 V
≤ VDD < 3.1 V
VDD – 0.05
TTSD
Thermal shutdown threshold
See(3)
150
°C
TTSD_hyst
Thermal shutdown hysteresis
20
°C



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