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ISL97698 数据表(PDF) 4 Page - Renesas Technology Corp

部件名 ISL97698
功能描述  High Efficiency 2-Channel White LED Driver for Smartphone Backlighting
Download  21 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

ISL97698 数据表(HTML) 4 Page - Renesas Technology Corp

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ISL97698
FN8417 Rev.1.00
Page 4 of 21
Sep 7, 2017
Absolute Maximum Ratings
Thermal Information
VOUT, LX (to GND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 24.5V
VIN, VIN_IO, SCL, SDA, PWMI, SWIRE, EN (to GND) . . . . . . . . . . -0.3V to 6V
CH0, CH1 (to GND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V
Maximum Average Current Into LX Pin . . . . . . . . . . . . . . . . . . . . . . . . . .1.1A
ESD Rating
Human Body Model (Tested per JESD22-A114) . . . . . . . . . . . . . . . . . 2kV
Latch Up (Tested per JESD78: Class II, Level A) . . . . . . . . . . . . . . . . 100mA
Thermal Resistance (Typical)
JA (°C/W)
JC (°C/W)
12 Bump, 0.4mm Pitch CSP (Notes 4, 5) .
90
60
Maximum Continuous Junction Temperature . . . . . . . . . . . . . . . . .+125°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see TB493
Recommended Operating Conditions
Input Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5V to 5.5V
Digital Interface Supply Voltage (VIN_IO) . . . . . . . . . . . . . . . . . 1.8V to 5.5V
Output Voltage (VOUT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Up to 23.5V
Output Current per Channel (CH0, CH1) . . . . . . . . . . . . . . . . . . Up to 25mA
Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
CH0/CH1 Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0V to 5.5V
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
4.
JA is measured in free air with the component mounted on a high-effective thermal conductivity test board with “direct attach” features. See TB379
5. For
JC, the “case temp” location is taken at the package top center.
Electrical Specifications VIN =VIN_IO = EN = 3.7V, TA = +25°C unless otherwise noted. Boldface limits apply over the operating
temperature range, -40°C to +85°C.
PARAMETER
DESCRIPTION
CONDITION
MIN
(Note 6)TYP
MAX
(Note 6)UNIT
GENERAL
VIN
Input Supply Voltage
2.5
5.5
V
VIN_IO
Digital Interface Supply Voltage
5.5
V
IVIN
VIN Supply Current
LX not switching (Overdrive VOUT)
0.35
mA
ISHUTDOWN
VIN Shutdown Supply Current
EN = 0V
1
3
µA
VINUVLO
VIN Undervoltage Lockout
VIN rising
2.2
2.3
2.4
V
Hysteresis
150
mV
VIN_IOUVLO
VIN_IO Undervoltage Lockout Threshold VIN_IO rising
1.4
1.5
1.6
V
Hysteresis
70
mV
BOOST REGULATOR
TSS
Soft-Start Time
If soft-start goes through all 8 steps and Boost
FET current reaches the limit
7ms
ILX
Boost FET Current Limit
0.9
1.1
1.3
A
IPFM
Peak FET Current in PFM Mode
When ABS not active (04h<4> = 0)
250
296
350
mA
rDS(ON)N
Boost Low-Side Switch ON-Resistance
300
rDS(ON)P
Boost High-Side Switch ON-Resistance
470
DMAX
Boost Maximum Duty Cycle
fSW = 850kHz
92
%
DMIN
Boost Minimum Duty Cycle
fSW = 850kHz
15
%
fSW
Boost Switching Frequency
Default frequency setting (04h<3:0> = Ah)
765
850
935
kHz
ILX_LEAKAGE
LX Leakage Current
LX = 23.5V
10
µA
REFERENCE
IMATCH
Channel-to-Channel DC Current
Matching
ILED = 1mA to 25mA
-2.5
+2.5
%
IACC
Current Accuracy
ILED = 1mA to 25mA
-3
+3
%


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