ISL97694AIRTZ-T Просмотр технического описания (PDF) - Intersil
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ISL97694AIRTZ-T
Intersil
ISL97694AIRTZ-T Datasheet PDF : 28 Pages
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ISL97692, ISL97693, ISL97694A
Absolute Maximum Ratings (Note 4)
VIN, ISET, COMP, OVP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V
PWMI, FPWM, FSW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V
EN, ENPS, SCL, SDA/PWMI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V
CH1 to CH6, LX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 28V
PGND, AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +0.3V
Maximum Average Current Into LX Pin . . . . . . . . . . . . . . . . . . . . . . . . . .2.6A
ESD Ratings
Human Body Model (Tested per JESD22-A114F) . . . . . . . . . . . . . . . . 2kV
Machine Model (Tested per JESD22-A115C) . . . . . . . . . . . . . . . . . . 200V
Charged Device Model (JESD22-C101E) . . . . . . . . . . . . . . . . . . . . . . . 1kV
Latch Up (Tested per JESD-78B; Class 2, Level A) . . . . . . . . . . . . . . 100mA
Thermal Information
Thermal Resistance (Typical)
θJA (°C/W) θJC (°C/W)
16 Ld TQFN (Notes 5, 6) . . . . . . . . . . . . . . .
51
4.6
20 Ld TQFN (Notes 5, 6) . . . . . . . . . . . . . . .
45
3.0
Thermal Characterization (Typical)
PSIJT (°C/W)
16 Ld TQFN (Note 7). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.11
20 Ld TQFN (Note 7). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1
Maximum Continuous Junction Temperature . . . . . . . . . . . . . . . . .+125°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
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. Voltage Ratings are all with respect to the AGND pin.
5. θJA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech
Brief TB379.
6. For θJC, the “case temp” location is the center of the exposed metal pad on the package underside.
7. PSIJT is the PSI junction-to-top thermal characterization parameter. If the package top temperature can be measured with this rating then the die
junction temperature can be estimated more accurately than the θJC and θJC thermal resistance ratings.
Electrical Specifications All of the following specifications are characterized at TA = -40°C to +85°C; VIN = EN = 3.3V, RISET = 26.7kΩ
(ISL97692) or RISET = 35.5kΩ (ISL97693/4A), unless otherwise noted. Boldface limits apply over the operating temperature range, -40°C to
+85°C.
PARAMETER
DESCRIPTION
CONDITION
MIN
MAX
(Note 8) TYP (Note 8)
UNIT
GENERAL
VIN
IVIN_Standby
IVIN
Backlight Supply Voltage, (Notes 9, 10)
Standby current
TA = +25°C
EN = Low, LDO disabled
VIN Active Current, ILED = 40mA (ISL97692) All channels 100% duty
30mA (ISL97693/4A)
All channels 0% duty
2.4
5.5
V
1
µA
2.5
mA
0.8
mA
VOUT
Output Voltage
VIN ≥ 2.7V, ILED = 40mA (ISL97692) 30mA
(ISL97693/4A)
26
V
VUVLO
VUVLO_HYS
ENLow
Undervoltage Lockout Threshold
Undervoltage Lockout Hysteresis
EN Input Low Voltage
2
2.15 2.35
V
150
mV
0.5
V
ENHi
EN Input High Voltage
1.5
V
BOOST SWITCHING REGULATOR
SS
Soft-start
100% LED Duty Cycle
7
ms
SWILimit Boost FET Current Limit
rDS(ON)
Eff_peak
Internal Boost Switch ON-Resistance
Peak Efficiency
2.7V< VIN < 5.5V, fSW = 600kHz, L = 10µH,
2.45
2.8
3.2
A
TA ≤ +55°C
TA = +25°C
212
mΩ
VIN = 5.5V, VOUT = 21V, TA = +25°C,
RFSW = 144kΩ, ICH1-CH6 = 20mA,
L = 10µH with DCR ≤ 150mΩ
90
%
VIN = 2.7V, VOUT = 21V, TA = +25°C,
RFSW = 144kΩ, ICH1-CH6 = 20mA,
L = 10µH with DCR ≤ 150mΩ
74
%
10
FN7839.2
July 19, 2012
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