ISL97682IRTZ-TK Intersil, ISL97682IRTZ-TK Datasheet - Page 5

• Manufacturer Part Number: ISL97682IRTZ-TK
• Description: 2 Channel LED Driver, 16LD TQFN 3X3, 1K T&R
• Manufacturer: Intersil
• Series: -r

Specifications of ISL97682IRTZ-TK

• Constant Current: -
• Constant Voltage: -
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 2
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: -
• Frequency: 500kHz ~ 650kHz, 900kHz ~ 1.1MHz
• Voltage - Supply: 4 V ~ 26.5 V
• Voltage - Output: 45V
• Mounting Type: Surface Mount
• Package / Case: 16-WFQFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Absolute Maximum Ratings
VIN, EN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 28V
VDC, PWMI, FPWM/DirectPWM, FSW, RSET, COMP, OVP . . . -0.3V to 5.5V
CH1 to CH4, LX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 45V
PGND, AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +0.3V
Above voltage ratings are all with respect to AGND pin
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:
Electrical Specifications
5.
unless otherwise noted. Boldface limits apply over the operating temperature range, -40°C to +85°C.
GENERAL
V
I
IVIN_STBY
V
V
V
LINEAR REGULATOR
V
V
EN
EN
t
BOOST SWITCHING REGULATOR
SS
SW
r
Eff_peak
D
4. θ
5. For θ
6. PSI
VIN
EN(Low)
DS(ON)
IN
OUT
UVLO
UVLO_HYS
DC
LDO
MAX
Low
Hi
ILimit
Brief TB379.
junction temperature can be estimated more accurately than the θ
PARAMETER
JA
JT
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech
JC
is the PSI junction-to-top thermal characterization parameter. If the package top temperature can be measured with this rating then the die
, the “case temp” location is the center of the exposed metal pad on the package underside.
Backlight Supply Voltage, (Note 8)
VIN Active Current
VIN Shutdown Current
Output Voltage
Undervoltage Lockout Threshold
Undervoltage Lockout Hysteresis
LDO Output Voltage
VDC LDO Dropout Voltage
Guaranteed Range for EN Input Low Voltage
Guaranteed Range for EN Input High Voltage
EN low time before shut-down
Soft-start
Boost FET Current Limit
Internal Boost Switch ON-Resistance
Peak Efficiency
Boost Maximum Duty Cycle
5
DESCRIPTION
ISL97682, ISL97683, ISL97684
All specifications below are characterized at T
JC
T
EN = 3.3V
EN = 0V,
4.0V < V
V
V
100% LED Duty Cycle
V
each, L = 10µH with DCR
≤100mΩ, T
V
each, L = 10µH with DCR ≤
100mΩ, T
V
V
(F
and θ
A
IN
IN
IN
IN
FSW
FSW
SW
= +25°C
> 6V
= 5V, I
= 24V, 48 LEDs, 30mA
= 12V, 48 LEDs, 30mA
Thermal Information
Thermal Resistance (Typical)
Thermal Characterization (Typical)
Maximum Continuous Junction Temperature . . . . . . . . . . . . . . . . .+125°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
=1.0MHz)
< 2.4V (F
> 2.4V
JC
16 LD TQFN (Notes 4, 5) . . . . . . . . . . . . . . .
16 Ld TQFN (Note 6). . . . . . . . . . . . . . . . . . . . . . . . . . . . .
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
IN
T
thermal resistance ratings.
CONDITION
VDC
A
A
≤ 26.5V
A
= +25°C
= 25°C
= +25°C
= 20mA
SW
= 600kHz)
A
= -40°C to +85°C; V
(Note 7)
MIN
4.0
2.2
4.6
1.5
1.4
92
85
IN
= 12V, EN = 5V, R
29.5
90.1
TYP
100
500
4.8
1.8
30
87
5
7
θ
JA
(°C/W)
51
(Note 7)
MAX
26.5
200
PSI
2.5
0.5
2.3
45
5
5
March 11, 2011
SET
θ
JT
0.11
JC
(°C/W)
(°C/W)
= 20kΩ,
4.6
FN7689.0
UNIT
mΩ
mA
mV
mV
ms
ms
µA
%
%
%
%
V
V
V
V
V
V
A