IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests
are at the specified temperature and are pulsed tests, therefore: T
J
= T
C
= T
A
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:
1.
θ
JA
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.
2. For
θ
JC
, the “case temp” location is the center of the exposed metal pad on the package underside assumed under ideal case temperature.
3. PSI
JT
is the junction-to-top thermal resistance. If the package top temperature can be measured, with this rating then the die junction temperature
can be estimated more accurately than the
θ
JC
and
θ
JC
thermal resistance ratings.
4. Limits established by characterization and are not production tested.
Electrical Specifications
All specifications below are tested at T
A
= -40°C to +85°C; V
IN
= 12V, EN = 5V, R
SET
= 36.6kΩ, unless
otherwise noted. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise
specified. Temperature limits established by characterization and are not production tested.
DESCRIPTION
CONDITION
MIN TYP MAX UNIT
PARAMETER
GENERAL
VIN
IVIN_STBY
V
OUT
V
UVLO
V
UVLO_HYS
REGULATOR
V
DC
I
VDC_STBY
I
VDC
V
LDO
SS
ENmin
BOOST
SWILimit
Backlight Supply Voltage
VIN Shutdown Current
Output Voltage
Undervoltage Lockout Threshold
Undervoltage Lockout Hysteresis
≤
9 LEDs per channel (3.5V/30mA type)
6
24
5
34.5
V
µA
V
V
mV
2.45
300
2.8
LDO Output Voltage
Standby Current
Active Current
VDC LDO Dropout Voltage
Soft-Start
Minimum Enable Signal
VIN >6V
EN/PWM = 0V
EN/PWM = 5V
VIN > 5.5V, 30mA
5.0
5.5
20
10
30
1
40
200
V
µA
mA
mV
ms
µs
Boost FET Current Limit
T
A
= +25°C
T
A
= -40°C to +85°C
2.3
2.2
130
3.2
A
A
r
DS(ON)
Internal Boost Switch ON-Resistance
260
mΩ
4
FN6564.2
December 22, 2008
ISL97635A
Electrical Specifications
All specifications below are tested at T
A
= -40°C to +85°C; V
IN
= 12V, EN = 5V, R
SET
= 36.6kΩ, unless
otherwise noted. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise
specified. Temperature limits established by characterization and are not production tested.
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