5
FN9190.2
August 10, 2007
Absolute Maximum Ratings Thermal Information
Supply Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . 8.0V to 18.0V
Logic Input Voltage Range
(SDA, SCL, ENT, DSQIN1 and DSQIN2,
SEL18V1 and SEL18V2) . . . . . . . . . . . . . . . . . . . . . . -0.5V to 7V
Thermal Resistance (Typical, Notes 2, 3) θ
JA
(°C/W) θ
JC
(°C/W)
EPTSSOP Package . . . . . . . . . . . . . . . 29 4
QFN Package. . . . . . . . . . . . . . . . . . . . 34 6
Maximum Junction Temperature (Note 4) . . . . . . . . . . . . . . . +150°C
Maximum Storage Temperature Range. . . . . . . . . .-40°C to +150°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.aspOperating
Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . .-20°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:
2. 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.
3. For θ
JC
, the "case temp" location is the center of the exposed metal pad on the package underside.
4. The device junction temperature should be kept below +150°C. Thermal shut-down circuitry turns off the device if junction temperature exceeds
+150°C typically.
Electrical Specifications V
CC
= 12V, T
A
= -20°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C. EN1 = EN2 = H,
VTOP1 = VTOP2 = L, ENT1 = ENT2 = L, DCL = L, DSQIN1 = DSQIN2 = L, I
OUT
= 12mA, unless otherwise
noted. See “ISL6422 Software Description” on page 12 for I
2
C access to the system.
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS
Operating Supply Voltage Range 81214 V
Standby Supply Current EN1 = EN2 = L 1.5 3.0 mA
Supply Current I
IN
EN1 = EN2 = VTOP1 = VTOP2 = VBOT1 =
VBOT2 = ENT1 = ENT2 = H, No Load
4.0 8.0 mA
UNDERVOLTAGE LOCKOUT
Start Threshold 7.5 7.95 V
Stop Threshold 7.0 7.55 V
Start to Stop Hysteresis 350 400 500 mV
SOFT-START
COMP Rise Time (Note 5) (Note 5) 8196 Cycles
Output Voltage (Note 5) V
OUT1
(Refer to Table 11) 13.04 13.3 13.56 V
V
OUT1
(Refer to Table 11) 14.02 14.3 14.58 V
V
OUT1
(Refer to Table 11) 17.94 18.3 18.66 V
V
OUT1
(Refer to Table 11) 19.00 19.3 19.68 V
V
OUT2
(Refer to Table 15) 13.04 13.3 13.56 V
V
OUT2
(Refer to Table 15) 14.02 14.3 14.58 V
V
OUT2
(Refer to Table 15) 17.94 18.3 18.66 V
V
OUT2
(Refer to Table 15) 19.00 19.3 19.68 V
Line Regulation DV
OUT1,
DV
OUT2
V
IN
= 8V to 14V; V
OUT1
, V
OUT2
= 13V 4.0 40.0 mV
V
IN
= 8V to 14V; V
OUT1
, V
OUT2
= 18V 4.0 60.0 mV
Load Regulation DV
OUT1,
DV
OUT2
I
O
= 12mA to 350mA 50 80 mV
I
O
= 12mA to 750mA 100 200 mV
ISL6422
