English
Language : 

ISL6294A Datasheet, PDF (2/8 Pages) Intersil Corporation – High Input Voltage Charger
◁
ISL6294A
Absolute Maximum Ratings (Reference to GND)
VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 30V
IMIN, IREF, BAT, CHG, EN, PPR . . . . . . . . . . . . . . . . . . . -0.3V to 7V
Recommended Operating Conditions
Ambient Temperature Range . . . . . . . . . . . . . . . . . . . .-40°C to 85°C
Maximum Supply Voltage (VIN Pin). . . . . . . . . . . . . . . . . . . . . . 28V
Operating Supply Voltage (VIN Pin). . . . . . . . . . . . . . . . 4.5V to 6.5V
Programmed Charge Current . . . . . . . . . . . . . . . . 100mA to 900mA
Thermal Information
Thermal Resistance
θJA (°C/W) θJC (°C/W)
DFN Package (Notes 1, 2) . . . . . . . . . .
59
4.5
Maximum Junction Temperature (Plastic Package) . . . . . . . +150°C
Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile. . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
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. 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.
2. For θJC, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications Typical Values Are Tested at VIN = 5V and the TA at +25°C.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP MAX UNITS
POWER-ON RESET
Rising POR Threshold
Falling POR Threshold
VIN-BAT OFFSET VOLTAGE
VPOR
VPOR
VBAT = 3.0V, use PPR to indicate the
comparator output.
3.3
3.9
4.3
V
2.7
3.4
3.6
V
Rising Edge
Falling Edge
OVERVOLTAGE PROTECTION
VOS
VOS
VBAT = 4.0V, use CHG pin to indicate the
comparator output (Note 3)
-
90
150
mV
10
50
-
mV
Overvoltage Protection Threshold
OVP Threshold Hysteresis
VOVP
(Note 4)
Use PPR to indicate the comparator output
6.9
7.3
7.7
V
100
240
400
mV
STANDBY CURRENT
BAT Pin Sink Current
VIN Pin Supply Current
VIN Pin Supply Current
VOLTAGE REGULATION
ISTANDBY Charger disabled or the input is floating
VBAT = 4.2V
IVIN Charger disabled
IVIN Charger enabled
-
-
1.0
µA
-
350
600
µA
-
500
800
µA
Output Voltage
PMOS ON-Resistance
CHARGE CURRENT (Note 5)
VCH
rDS(ON)
Charge current = 20mA
VIN = 4.1V, charge current = 0.3A
4.158 4.20 4.242
V
-
0.6
-
Ω
IREF Pin Output Voltage
IIREF VBAT = 3.8V
1.18 1.22 1.26
V
Constant Charge Current
ICHG VIN = 5V, RIREF = 24.3kΩ, VBAT = 2.8V to 4.0V 450
500
550
mA
Trickle Charge Current
ITRK VIN = 5V, RIREF = 24.3kΩ, VBAT = 2.4V
70
95
130
mA
End-of-Charge Current
IMIN VIN = 5V, RIMIN = 243kΩ
33
45
57
mA
EOC Rising Threshold
VIN = 5V, RIMIN = 243kΩ
325
380
415
mA
PRECONDITIONING CHARGE THRESHOLD
Preconditioning Charge Threshold Voltage VMIN
Preconditioning Voltage Hysteresis
VMINHYS
INTERNAL TEMPERATURE MONITORING
2.45 2.55 2.65
V
-
250
-
mV
Charge Current Foldback Threshold
(Note 6)
TFOLD
100
115
130
°C
2
FN6821.2
December 11, 2008
 ▷