ISL6292_14 Datasheet, PDF (4/20 Pages) Intersil Corporation – Li-ion/Li Polymer Battery Charger

ISL6292
Electrical Specifications
Typical values are tested at V_IN = 5V and +25°C Ambient Temperature, maximum and minimum values are
guaranteed over 0°C to +70°C Ambient Temperature with a supply voltage in the range of 4.3V to 6.5V, unless
otherwise noted. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNITS
TRICKLE CHARGE THRESHOLD
Trickle Charge Threshold Voltage
TEMPERATURE MONITORING
V_MIN
2.7
2.8
3.0
V
Low Battery Temperature Threshold
High Battery Temperature Threshold
Battery Removal Threshold
Charge Current Foldback Threshold
Current Foldback Gain
OSCILLATOR
V_TMIN
V_TMAX
V_RMV
T_FOLD
G_FOLD
V2P8 = 3.0V
V2P8 = 3.0V
V2P8 = 3.0V
1.45 1.51 1.57
V
0.36 0.38 0.40
V
-
2.25
-
V
85
100
115
°C
-
100
-
mA/°C
Oscillation Period
LOGIC INPUT AND OUTPUT
t_OSC
C_TIME = 15nF
2.4
3.0
3.6
ms
TOEN Input High
2.0
-
-
V
TOEN and EN Input Low
-
-
0.8
V
IREF and IMIN Input High
1.2
-
-
V
IREF and IMIN Input Low
-
-
0.4
V
STATUS/FAULT Sink Current
Pin Voltage = 0.8V
5
-
-
mA
Typical Operating Performance The test conditions for the Typical Operating Performance are: V_IN = 5V, T_A = +25°C,
R_IREF = R_IMIN = 80kΩ, V_BAT = 3.7V, Unless Otherwise Noted.
4.2015
4.2010
4.2005
4.2000
R_IREF = 40kΩ
4.1995
4.1990
4.1985
4.1980
4.1975
0
0.3
0.6
0.9
1.2
1.5
CHARGE CURRENT (A)
FIGURE 1. CHARGER OUTPUT VOLTAGE vs CHARGE
CURRENT
4.210
4.208
4.206
CHARGE CURRENT = 50mA
4.204
4.202
4.200
4.198
4.196
4.194
4.192
4.190
0
20
40
60
80 100 120
TEMPERATURE (°C)
FIGURE 2. CHARGER OUTPUT VOLTAGE vs TEMPERATURE
4
FN9105.9
December 17, 2007