ISL6292 Datasheet, PDF (3/19 Pages) Intersil Corporation – Li-ion/Li Polymer Battery Charger

ISL6292
Electrical Specifications
Typical values are tested at VIN = 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
TEMPERATURE MONITORING
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
1.40 1.50 1.60
V
0.34 0.38 0.42
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
4.201
4.2005
4.2
R_IREF = 40kΩ
4.1995
4.199
4.1985
4.198
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
3
FN9105.6
July 25, 2005