MIC79110_13 Datasheet, PDF (4/16 Pages) Micrel Semiconductor – Simple 1.2A Linear Li-ion Battery Charger

Micrel, Inc.
MIC79110
Electrical Characteristics⁽⁴⁾ (Continued)
TA = 25°C with VIN = VOUT + 1V; ILOAD = 100µA; CBAT = 10µF; SD = 0V; RSET = 1kΩ. Bold values indicate –40ºC < TJ < +125°C; unless
otherwise specified.
Parameter
Condition
Min. Typ. Max. Units
Maximum Current Limit
RSET shorted to ground, VBAT = 0.9 × VNOM
VBAT Reverse Current
VIN = High impedance or ground
Digital End–of–Charge (DEOC) Output
1.25
1.65
2.5
A
4.2
20
µA
IEOC(8, ⁹⁾
REOC = 4kΩ Current Falling
35
65
50
mA
30
70
IEOC(8, ⁹⁾
REOC = 4kΩ Current Rising
50
95
70
mA
40
100
DEOC Logic–Low Voltage
IEOC = 5mA, IBAT = 700mA
0.74 0.95
V
DEOC Leakage Current
Logic HIGH = VIN = 16V
0.1
µA
DEOC On Resistance
VIN = +5V
REOC Maximum Current Limit
REOC shorted to ground
Analog Charge Indicator (ACHG) Output
150
190
Ω
0.5
1.0
2.0
mA
ISOURCE(10)
IBAT = 50mA
IBAT = 1.2A, TJ = –40°C to +85°C
37
46
55
µA
800
950 1150
Notes:
8. Output current IEOC when digital end-of-charge output goes high impedance. Currents greater than IEOC, the DEOC output is low, currents lower than
IEOC, DEOC is high impedance.
9. IEOC = (0.2V/REOC) × 1000.
10. ISOURCE is the current output from ACHG pin. A resistor to ground from the ACHG pin will program a voltage that is proportional to the output current.
September 23, 2013
4
Revision 2.1