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LTC4009-2_15 Datasheet, PDF (4/28 Pages) Linear Technology – High Efficiency, Multi-Chemistry Battery Charger
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LTC4009
LTC4009-1/LTC4009-2
Electrical Characteristics The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. DCIN = 20V, BAT = 12V, GND = 0V unless otherwise noted. (Note 2)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VIH
RIN
IDCS
ICLPS
ILEAK-BAT
SHDN Input Voltage High
SHDN Pull-Down Resistance
DCIN Shutdown Current
CLP Shutdown Current
BAT Leakage Current
l 1.4
V
50
kΩ
SHDN = 0V
215
µA
CLP = 12V, SHDN = 0V or DCDIV = 0V
l
9
18
µA
SHDN = 0V or DCDIV = 0V,
0V ≤ CSP = CSN = BAT ≤ 20V
l –1.5
0
1.5
µA
ILEAK-CSN CSN Leakage Current
SHDN = 0V or DCDIV = 0V,
0V ≤ CSP = CSN = BAT ≤ 20V
l –1.5
0
1.5
µA
ILEAK-CSP CSP Leakage Current
SHDN = 0V or DCDIV = 0V,
0V ≤ CSP = CSN = BAT ≤ 20V
l –1.5
0
1.5
µA
ILEAK-SW SW Leakage Current
SHDN = 0V or DCDIV = 0V,
0V ≤ SW ≤ 20V
l –1
0
2
µA
INTVDD Regulator
INTVDD Output Voltage
ΔVDD
Load Regulation
IDD
Short-Circuit Current (Note 6)
Switching Regulator
No Load
IDD = 20mA
INTVDD = 0V
l 4.85
5
5.15
V
–0.4
–1
%
50
85
130
mA
VCE
Charge Enable Threshold Voltage
CLP – BAT, CLP Rising
C-Grade
I-Grade
l 65
100
135
mV
l 60
140
mV
IITH
ITH Current
fTYP
Typical Switching Frequency
fMIN
Minimum Switching Frequency
DCMAX
Maximum Duty Cycle
tR-TG
TGATE Rise Time
tF-TG
TGATE Fall Time
tR-BG
BGATE Rise Time
tF-BG
BGATE Fall Time
tNO
TGATE, BGATE Non-Overlap Time
Float Voltage Select Inputs (LTC4009-1/LTC4009-2 Only)
ITH = 1.4V
CLOAD = 3.3nF
CLOAD = 3.3nF
CLOAD = 3.3nF, 10% – 90%
CLOAD = 3.3nF, 90% – 10%
CLOAD = 3.3nF, 10% – 90%
CLOAD = 3.3nF, 90% – 10%
CLOAD = 3.3nF, 10% – 10%
–40/+90
µA
467
550
633
kHz
20
25
kHz
98
99
%
60
110
ns
50
110
ns
60
110
ns
60
110
ns
110
ns
VIL
Input Voltage Low
VIH
Input Voltage High
IIN
Input Current
Indicator Outputs
0V ≤ VIN ≤ 5V
0.5
V
3.5
V
–10
10
µA
VOL
Output Voltage Low
ILEAK
Output Leakage
IC10
CHRG C/10 Current Sink
ILOAD = 100µA, PROG = 1.2V
500
mV
SHDN = 0V, DCDIV = 0V, VOUT = 20V
l –10
10
µA
CHRG = 2.5V
l 15
25
38
µA
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC4009C is guaranteed to meet performance specifications
over the 0°C to 85°C operating temperature range. The LTC4009I is
guaranteed to meet performance specifications over the –40°C to 125°C
operating temperature range.
Note 3: Operating junction temperature TJ (in °C) is calculated from
the ambient temperature TA and the total continuous package power
dissipation PD (in watts) by the formula TJ = TA + (θJA • PD). Refer to the
Applications Information section for details.
Note 4: All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to GND, unless otherwise
specified.
Note 5: This threshold is guaranteed to be satisfied if CLP = DCIN when
the LTC4009 exits shutdown.
Note 6: Output current may be limited by internal power dissipation. Refer
to the Applications Information section for details.
4009fd

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