LTC4063 Просмотр технического описания (PDF) - Linear Technology
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LTC4063
Linear Technology
LTC4063 Datasheet PDF : 20 Pages
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LTC4063
ELECTRICAL CHARACTERISTICS The ● indicates the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 5V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
IDETECT Charge Current Detection Threshold
∆VRECHRG
tTERM
tRECHRG
tTIMER
tSS
TLIM
Recharge Threshold Voltage
Termination Comparator Filter Time
Recharge Comparator Filter Time
Charge Cycle Time
Soft-Start Time
Junction Temperature in Constant
Temperature Mode
RDET = 1k, 0°C ≤ TA ≤ 85°C
RDET = 2k, 0°C ≤ TA ≤ 85°C
RDET = 10k, 0°C ≤ TA ≤ 85°C
RDET = 20k, 0°C ≤ TA ≤ 85°C
VFLOAT – VRECHRG, 0°C ≤ TA ≤ 85°C
Current Termination Mode
CTIMER = 0.1µF
IBAT from 0 to ICHG
90
100 110
mA
45
50
55
mA
8.5
10
11.5
mA
4
5
6
mA
75
100 125
mV
1
1.5
2.2
ms
3
7
14
ms
2.55
3
3.45
Hour
100
µs
105
°C
RON
VBAT-LDO
IBAT-LDO
Power FET “ON” Resistance
(Between VCC and BAT)
LDO Supply Voltage (BAT)
LDO Supply Current (from BAT)
IBAT-LDO-SD LDO Supply Current in Shutdown
VFB
FB Regulated Voltage
VFB(LINE) VFB Line Regulation
VFB(LOAD) VFB Load Regulation
VLDOEN LDOEN Input Threshold Voltage (Rising)
VCC < VBAT, IOUT = 0mA
VCC > VBAT, IOUT = 0mA (Note 6)
VBAT = 4.4V
VBAT = 3.7V, IOUT = 1mA
VBAT = 2.65V to 4.4V, IOUT = 1mA
IOUT = 1mA to 100mA, VBAT = 4.4V
LDOEN Rising, VBAT = 4.4V
Hysteresis
375
mΩ
2.65
4.4
V
15
25
µA
9
18
µA
2.5
5
µA
● 784
800
816
mV
●
1
4
mV
●
1
4
mV
0.4
0.7
1
V
100
mV
RLDOEN
VDO
VLDOUVLO
LDOEN Pin Pull-Down Resistor
LDO Dropout Voltage
LDO Undervoltage Lockout Threshold
IOUT = 100mA, VOUT = 3V
VBAT from High to Low
Hysteresis
● 1.2
2
5
MΩ
125 200
mV
2.45 2.55 2.65
V
100
mV
IFB
ISC
VNO(RMS)
FB Pin Current
Short-Circuit Output Current
Output Voltage Noise
VOUT = 0V
VOUT = 3V, IOUT = 100mA, COUT = 2.2µF,
10Hz ≤ f ≤ 100kHz
–25
0
500
135
25
nA
mA
µVRMS
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 LTC4063EDD is guaranteed to meet performance specifica-
tions from 0°C to 70°C. Specifications over the – 40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3: Failure to correctly solder the Exposed Pad of the package to the
PC board will result in a thermal resistance much higher than 40°C/W.
Note 4: Supply current includes PROG pin current and IDET pin current
(approximately 100µA each) but does not include any current delivered to
the battery through the BAT pin (approximately 100mA).
Note 5: Does not include LDO supply current.
Note 6: The LDO is partially powered from VCC, thus reducing the supply
current from the BAT pin.
Note 7: This IC includes overtemperature protection that is intended to
protect the device during momentary overload conditions.
Overtemperature protection will become active at a junction temperature
greater than the maximum operating temperature. Continuous operation
above the specified maximum operating junction temperature may impair
device reliability.
Note 8: Defined by long term current density limitations.
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