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参数资料
| 型号： | LTC4060EDHC#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 4/20页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHARGER NIMH/NICD 16DFN |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电池化学： | 镍镉（NiCd）、镍金属氢化物（NiMH） |
| 电源电压： | 4.5 V ~ 10 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFDFN 裸露焊盘 |
| 供应商设备封装： | 16-DFN（5x3） |
| 包装： | 带卷 (TR) |
LTC4060
ELECTRICAL CHARACTERISTICS The ● indicates specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25 ° C. V CC = 5V, V BAT = 2.8V, GND = 0V unless otherwise specified. All
currents into the device pins are positive and all currents out of the device pins are negative. All voltages are referenced to GND
unless otherwise specified.
SYMBOL PARAMETER
V HTIH
NTC Pin Hot Charge Initiation Hysteresis Voltage
CONDITIONS
V NTC Increasing
MIN
TYP
100
MAX
UNITS
mV
V HTC
NTC Pin Hot Charge Cutoff Threshold Voltage
V NTC Decreasing, 4.5V ≤ V CC ≤ 10V
●
0.37 ?
0.4 ?
0.43 ?
V
V CC
V CC
V CC
V HTCH
V NDIS
NTC Pin Hot Charge Cutoff Hysteresis Voltage
NTC Pin Disable Threshold Voltage
V NTC Increasing
25
100
250
mV
mV
I NL
NTC Pin Pull-Down Current
V NTC = 2.5V
●
0.15
1.5
μ A
t ACC
Timer Accuracy
R PROG = 698 ? , C TIMER = 1.2nF and
–15
0
15
%
R PROG = 3480 ? , C TIMER = 470pF
Output Drivers
I DRV
Drive Pin Sink Current
V DRIVE = 4V
●
40
70
120
mA
R DRV
V OL
Drive Pin Resistance to V CC
ACP, CHRG Output Pins Low Voltage
V DRIVE = 4V, Not Charging
I ACP = I CHRG = 10mA
4700
0.8
?
V
I OH
ACP, CHRG Output Pins High Leakage Current
Outputs Inactive, V CHRG = V ACP = V CC
–2
2
μ A
Control Inputs
V IT
SHDN, SEL0, SEL1, CHEM, PAUSE Pins Digital
V CC = 10V
350
650
mV
Input Threshold Voltage
V ITH
SHDN, SEL0, SEL1, CHEM, PAUSE Pins Digital
50
mV
Input Hysteresis Voltage
I IPD
SHDN, SEL0, SEL1, CHEM Pins Digital Input
V CC = 10V, V IN = V CC
0.4
2
μ A
Pull-Down Current
I IPU
PAUSE Pin Digital Input Pull-Up Current
V IN = GND
–2
–0.4
μ A
Note 1: Absolute Maximum Ratings only indicate limits for survivability.
Operating the device beyond these limits may result in permanent damage.
Continuous or extended application of these maximum levels may
adversely affect device reliability.
Note 2: The LTC4060 is guaranteed to meet performance specifications
from 0 ° C to 70 ° C ambient temperature range and 0 ° C to 85 ° C junction
temperature range. Specifications over the –40 ° C to 85 ° C operating
ambient temperature range are assured by design, characterization and
correlation with statistical process controls.
Note 3: This IC includes overtemperature protection that is intended to
protect the device during momentary overload conditions. Overtempera-
ture protection is activated at a temperature of approximately 145 ° C,
which is above the specified maximum operating junction temperature.
Continuous operation above the specified maximum operation temperature
may result in device degradation or failure. Operating junction temperature
T J (in ° C) is calculated from the ambient temperature T A and the average
power dissipation P D (in watts) by the formula:
T J = T A + θ JA ? P D
Note 4: Short duration drops below the minimum V CC specification of
Note 5: Assumes that the external PNP pass transistor has negligible B-C
reverse leakage current when the collector is biased at 2.8V (V BAT for two
charged cells in series) and the base is biased at V CC .
Note 6: Assumes that the external PNP pass transistor has negligible B-E
reverse leakage current when the emitter is biased at 0V (V CC ) and the
base is biased at 5.6V (V BAT for four charged cells in series).
Note 7: The charge current specified is the regulated current through the
internal current sense resistor that flows into the external PNP pass
transistor’s emitter. Actual battery charging current is slightly less and
depends upon PNP alpha.
Note 8: Given as a per cell voltage (V BAT /Number of Cells).
Note 9: Supply current includes the current programming resistor current
of 2mA. The charger is paused and not charging the battery.
Note 10: The minimum V CC supply is set at 5V during this test to
compensate for voltage drops due to test socket contact resistance and 2A
of current. This ensures that the supply voltage delivered to the device
under test does not fall below the UVLO entry threshold. Specification at
the minimum V CC of 4.5V is assured by design and characterization.
several microseconds or less are ignored by the undervoltage detection
circuit.
4060f
4
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