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參數(shù)資料
| 型號： | LTC4000IUFD#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQCC28 |
| 封裝： | 4 X 5 MM, LEAD FREE, PLASTIC, MO-220WXXX-X, QFN-28 |
| 文件頁數(shù)： | 36/40頁 |
| 文件大?。?/td> | 428K |
| 代理商： | LTC4000IUFD#PBF |
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LTC4000
5
4000f
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 LTC4000 is tested under conditions such that TJ ≈ TA. The
LTC4000E is guaranteed to meet specifications from 0°C to 85°C junction
temperature. Specifications over the –40°C to 125°C operating junction
temperature range are assured by design, characterization and correlation
with statistical process controls. The LTC4000I is guaranteed over the
full –40°C to 125°C operating junction temperature range. Note that the
maximum ambient temperature consistent with these specifications is
elecTrical characTerisTics The
l
denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are at TA = 25°C. VIN = VCLN = 3V to 60V unless otherwise noted (Notes 2, 3).
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Battery PowerPath Control
Battery Discharge PowerPath Forward
Regulation Voltage
VBAT,CSN, 2.8V ≤ VBAT ≤ 60V
l
0.1
8
20
mV
Battery PowerPath Fast Reverse Turn-Off
Threshold Voltage
VBAT,CSN, 2.8V ≤ VBAT ≤ 60V, Not
Charging, VBGATE = VCSN – 2.5V,
IBGATE/VBAT,CSN ≥ 100μA/mV
l
–90
–50
–20
mV
Battery PowerPath Fast Forward Turn-On
Threshold Voltage
VBAT,CSN, 2.8V ≤ VCSN ≤ 60V,
VBGATE = VBAT – 1.5V,
IBGATE/ VBAT,CSN ≥ 100μA/mV
l
40
80
130
mV
Battery Gate Turn-Off Current
VBGATE = VCSN – 1.5V, VCSN ≥ VBAT,
VOFB < VOUT(INST_ON) and Charging
in Progress, or VCSN = VBAT and Not
Charging
–0.3
μA
Battery Gate Turn-On Current
VBGATE = VBAT – 1.5V, VCSN ≥ VBAT,
VOFB > VOUT(INST_ON) and Charging in
Progress, or VCSN = VBAT – 20mV
0.3
μA
IBGATE(FASTOFF)
Battery Gate Fast Turn-Off Current
VCSN = VBAT + 0.1V and Not
Charging, VBGATE = VCSN – 5V
–0.5
mA
IBGATE(FASTON)
Battery Gate Fast Turn-On Current
VCSN = VBAT – 0.1V,
VBGATE = VBAT – 1.5V
0.7
mA
VBGATE(ON)
Battery Gate Clamp Voltage
IBGATE = 2μA, VBAT = 12V to 60V,
VCSN = VBAT – 0.5V, Measure
VBAT – VBGATE
l
13
15
V
Battery Gate Off Voltage
IBGATE = – 2μA, VBAT = 2.8V to 60V,
VCSN = VBAT + 0.5V and not Charging,
Measure VCSN – VBGATE
l
0.45
0.7
V
BIAS Regulator Output and Control Pins
VBIAS
BIAS Output Voltage
No Load
l
2.4
2.9
3.5
V
VBIAS
BIAS Output Voltage Load Regulation
IBIAS = – 0.5mA
–0.5
–10
%
BIAS Output Short-Circuit Current
VBIAS = 0V
–12
mA
Transconductance of Error Amp
CC = 1V
0.5
mA/V
Open Loop DC Voltage Gain of Error Amp
CC = Open
80
dB
IITH(PULL_UP)
Pull-Up Current on the ITH Pin
VITH = 0V, VCC = 0V
–6
–5
–4
μA
IITH(PULL_DOWN)
Pull-Down Current on the ITH Pin
VITH = 0.4V, CC = Open
l
0.5
1
mA
Open Loop DC Voltage Gain of ITH Driver
ITH = Open
60
dB
determined by specific operating conditions in conjunction with board
layout, the rated package thermal impedance and other environmental
factors. The junction temperature (TJ, in °C) is calculated from the ambient
temperature (TA, in °C) and power dissipation (PD, in Watts) according to
the following formula:
TJ = TA + (PD θJA), where θJA (in °C/W) is the package thermal
impedance.
Note 3: All currents into pins are positive; all voltages are referenced to
GND unless otherwise noted.
Note 4: These parameters are guaranteed by design and are not 100%
tested.
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