參數(shù)資料
型號(hào)： LTC1980EGN
廠商： LINEAR TECHNOLOGY CORP
元件分類(lèi)： 穩(wěn)壓器
英文描述： Combination Battery Charger and DC/DC Converter
中文描述： BATTERY CHARGE CONTROLLER, 340 kHz SWITCHING FREQ-MAX, PDSO24
封裝： 0.150 INCH, PLASTIC, SSOP-24
文件頁(yè)數(shù)： 3/16頁(yè)
文件大?。?/td> 463K
代理商： LTC1980EGN
LTC1980
3
1980i
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25
°
C. V
BAT
= 2.4V, V
REG
= 5V, V
BAT
unloaded.
SYMBOL
V
RCHG2
PARAMETER
Recharge Threshold, Delta Voltage with Respect
to Float Voltage, Measured at OVP
Charger Shorted Cell Threshold
Charger Shorted Cell Threshold
Input Bias Current, Low Dropout Regulator
Transconductance, Low Dropout Regulator
Output Low Voltage, Low Dropout Regulator
Output High Voltage, Low Dropout Regulator
Low Dropout Regulator Output Current, Source/Sink
Error Amplifier Open-Loop Voltage Gain
Error Amplifier Input Bias Current
Error Amplifier Output Low Voltage
Error Amplifier Output High Voltage
Error Amplifier Output Source Current
Error Amplifier Output Sink Current
Float Voltage Error Amplifier Transconductance
CONDITIONS
BATT 1 = Open
MIN
TYP
60
MAX
UNITS
mV
V
LT0
V
LT1
I
BLDO
g
mldo
V
OLLDO
V
OHLDO
I
OUTLDO
A
VOL
I
BEA
V
OLEA
V
OHEA
I
OUT
BATT2 = 0
BATT2 = 1
Measured at LDOFB Pin
Measured from LDOFB to LDODRV
2.55
5.2
2.7
5.4
1.0
350
2.8
5.65
V
V
μ
A
μ
mhos
0.1
V
V
V
REG
– 0.1
±
20
60
μ
A
dB
μ
A
V
V
mA
mA
From REGFB to V
C
–0.1
0
1.4
0.1
0.5
2
SS = Open
0.5
–1.2
65
g
mflt
Measured from OVP to SS,
Charger Mode, BATT1 = Open
μ
mhos
I
BFLT
Float Voltage Error Amplifier Input Current
(Measured at OVP Input)
Current Amplifier Offset Voltage
Input Bias Current, I
SENSE
Input
Current Amplifier Voltage Gain
–0.1
0.1
μ
A
V
OS1
I
BIS
A
VCA
–6
6
mV
μ
A
V/V
–100
2.44
Measured from I
SENSE
to
CAOUT Pin
2.3
2.55
R
PROG
I
PROG
f
S
t
r
, t
f
t
BREAK
f
TIMER
I
TIMER1
I
TIMER2
R
REG
I
REGPD
I
REGLK
V
VTHREG
V
IL1
PROG Pin On Resistance
PROG Pin Leakage Current
Switching Frequency
Driver Output Transition Times
Driver Output Break Times
Timer Frequency
TIMER Pin Source Current
TIMER Pin Sink Current
REG On Resistance
REG Pull-Down Current
REG Leakage Current
REG Logic Threshold
Digital Input Low Voltage,
Negative-Going, Wall Adapter (WA)
Digital Input High Voltage,
Positive-Going, Wall Adapter (WA)
Digital Input Low Voltage, BATT1
Digital Input High Voltage, BATT1
400
100
300
10
100
4.5
–4
4
68
5
60
nA
kHz
ns
ns
kHz
μ
A
μ
A
μ
A
nA
G
260
340
C
L
= 15pF
V
BAT
= V
REG
= 10V
C = 1000pF
2
9
0.3
1.185
1.3
1.247
V
V
V
REG
= 5V
1.221
V
IH1
V
REG
= 5V
1.195
1.226
1.257
V
V
IL2
V
IH2
100
mV
V
BIAS2
–
100mV
V
The
G
denotes the specifications which apply over the full operating
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