參數(shù)資料
型號(hào)： LTC1980EGN
廠商： LINEAR TECHNOLOGY CORP
元件分類： 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
文件頁數(shù)： 2/16頁
文件大?。?/td> 463K
代理商： LTC1980EGN
LTC1980
2
1980i
ABSOLUTEW
(Note 1)
W
W
U
PACKAGE/ORDER U
U
W
V
REG
to GND............................................. –0.5V to 12V
V
BAT
to GND ............................................. –0.5V to 12V
PROG, I
SENSE
.............................................. –0.5V to 5V
PROGT, REGFB, V
C
, BATT1, BATT2
TIMER, SS ............................................ –0.5V to V
BIAS2
LDOFB, LDODRV .................................... –0.5V to V
REG
WA, V
BIAS1
, REG....................................... –0.5V to 12V
MODE ................................................... –0.5V to V
BIAS1
V
BIAS2
......................................................... –0.5V to 5V
OVP ............................................................ –0.5V to 5V
PGND to GND .................................... Connect Together
Operating Ambient Temperature Range
(Note 2) ................................................. –40
°
C to 85
°
C
Storage Temperature Range.................–65
°
C to 125
°
C
Lead Temperature (Soldering, 10 sec)................ 300
°
C
ORDER PART
NUMBER
1
2
3
4
5
6
7
8
9
10
11
12
TOP VIEW
GN PACKAGE
24-LEAD NARROW PLASTIC SSOP
24
23
22
21
20
19
18
17
16
15
14
13
SS
OVP
CAOUT
I
SENSE
GND
V
BIAS2
V
BAT
TIMER
MODE
REG
BGTDR
V
BIAS1
PROG
PROGT
REGFB
V
C
LDOFB
LDODRV
V
REG
WA
BATT1
BATT2
RGTDR
PGND
LTC1980EGN
T
JMAX
= 125
°
C,
θ
JA
= 85
°
C/W
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25
°
C. V
BAT
= 2.4V, V
REG
= 5V, V
BAT
unloaded.
SYMBOL
V
BAT
V
REG
V
FB
V
PROGT
I
BURST
PARAMETER
Positive Supply Voltage, V
BAT
Positive Supply Voltage, V
REG
Feedback Voltage
Voltage on PROGT Pin
Burst Mode Operation
Supply Current, Quiescent, V
REG
Supply Current, Quiescent, V
REG
Supply Current in Shutdown Mode, V
REG
Positive-Going Undervoltage Lockout Voltage
Undervoltage Lockout Hysteresis
Soft-Start Ramp Current
Output Float Voltage in Constant Voltage Mode
Output Float Voltage in Constant Voltage Mode
Output Float Voltage in Constant Voltage Mode
Output Float Voltage in Constant Voltage Mode
Output Float Voltage in Constant Voltage Mode
CONDITIONS
MIN
2.85
2.85
1.194
1.194
TYP
MAX
10
10
1.256
1.256
UNITS
V
V
V
V
REGFB Tied to V
C
PROGT Tied to V
C
Regulator Mode, REGFB = 1.5V
G
1.225
1.225
0.75
mA
I
HIGH
I
SHDN
V
UVL
V
UVHYS
I
SS
V
FLOAT0
V
FLOAT1
V
FLOAT2
V
FLOAT3
V
FLOAT4
Regulator Mode, REGFB = 0V
Mode = 0V
From Either V
BAT
or V
REG
From Either V
BAT
or V
REG
BATT1 = 0, BATT2 = 0, Charger Mode
BATT1 = 0, BATT2 = 0
BATT1 = 0, BATT2 = 0
BATT1 = 0, BATT2 = 1 (Note 3)
BATT1 = 0, BATT2 = 1 (Note 3)
BATT1 = Open, BATT2 = Don’t Care
Measured from OVP Input
BATT2 = 0, BATT1 = 0 or 1
G
2
4.3
15
2.85
mA
μ
A
2.45
2.7
100
10
4.1
4.2
8.2
8.4
1.225
V
mV
μ
A
G
4.059
4.158
8.118
8.316
1.207
4.141
4.242
8.282
8.484
1.243
V
V
V
V
V
G
G
G
G
V
RCHG0
Recharge Threshold, Delta Voltage with Respect
to Float Voltage
Recharge Threshold, Delta Voltage with Respect
to Float Voltage
200
mV
V
RCHG1
BATT2 = 1, BATT1 = 0 or 1
400
mV
The
G
denotes the specifications which apply over the full operating
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