參數(shù)資料
型號(hào): LT1512IN8
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: SEPIC Constant-Current/ Constant-Voltage Battery Charger
中文描述: 2.7 A BATTERY CHARGE CONTROLLER, 580 kHz SWITCHING FREQ-MAX, PDIP8
封裝: 0.300 INCH, PLASTIC, DIP-8
文件頁(yè)數(shù): 2/12頁(yè)
文件大小: 261K
代理商: LT1512IN8
2
LT1512
A
Input Voltage .......................................................... 30V
Switch Voltage........................................................ 40V
S/S Pin Voltage....................................................... 30V
FB Pin Voltage (Transient, 10ms) .........................
±
10V
V
FB
Pin Current.................................................... 10mA
I
FB
Pin Voltage (Transient, 10ms).........................
±
10V
Storage Temperature Range ................ –65
°
C to 150
°
C
Ambient Temperature Range
LT1512C (Note 3)....................................0
°
C to 70
°
C
LT1512I.............................................. –40
°
C to 85
°
C
Operating Junction Temperature Range
LT1512C (Note 3)............................ –20
°
C to 125
°
C
LT1512I............................................ –40
°
C to 125
°
C
Short Circuit ......................................... 0
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)................. 300
°
C
U
G
W
A
W
U
W
A
R
BSOLUTE
XI
TI
S
U
PACKAGE/ORDER U
SYMBOL
V
REF
PARAMETER
V
FB
Reference Voltage
CONDITIONS
Measured at FB Pin
V
C
= 0.8V
V
FB
= V
REF
MIN
1.233
1.228
TYP
1.245
1.245
300
MAX
1.257
1.262
550
600
0.03
–93
–90
35
0.05
1900
2300
350
2400
2.30
0.52
UNITS
V
V
G
FB Input Current
nA
nA
G
FB Reference Voltage Line Regulation
I
FB
Reference Voltage
2.7V
V
IN
25V, V
C
= 0.8V
Measured at I
FB
Pin
V
FB
= 0V, V
C
= 0.8V
V
IFB
= V
IREF
(Note 2)
2.7V
V
IN
25V, V
C
= 0.8V
I
C
=
±
25
μ
A
G
0.01
–100
–100
25
0.01
1500
%/V
mV
mV
μ
A
%/V
μ
mho
μ
mho
V
IREF
–107
–110
10
G
I
FB
Input Current
I
FB
Reference Voltage Line Regulation
Error Amplifier Transconductance
G
G
g
m
1100
700
120
G
Error Amplifier Source Current
Error Amplifier Sink Current
Error Amplifier Clamp Voltage
V
FB
= V
REF
– 150mV, V
C
= 1.5V
V
FB
= V
REF
+ 150mV, V
C
= 1.5V
High Clamp, V
FB
= 1V
Low Clamp, V
FB
= 1.5V
G
200
1400
1.95
0.40
500
1
500
500
μ
A
μ
A
V
V
V/V
G
1.70
0.25
A
V
Error Amplifier Voltage Gain
V
C
Pin Threshold
Switching Frequency
Duty Cycle = 0%
2.7V
V
IN
25V
0
°
C
T
J
125
°
C
–40
°
C
T
J
< 0
°
C (LT1512I)
0.8
450
430
400
88
1.25
550
580
580
V
f
kHz
kHz
kHz
%
ns
G
Maximum Switch Duty Cycle
Switch Current Limit Blanking Time
Output Switch Breakdown Voltage
G
95
130
47
260
BV
0
°
C
T
J
125
°
C
–40
°
C
T
J
< 20
°
C (LT1512I)
G
40
35
V
V
V
IN
= 5V, V
C
= 0.6V, V
FB
= V
REF
, I
FB
= 0V, V
SW
and S/S pins open, unless otherwise noted.
ELECTRICAL C
HARA TERISTICS
ORDER PART
NUMBER
T
JMAX
= 125
°
C,
θ
JA
= 100
°
C/W (N)
T
JMAX
= 125
°
C,
θ
JA
= 130
°
C/W (S)
Consult factory for Military grade parts.
1
2
3
4
8
7
6
5
TOP VIEW
V
C
FB
I
FB
S/S
V
SW
GND
GND S
V
IN
N8 PACKAGE
8-LEAD PDIP
S8 P
8-LEAD PLASTIC SO
S8 PART
MARKING
1512
1512I
LT1512CN8
LT1512CS8
LT1512IN8
LT1512IS8
NOTE: CONTACT FACTORY CONCERNING 16-LEAD
FUSED-LEAD GN PACKAGE WITH LOWER THERMAL
RESISTANCE
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