參數(shù)資料
型號(hào)： LTC1929CG
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： Isolated Flyback Switching Regulator with 9V Output
中文描述： 3 A DUAL SWITCHING CONTROLLER, 310 kHz SWITCHING FREQ-MAX, PDSO28
封裝： 0.209 INCH, PLASTIC, SSOP-28
文件頁數(shù)： 3/24頁
文件大小： 233K
代理商： LTC1929CG
3
LTC1929
SYMBOL
I
SDLHO
I
SENSE
DF
MAX
PARAMETER
Shutdown Latch Disable Current
Total Sense Pins Source Current
Maximum Duty Factor
Top Gate Transition Time:
Rise Time
Fall Time
Bottom Gate Transition Time:
Rise Time
Fall Time
Top Gate Off to Bottom Gate On Delay
Synchronous Switch-On Delay Time
Bottom Gate Off to Top Gate On Delay
Top Switch-On Delay Time
Internal V
CC
Regulator
V
INTVCC
Internal V
CC
Voltage
V
LDO
INT
INTV
CC
Load Regulation
V
LDO
EXT
EXTV
CC
Voltage Drop
V
EXTVCC
EXTV
CC
Switchover Voltage
V
LDOHYS
EXTV
CC
Switchover Hysteresis
Oscillator and Phase-Locked Loop
f
NOM
Nominal Frequency
f
LOW
Lowest Frequency
f
HIGH
Highest Frequency
R
PLLIN
PLLIN
Input Resistance
I
PLLFLTR
Phase Detector Output Current
Sinking Capability
Sourcing Capability
R
RELPHS
Controller 2-Controller 1 Phase
Differential Amplifier/Op Amp Gain Block (Note 5)
A
DA
Gain
CMRR
DA
Common Mode Rejection Ratio
R
IN
Input Resistance
V
OS
Input Offset Voltage
CONDITIONS
V
EAIN
= 0.5V
Each Channel: V
SENSE1
–
, 2
– = V
SENSE1
+
, 2
+ = 0V
In Dropout
MIN
TYP
1.6
–60
99.5
MAX
5
UNITS
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25
°
C. V
IN
= 15V, V
RUN/SS
= 5V unless otherwise noted.
The
G
denotes the specifications which apply over the full operating
μ
A
μ
A
%
98
TG1, 2 t
r
TG1, 2 t
f
C
LOAD
= 3300pF
C
LOAD
= 3300pF
30
40
90
90
ns
ns
BG1, 2 t
r
BG1, 2 t
f
TG/BG t
1D
C
LOAD
= 3300pF
C
LOAD
= 3300pF
30
20
90
90
ns
ns
C
LOAD
= 3300pF Each Driver
90
ns
BG/TG t
2D
C
LOAD
= 3300pF Each Driver
90
ns
6V < V
IN
< 30V; V
EXTVCC
= 4V
I
CC
= 0 to 20mA; V
EXTVCC
= 4V
I
CC
= 20mA; V
EXTVCC
= 5V
I
CC
= 20mA, EXTV
CC
Ramping Positive
I
CC
= 20mA, EXTV
CC
Ramping Negative
4.8
5.0
0.2
120
4.7
0.2
5.2
1.0
240
V
%
mV
G
4.5
V
V
V
PLLFLTR
= 1.2V
V
PLLFLTR
= 0V
V
PLLFLTR
≥
2.4V
200
110
270
220
140
310
50
250
170
350
kHz
kHz
kHz
k
f
PLLIN
< f
OSC
f
PLLIN
> f
OSC
–15
15
180
μ
A
μ
A
Deg
Differential Amp Mode
Differential Amp Mode; 0V < V
CM
< 5V
Differential Amp Mode; Measured at V
OS
+ Input
Op Amp Mode; V
CM
= 2.5V; V
DIFFOUT
= 5V;
I
DIFFOUT
= 1mA
Op Amp Mode
Op Amp Mode; 0.7V
≤
V
DIFFOUT
< 10V
Op Amp Mode
Op Amp Mode; 0V < V
CM
< 3V
Op Amp Mode; 6V < V
IN
< 30V
Op Amp Mode; V
DIFFOUT
= 0V
Op Amp Mode; I
DIFFOUT
= 1mA
Op Amp Mode; I
DIFFOUT
= 1mA
Op Amp Mode; R
L
= 2k
0.995
46
1
1.005
V/V
dB
k
mV
55
80
6
I
B
A
OL
V
CM
CMRR
OA
PSRR
OA
I
CL
V
O(MAX)
GBW
SR
Input Bias Current
Open Loop DC Gain
Common Mode Input Voltage Range
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Maximum Output Current
Maximum Output Voltage
Gain-Bandwidth Product
Slew Rate
30
5000
200
nA
V/mV
0
3
V
70
70
10
10
90
90
35
11
2
5
dB
dB
mA
V
MHz
V/
μ
s
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