參數(shù)資料
型號(hào): LTC1698ES
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: Isolated Secondary Synchronous Rectifier Controller
中文描述: SWITCHING CONTROLLER, PDSO16
封裝: 0.150 INCH, PLASTIC, SO-16
文件頁(yè)數(shù): 2/24頁(yè)
文件大?。?/td> 1047K
代理商: LTC1698ES
2
LTC1698
1698f
(Note 1)
V
DD
, PWRGD ....................................................... 13.2V
Input Voltage
MARGIN, V
FB
, OVPIN, I
SNSGND
, I
SNS
... –0.3V to 5.3V
SYNC..................................................... –14V to 14V
Output Voltage
V
COMP
, I
COMP
(Note 2)......................... –0.3V to 5.3V
Power Dissipation.............................................. 500mW
Operating Temperature Range
LTC1698E (Note 3)............................ –40
°
C to 85
°
C
LTC1698I........................................... –40
°
C to 85
°
C
Storage Temperature Range................. –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)..................300
°
C
ABSOLUTE
AXI
U
RATIU
W
W
W
PACKAGE/ORDER I
FOR
ATIO
W
U
U
ORDER PART
NUMBER
LTC1698EGN
LTC1698ES
LTC1698IGN
LTC1698IS
T
JMAX
= 125
°
C,
θ
JA
= 130
°
C/W (GN)
T
JMAX
= 125
°
C,
θ
JA
= 110
°
C/W (SO)
GN PACKAGE
16-LEAD PLASTIC SSOP
S PACKAGE
16-LEAD PLASTIC SO
1
2
3
4
5
6
7
8
TOP VIEW
16
15
14
13
12
11
10
9
V
DD
CG
PGND
GND
OPTODRV
V
COMP
MARGIN
V
FB
FG
SYNC
V
AUX
I
COMP
I
SNS
I
SNSGND
PWRGD
OVPIN
The
G
indicates specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25
°
C. V
DD
= 8V, unless otherwise noted. (Note 4)
ELECTRICAL CHARACTERISTICS
Consult LTC Marketing for parts specified with wider operating temperature ranges.
SYMBOL
V
DD
V
UVLO
I
VDD
PARAMETER
Supply Voltage
Undervoltage Lockout
V
DD
Supply Current
CONDITIONS
MIN
6
TYP
8
4
MAX
12.6
UNITS
G
V
V
V
FB
, OVPIN, V
ISNS
, V
ISNSGND
= 0V,
C
FG
= C
CG
= 1000pF, C
VAUX
= 0.1
μ
F,
V
SYNC
= 0V
f
SYNC
= 100kHz (Note 5)
G
1.8
5.0
4
mA
mA
MARGIN and Error Amplifier
V
FB
Feedback Voltage
MARGIN = Open, V
COMP
= 1V (Note 7)
1.223
1.215
1.233
1.233
0.05
1.65
16.5
5
–5
90
2
2
–25
7
1.243
1.251
1
V
V
G
I
VFB
V
MARGIN
R
MARGIN
V
FB
Feedback Input Current
MARGIN Voltage
MARGIN Input Resistance
Feedback Voltage Adjustment
V
FB
= 1.233V
MARGIN = Open
G
μ
A
V
k
%
%
dB
MHz
V
MARGIN
= 3.3V
V
MARGIN
= 0V
V
COMP
= 0.8V to 1.2V, Load = 2k
, 100pF
No Load (Note 6)
V
FB
= 0V
V
FB
= 0V
V
FB
= 5V, V
COMP
= 1.233V
G
G
4
6
–6
65
–4
G
ERR
BW
ERR
V
CLAMP
I
VCOMP
Error Amplifier Open-Loop DC Gain
Error Amplifier Unity-Gain Bandwidth
Error Amplifier Output Clamp Voltage
Error Amplifier Source Current
Error Amplifier Sink Current
G
V
G
G
–10
mA
mA
3
OPTODRV
G
OPTO
BW
OPTO
V
OPTOHIGH
Opto Driver DC Gain
Opto Driver Unity-Gain Bandwidth
Opto Driver Output High Voltage
OVPIN, V
ISNS
, V
ISNSGND
= 0V
No Load (Note 6)
V
FB
, OVPIN, V
ISNSGND
= 0V, V
ISNS
= –50mV,
I
OPTODRV
= –10mA
OVPIN, V
ISNSGND
, V
ISNS
= 0V, V
FB
= 1.233V
G
4.75
5
1
5.25
V/V
MHz
G
4
5
V
I
OPTOSC
Opto Driver Output Short-Circuit Current
G
–50
–25
–10
mA
GN PART MARKING
1698
1698I
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