參數(shù)資料
型號: ISL6721AVZ
廠商: INTERSIL CORP
元件分類: 穩(wěn)壓器
英文描述: Flexible Single Ended Current Mode PWM Controller
中文描述: 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
封裝: 4.40 MM, ROHS COMPLIANT, PLASTIC, MO-153AB, TSSOP-16
文件頁數(shù): 5/20頁
文件大小: 481K
代理商: ISL6721AVZ
5
ERROR AMPLIFIER
Open Loop Voltage Gain
(Note 5)
60
90
-
dB
Gain-Bandwidth Product
(Note 5)
-
15
-
MHz
Reference Voltage Initial Accuracy
V
FB
= COMP, T
A
= 25
o
C (Note 5)
2.465
2.515
2.565
V
Reference Voltage
V
FB
= COMP
COMP = 4V, T
A
= 25
o
C
2.44
2.515
2.590
V
COMP to PWM Gain, A
COMP
0.31
0.33
0.35
V/V
COMP to PWM Offset
COMP = 4V (Note 5)
0.51
0.75
0.88
V
FB Input Bias Current
V
FB
= 0V
-2
0.1
2
μ
A
COMP Sink Current
COMP = 1.5V, V
FB
= 2.7V
2
6
-
mA
COMP Source Current
COMP = 1.5V, V
FB
= 2.3V
-0.2
-0.5
-
mA
COMP VOH
V
FB
= 2.3V
4.25
4.4
5.0
V
COMP VOL
V
FB
= 2.7V
0.4
0.8
1.2
V
PSRR
Frequency = 120Hz (Note 5)
60
80
-
dB
SS Clamp, V
COMP
SS = 2.5V, V
FB
= 0V, ISET = 2V
2.4
2.5
2.6
V
OSCILLATOR
Frequency Accuracy
289
318
347
kHz
Frequency Variation with VCC
T = 105
o
C (F
20V
- - F
9V
)/F
9V
T = -40
o
C (F
20V
- - F
9V
)/F
9V
-
2
2
3
3
%
Temperature Stability
(Note 5)
-
8
-
%
Minimum Charge and Discharge Time
(Note 5)
-
TBD
-
nS
Maximum Duty Cycle
(Note 6)
68
75
81
%
Comparator High Threshold - Free Running
(Note 5)
-
3
-
V
Comparator High Threshold - with External SYNCH
(Note 5)
-
4
-
V
Comparator Low Threshold
(Note 5)
-
1.5
-
V
Discharge Current
0 - 105
o
C
-40 - 105
o
C
0.75
0.70
1.0
1.0
1.2
1.2
mA
SYNCHRONIZATION
Input High Threshold
-
-
2.5
V
Input Pulse Width
25
-
-
nS
Input Frequency Range
(Note 5)
0.65x Free
Running
-
1.0
MHz
Input Impedance
-
4.5
-
k
VOH
R
LOAD
= 4.5k
2.5
-
-
V
VOL
R
LOAD
= open
-
-
0.1
V
SYNCH Advance
SYNCH rising edge to GATE falling
edge, C
GATE
= C
SYNCH
= 100pF
-
25
55
nS
Output Pulse Width
C
SYNCH
= 100pF
50
-
-
nS
Electrical Specifications
Recommended operating conditions unless otherwise noted. Refer to Block Diagram and Typical Application
schematic. 9V < V
CC
= V
C
< 20V
±10%, Rt = 11k
, Ct = 330 pF, T
A
= -40 to 105
o
C (Note 3), Typical values are
at T
A
= 25
o
C
(Continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
ISL6721
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