參數(shù)資料
型號： ISL6559
廠商： Intersil Corporation
英文描述： Multi-Phase PWM Controller
中文描述： 多相PWM控制器
文件頁數(shù)： 5/21頁
文件大?。?/td> 606K
代理商： ISL6559
5
FN9084.8
December 29, 2004
Functional Pin Description
GND
Bias and reference ground for the IC.
OVP
Over-voltage protection pin. This pin pulls to VCC and is
latched when an over-voltage condition is detected. Connect
this pin to the gate of an SCR or MOSFET tied across V
IN
and ground to prevent damage to a load device.
VID4, VID3, VID2, VID1, VID0
The state of these five inputs program the internal DAC,
which provides the reference voltage for output regulation.
Connect these pins to either open-drain or active pull-up
type outputs. Pulling these pins above 2.9V can cause a
reference offset inaccuracy.
OFS
Connecting a resistor between this pin and ground creates a
positive offset voltage which is added to the DAC voltage,
allowing easy implementation of load-line regulation. For no
offset, simply tie this pin to ground.
FB and COMP
The internal error amplifier inverting input and output
respectively. Connect the external R-C feedback
compensation network of the regulator to these pins.
IOUT
The current carried out of this pin is proportional to output
current and can be used to incorporate output voltage droop
ERROR AMPLIFIER
Open-Loop Gain
R
L
= 10k
to ground
-
72
-
dB
Open-Loop Bandwidth
C
L
= 100pF, R
L
= 10k
to ground
-
18
-
MHz
Slew Rate
C
L
= 100pF, Load = ±400mA
-
7.1
11
V/
μ
s
Maximum Output Voltage
R
L
= 10k
to ground
3.6
4.5
-
V
Source Current
3.0
7.0
9.5
mA
Sink Current
1.6
3.0
5.4
mA
REMOTE-SENSE AMPLIFIER
Input Impedance
-
80
-
k
Bandwidth
-
20
-
MHz
Slew Rate
-
6
-
V/
μ
s
SENSE CURRENT
IOUT Accuracy
ISEN1 = ISEN2 = ISEN3 = ISEN4 = 50
μ
A
-5
-
5
%
ISEN Offset Voltage
-
6
-
mV
Over-Current Trip Level
72
90
108
μ
A
POWER GOOD AND PROTECTION MONITORS
PGOOD Low Voltage
I
PGOOD
= 4mA
-
-
0.4
V
Under-Voltage Offset From VID
VSEN Falling
320
350
420
mV
Over-Voltage Threshold
VSEN Rising
2.08
2.13
2.20
V
OVP Voltage
I
OVP
= 100mA, VCC = 5V
2.2
3.28
4.0
V
NOTE:
3. These parts are designed and adjusted for accuracy within the system tolerance
Electrical Specifications
Operating Conditions: VCC = 5V, T
A
= 0°C to 70°C. Unless Otherwise Specified.
(Continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
ISL6559CR (32 LEAD QFN)
TOP VIEW
ISL6559CB (28 LEAD SOIC)
TOP VIEW
GND
OVP
VID4
VID3
FB
IOUT
VDIFF
VSEN
RGND
EN
ISEN4
PWM4
PGOOD
ISEN3
GND
PWM3
VCC
GND
FS/DIS
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
OFS
VID2
COMP
PWM1
ISEN2
VID1
VID0
ISEN1
PWM2
V
32 31 30 29 28 27 26 25
N
V
O
G
E
F
P
I
V
V
R
G
G
V
P
VID2
VID1
VID0
NC
OFS
COMP
FB
NC
ISEN4
ISEN1
PWM1
PWM2
GND
ISEN2
ISEN3
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16
NC = NO CONNECT
24
23
22
21
20
19
18
17
PWM4
ISL6559
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ISL6559CBZ-T 功能描述:電流型 PWM 控制器 2 TO 4 PHS BUCK CNTRLR 2 8LD RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14
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