參數(shù)資料
型號: ISL6564
廠商: Intersil Corporation
英文描述: PWM Controller with Wide Input Range 8-CDIP -55 to 125
中文描述: 多相PWM控制器,帶有線性6位DAC能精密的RDS(ON)或DCR差分電流檢測
文件頁數(shù): 9/27頁
文件大?。?/td> 798K
代理商: ISL6564
9
FN9156.2
December 27, 2004
PIN-ADJUSTABLE OFFSET
Voltage at OFS pin
Offset resistor connected to ground
388
400
412
mV
VCC = 5.000V, offset resistor connected to VCC
2.91
3.0
3.09
V
Maximum OFS Source and Sink Current
-
-
50
μ
A
OSCILLATOR
Accuracy
R
T
= 100k
260
300
345
kHz
Adjustment Range
0.08
-
1.5
MHz
Sawtooth Amplitude
-
2
-
V
Max Duty Cycle
-
66.7
-
%
ERROR AMPLIFIER
Open-Loop Gain
R
L
= 10k
to ground
-
80
-
dB
Open-Loop Bandwidth
C
L
= 100pF, R
L
= 10k
to ground
-
18
-
MHz
Maximum Output Voltage
4.0
4.3
-
V
Output High Voltage @ 2mA
3.7
-
-
V
Output Low Voltage @ 2mA
-
-
1.35
V
REMOTE-SENSE AMPLIFIER
Bandwidth
-
20
-
MHz
Output Voltage @ 1mA load
VSEN - RGND = 2.5V
2.485
2.500
2.515
V
PWM OUTPUT
PWM Output Voltage LOW
Iload = ±500
μ
A
-
-
0.3
V
PWM Output Voltage HIGH
Iload = ±500
μ
A
4.0
-
-
V
DRIVER ENABLE OUTPUT
DRVEN Output Voltage LOW
Iload = ±1mA
-
-
0.3
V
DRVEN Output Voltage HIGH
Iload = ±1mA
4.0
-
-
V
SENSE CURRENT OUTPUT
Sensed Current Accuracy
ISEN1 = ISEN2 = ISEN3 = ISEN4 = 80
μ
A
77
86
95
μ
A
Overcurrent Trip Level
90
105
120
μ
A
Maximum voltage at IDROOP and IOUT
-
-
2
V
POWER GOOD AND PROTECTION MONITORS
PGOOD Low Voltage
I
PGOOD
= 4mA
-
-
0.3
V
Undervoltage Offset From VID
VSEN Falling
70
75
80
%VID
Overvoltage Threshold
Voltage above VID, After Soft Start (Note 4)
180
200
230
mV
Before Enable
1.45
1.5
1.55
V
VCC < POR Threshold
1.7
1.8
1.87
V
Overvoltage Reset Voltage
VCC
POR Threshold, VSEN Falling
-
0.6
-
V
VCC < POR Threshold
-
1.5
-
V
OVP Drive Voltage
I
OVP
= -10mA, VCC = 5V
3.0
3.6
5.0
V
NOTES:
3. When using the internal shunt regulator, VCC is clamped to 6.2V (max). Current must be limited to 25mA or less.
4. These parts are designed and adjusted for accuracy with all errors in the voltage loop included.
5. During soft-start, VDAC rises from 0 to VID. The overvoltage trip level is the higher of 1.5V and VDAC + 0.2V.
Electrical Specifications
Operating Conditions: VCC = 5V or ICC < 25mA (Note 3).
Unless Otherwise Specified.
(Continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
ISL6564
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