參數(shù)資料
型號(hào): LX1665CDW-TR
廠商: MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類(lèi): 穩(wěn)壓器
英文描述: 1.5 A SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO18
封裝: ROHS COMPLIANT, PLASTIC, SOIC-18
文件頁(yè)數(shù): 12/17頁(yè)
文件大?。?/td> 395K
代理商: LX1665CDW-TR
DUAL OUTPUT PWM CONTROLLERS WITH 5-BIT DAC
LX1664/64A, LX1665/65A
PRODUCT DA T ABOOK 1996/1997
Copyright 1999
Rev. 1.3a 11/04
4
P RODUCTION D ATA S HEET
ELECTRICAL CHARACTERISTICS
Table 1 - Adaptive Transient Voltage Output (Output Voltage Setpoint Typical)
0A
5A/Div.
Time - 100s/Div.
2.8V
100mV/Div.
Output
Load
0
to
14A
Output
Voltage
FIGURE 1 — Output Transient Response
(using 5m
sense resistor and 5H output inductor)
Note:
Adaptive Transient Voltage Output
In order to improve transient response a 40mV
offset is built into the Current Sense comparator.
At high currents, the peak output voltage will be
lower than the nominal set point, as shown in
Figure 1. The actual output voltage will be a
function of the sense resistor, the output current
and output ripple.
01111
1.34V
1.30V
01110
1.39V
1.35V
01101
1.44V
1.40V
01100
1.49V
1.45V
01011
1.54V
1.50V
01010
1.59V
1.55V
01001
1.64V
1.60V
01000
1.69V
1.65V
00111
1.74V
1.70V
00110
1.79V
1.75V
00101
1.84V
1.80V
00100
1.89V
1.85V
00011
1.94V
1.90V
00010
1.99V
1.95V
00001
2.04V
2.00V
00000
2.09V
2.05V
11111
2.04V
2.00V
11110
2.14V
2.10V
11101
2.24V
2.20V
11100
2.34V
2.30V
11011
2.44V
2.40V
11010
2.54V
2.50V
11001
2.64V
2.60V
11000
2.74V
2.70V
10111
2.84V
2.80V
10110
2.94V
2.90V
10101
3.04V
3.00V
10100
3.14V
3.10V
10011
3.24V
3.20V
10010
3.34V
3.30V
10001
3.44V
3.40V
10000
3.54V
3.50V
VID4
VID3
VID2
VID1
VID0
Processor Pins
Output Voltage (V
CC_CORE)
0 = Ground, 1 = Open (Floating)
0.0A
Nominal Output*
* Nominal = DAC setpoint voltage with no adaptive output voltage positioning.
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