參數(shù)資料
型號(hào): SG1845L
廠商: MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類: 穩(wěn)壓器
英文描述: CURRENT MODE PWM CONTROLLER
中文描述: 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, CQCC20
封裝: HERMETIC SEALED, CERAMIC, LCC-20
文件頁(yè)數(shù): 7/12頁(yè)
文件大小: 216K
代理商: SG1845L
C
U R R E N T
-M
O D E
PWM C
O N T R O L L E R
SG1844/SG1845 Series
P R O D U C T D A T A B O O K 1 9 9 6 / 1 9 9 7
7
Copyright 2000
Rev. 1.4 4/00
P
R O D U C T I O N
D
A T A
S
H E E T
C H A R A C T E R I S T I C C U RV E S
FIGURE 2.
— OSCILLATOR TEMPERATURE STABILITY
FIGURE 3.
— CURRENT SENSE TO OUTPUT DELAY vs.
TEMPERATURE
FIGURE 4.
— START-UP CURRENT vs. TEMPERATURE
FIGURE 1.
— DROPOUT VOLTAGE vs. TEMPERATURE
Junction Temperature - (
°
C)
F
-10
-75
-50
-25
0
25
50
75
100
125
-8
-6
-4
-2
0
V
= 15V
Duty Cycle = 50%
2
Junction Temperature - (
°
C)
M
8.0
-75
-50
-25
0
25
50
75
100
125
8.4
8.8
9.2
9.6
10.0
SG1844
SG1845
Junction Temperature - (
°
C)
C
120
-75
-50
-25
0
25
50
75
100
125
140
160
180
200
220
V
PIN3
= 1.1V
Junction Temperature - (
°
C)
S
0.2
-75
-50
-25
0
25
50
75
100
125
0.3
0.4
0.5
0.6
0.7
SG1844
SG1845
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