參數(shù)資料
型號(hào): MAX1514ETP
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 穩(wěn)壓器
英文描述: TFT-LCD Power-Supply Controllers
中文描述: SWITCHING CONTROLLER, 1725 kHz SWITCHING FREQ-MAX, PQCC20
封裝: 4 X 4 MM, 0.80 MM HEIGHT, MO-220-VGGD, TQFN-20
文件頁數(shù): 7/28頁
文件大小: 540K
代理商: MAX1514ETP
M
TFT-LCD Power-Supply Controllers
_______________________________________________________________________________________
7
Typical Operating Characteristics
(Circuit of Figure 1, V
IN
= 5V, V
MAIN
= 15V, V
GON
= 25V, V
GOFF
= -10V, V
LOGIC
= 3.3V, V
GAMMA
= 14.7V, T
A
= +25°C, unless other-
wise noted.)
STEP-UP OUTPUT VOLTAGE
vs. LOAD CURRENT
M
LOAD CURRENT (mA)
O
600
500
400
300
200
100
14.7
14.8
14.9
15.0
15.1
14.6
0
700
V
IN
= 5V
V
IN
= 15V
f
OSC
= 1.5MHz
STEP-UP EFFICIENCY
vs. LOAD CURRENT (1.5MHz)
M
LOAD CURRENT (mA)
E
700
600
500
400
300
200
100
50
60
70
80
90
100
40
0
800
V
IN
= 5.0V
V
IN
= 2.7V
V
IN
= 3.3V
STEP-UP REGULATOR
LOAD-TRANSIENT RESPONSE
MAX1513/14 toc03
4
μ
s/div
V
MAIN
100mV
AC-COUPLED
I
500mA/div
0.1A
I
L
1A/div
0A
STEP-UP REGULATOR
PULSED-LOAD-TRANSIENT RESPONSE
MAX1513/14 toc04
4
μ
s/div
V
MAIN
100mV/div
AC-COUPLED
I
MAIN
1A/div
0.1A
I
1A/div
0A
STEP-UP REGULATOR SOFT-START
MAX1513/14 toc05
400
μ
s/div
V
MAIN
5V/div
0V
I
L
2A/div
0A
POWER-UP SEQUENCE
MAX1513/14 toc06
4ms/div
V
5V/div
V
20V/div
V
GON
20V/div
V
GOFF
10V/div
V
GAMMA
20V/div
0V
0V
0V
0V
0V
LINEAR REGULATOR REG L
LOAD-TRANSIENT RESPONSE
MAX1513/14 toc07
20
μ
s/div
V
50mV/div
AC-COUPLED
I
500mA/div
0mA
BUFFER-AMPLIFIER SUPPLY CURRENT
vs. SUPPLY VOLTAGE
M
SUPPLY VOLTAGE (V)
S
12
10
8
6
0.2
0.4
0.6
0.8
1.0
1.2
0
4
14
NO LOAD
V
FBPB
= V
SUPB
/ 2
BUFFER-AMPLIFIER SMALL-SIGNAL
STEP RESPONSE
MAX1513/14 toc09
400ns/div
V
FBPB
50mV/div
AC-COUPLED
V
OUTB
50mV/div
AC-COUPLED
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