MAX749ESA Maxim Integrated Products, MAX749ESA Datasheet - Page 3
MAX749ESA
Manufacturer Part Number
MAX749ESA
Description
Display Drivers Digitally Adjustable able LCD Bias Supply
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX749CPA.pdf
(12 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MAX749ESA
Manufacturer:
MAXIM
Quantity:
12
Company:
Part Number:
MAX749ESA+
Manufacturer:
TI
Quantity:
3 500
Part Number:
MAX749ESA+T
Manufacturer:
MAXIM/美信
Quantity:
20 000
__________________________________________Typical Operating Characteristics
(T
A
= +25°C, L = 47µH, unless otherwise noted.)
85
80
75
70
65
0
10
EFFICIENCY vs. OUTPUT
-24V
OUTPUT CURRENT (mA)
CURRENT – PNP
20
_______________________________________________________________________________________
400
350
300
250
200
150
100
50
85
80
75
70
65
V+ = 3V
R
R
TRANSISTOR: ZTX750
30
0
BASE
SENSE
-24
2
= 470
LOAD CURRENT vs. INPUT VOLTAGE
R
R
TRANSISTOR = ZTX750
40
= 0.25
BASE
SENSE
-22
Digitally Adjustable LCD Bias Supply
-12V
V+ = 3V
R
R
TRANSISTOR : ZTX750
BASE
SENSE
-5V
-20
= 470
= 0.25
50
3
= 470
OUTPUT VOLTAGE (V)
INPUT VOLTAGE (V)
OUTPUT VOLTAGE
= 0.25
-18
-5mA
EFFICIENCY vs.
-16
60
-20mA
-14
4
-12
-48V
80
78
76
74
72
70
68
66
64
-24V
-10
-12V
0
5
-5V
-8
-40mA
10
-6
20
EFFICIENCY vs. OUTPUT
OUTPUT CURRENT (mA)
-24V
6
-4
30
CURRENT – PNP
40
V+ = 3V
R
R
TRANSISTOR = ZTX750
BASE
SENSE
50
-12V
60
500
450
400
350
300
250
200
150
100
= 160
85
80
75
70
65
50
= 0.25
0
70
-24
2
80
-5V
-20mA
LOAD CURRENT vs. INPUT VOLTAGE
R
R
TRANSISTOR = ZTX750
V+ = 5V
R
TRANSISTOR : SMD10P05L
-22
BASE
SENSE
SENSE
90
-20
= 160
= 0.25
100
= 0.25
3
OUTPUT VOLTAGE (V)
-18
OUTPUT VOLTAGE
INPUT VOLTAGE (V)
EFFICIENCY vs.
-16
-5mA
85
80
75
70
65
-14
4
-48V
-12
0
-24V
-40mA
-5V
-12V
-10
5
V+ = 5V
R
TRANSISTOR: SMD10P05L
5
SENSE
10
-8
EFFICIENCY vs. OUTPUT
OUTPUT CURRENT (mA)
CURRENT – MOSFET
-6
15
= 0.25
-12V
20
-4
6
-5V
25
30
-24V
35
40
45
50
3