MAX5051AUI+ Maxim Integrated Products, MAX5051AUI+ Datasheet - Page 8

• Manufacturer Part Number: MAX5051AUI+
• Description: IC PWR SPLY CNTRLR 28-TSSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX5051AUI+

• Pwm Type: Voltage Mode
• Number Of Outputs: 1
• Frequency - Max: 500kHz
• Duty Cycle: 48%
• Voltage - Supply: 11 V ~ 76 V
• Buck: No
• Boost: Yes
• Flyback: Yes
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: Yes
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
• Frequency-max: 500kHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Parallelable, Clamped Two-Switch
Power-Supply Controller IC
8
(V
4.7µF, T
1.020
1.010
1.000
0.990
0.980
0.970
0.960
0.950
AVIN
170
165
160
155
150
145
140
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
_______________________________________________________________________________________
0
-50
-50
-50
= V
NORMALIZED SWITCHING FREQUENCY
A
SWITCHING
= +25°C, unless otherwise noted.)
PVIN
-25
-25
-25
DRVH AND DRVL SOURCING 50mA
DRVH AND DRVL SINKING 50mA
CURRENT-LIMIT THRESHOLD
DRVH AND DRVL R
= 12V, V
vs. TEMPERATURE
vs. TEMPERATURE
vs. TEMPERATURE
0
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
25
25
25
UVLO
50
50
50
DSON
75
75
75
= V
STT
100
100
100
= 3V, V
125
125
125
CON
130
120
110
100
100
-20
12
11
10
90
80
70
60
50
40
30
80
60
40
20
9
8
7
6
5
4
0
0.01
-40
Typical Operating Characteristics (continued)
-50
= 3V, R
SYNCIN TO SYNCOUT PROPAGATION
SYNCIN FALL TO SYNCOUT RISE
-25
-15
SYNCIN RISE TO SYNCOUT FALL
0.1
PHASE
DELAY vs. TEMPERATURE
OPEN-LOOP GAIN/PHASE
LXH SOURCING 10mA
LXL AND LXH R
RCOSC
vs. TEMPERATURE
10
0
TEMPERATURE (°C)
vs. FREQUENCY
TEMPERATURE (°C)
1
FREQUENCY (kHz)
25
35
= 24kΩ, C
10
LXH SINKING 10mA
GAIN
50
60
100
DSON
75
85
1000
CSS
MAX5051 toc20
100
110
10,000
= 10nF, C
125
270
240
210
180
150
120
90
60
30
0
RCOSC
50.0
49.6
49.2
48.8
48.4
48.0
47.6
47.2
46.8
46.4
46.0
50
45
40
35
30
25
20
15
10
5
0
8
7
6
5
4
3
2
1
0
-50
-50
= 100pF, C
0
SWITCHING PERIOD vs. R
DRVH MAXIMUM DUTY CYCLE
-25
-25
40
COMP OUTPUT VOLTAGE
vs. TEMPERATURE
vs. TEMPERATURE
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
REG9
I
SOURCE
R
80
RCOSC
I
25
25
SINK
= 5mA
= 4.7µF, C
= 5mA
(kΩ)
50
50
120
75
75
RCOSC
160
100
100
REG5
125
200
125
=