max5059auit Maxim Integrated Products, Inc., max5059auit Datasheet - Page 8

• Manufacturer Part Number: max5059auit
• Description: Parallelable, Secondary-side Synchronous Rectifier Driver And Feedback-generator Controller Ics
• Manufacturer: Maxim Integrated Products, Inc.

Parallelable Secondary-Side Synchronous Rectifier
Driver and Feedback-Generator Controller ICs
(V+ = +12V, GND = PGND = 0, VDR = V
V
8
VSP
6.0
5.8
5.6
5.4
5.2
5.0
4.8
4.6
4.4
4.2
4.0
_______________________________________________________________________________________
= 1.785V, V
-40
-25
vs. TEMPERATURE (MAX5059)
SWITCHING SUPPLY CURRENT
-10 5 20 35 50
20.04
20.03
20.02
20.01
20.00
19.99
19.98
19.97
19.96
-10
-15
-20
30
25
20
15
10
-5
COMPS
TEMPERATURE (°C)
5
0
0.01
-40
CURRENT-SENSE AMPLIFIER (CSA) GAIN
V
-25 -10 5
CSP
= 0.5V, C
0.1
= 100mV
65 80
vs. TEMPERATURE
TEMPERATURE (°C)
vs. FREQUENCY
f
SW
1
FREQUENCY (Hz)
20
CSA GAIN
= 250kHz
95
VREG
35 50 65
10
110
125
= 2.2µF, C
REG
100
80
, C
95
1k
QSYNC
0.015
0.014
0.013
0.012
0.011
0.010
0.009
0.008
0.007
110
Typical Operating Characteristics (continued)
VP
125
10k
= 1µF, C
-40
REMOTE-SENSE AMPLIFIER (RSA) GAIN
= C
-25 -10 5
V
VSP
QREC
= 1.785V
COMPS
vs. TEMPERATURE
TEMPERATURE (°C)
= 0, ZCP = ZCN = BUFIN = CSP = CSN = SFN = VSN = GND, V
20
35 50 65
= 0.1µF, C
5.40
5.35
5.30
5.25
5.20
5.15
5.10
5.05
5.00
25.1
25.0
24.9
24.8
24.7
24.6
24.5
24.4
24.3
24.2
24.1
24.0
ZERO-CURRENT COMPARATOR THRESHOLD
-40
-40
-25 -10 5
80
-25
SFP
95
-10 5 20 35 50
110
= 68nF, T
vs. TEMPERATURE
CSA INPUT OFFSET
vs. TEMPERATURE
TEMPERATURE (°C)
TEMPERATURE (°C)
125
20
35 50 65
A
-10
-15
-20
-25
-30
-35
-40
= +25°C, unless otherwise noted.)
10
-5
5
0
65 80
0
80
95
0.1k
95
110
110
1k
125
125
vs. FREQUENCY
FREQUENCY (Hz)
RSA GAIN
10k
100k
1M
10M
IREF
100M
=