MAX8523EEE Maxim Integrated Products, MAX8523EEE Datasheet - Page 4

• Manufacturer Part Number: MAX8523EEE
• Description: MOSFET & Power Driver ICs Gate Driver
• Manufacturer: Maxim Integrated Products

Specifications of MAX8523EEE

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

High-Speed, Dual-Phase Gate Driver for
Multiphase, Step-Down Converters
(PV1 = PV2 = V
4
_______________________________________________________________________________________
18
16
14
12
10
8
6
4
2
0
0
C
DH
= C
1
DL
DH RISE AND FALL vs.
CC
CAPACITIVE LOAD
DH RISE
30
20
10
CAPACITANCE (nF)
0
2
= V
-40 -20
DL_FALL→ DH_RISE
PWM_RISE → DL_FALL
V
DLY
DLY
3
DH FALL
= V
= 5V, 3nF capacitive load, T
CC
PROPAGATION DELAY
0
vs. TEMPERATURE
4
TEMPERATURE (°C)
20
5
PWM_FALL → DH_FALL
40
60
6
80
100 120
Typical Operating Characteristics (continued)
16
14
12
10
TYPICAL SWITCHING WAVEFORMS
8
6
4
2
0
-40 -20
C
2XIRF7811W HIGH-SIDE
MOSFETS
2XIRF7822 LOW-SIDE
MOSFETS
DL
DH AND DL RISE AND FALL TIMES
A
DH RISE
= C
= +25°C, unless otherwise noted.)
DH
DL RISE
0
= 3.0nF
vs. TEMPERATURE
100 ns
TEMPERATURE (°C)
20
40
DH FALL
60
MAX8523 toc09
5V/div
80
DL FALL
100 120
240
220
200
180
160
140
120
100
80
60
40
20
0
PWM SIGNAL
DH_ GATE
VOLTAGE
LX SWITCHING
VOLTAGE
DL_ GATE
VOLTAGE
0
20
PROGRAMMABLE DELAY
40
50
40
30
20
10
0
0
vs. R
R
60
V
DLY
V
V
DLY
CC
CC
(kΩ)
0.2
vs. SWITCHING FREQUENCY
= 6.5V
= 5V
= V
DLY
80
V
CC
CC
0.4
100
SUPPLY CURRENT
FREQUENCY (MHz)
120
0.6
140
0.8
1.0
1.2