MAX8791BGTA+ Maxim Integrated Products, MAX8791BGTA+ Datasheet - Page 4

• Manufacturer Part Number: MAX8791BGTA+
• Description: IC MOSF DRIVER 1PH SYNCH 8TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX8791BGTA+

• Configuration: High and Low Side, Synchronous
• Input Type: Differential
• Delay Time: 14ns
• Current - Peak: 2.7A
• Number Of Configurations: 1
• Number Of Outputs: 2
• High Side Voltage - Max (bootstrap): 36V
• Voltage - Supply: 4.2 V ~ 5.5 V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 8-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Single-Phase, Synchronous MOSFET Drivers
(Circuit of Figure 1, V
4
_______________________________________________________________________________________
40
35
30
25
20
15
10
5
0
1000
2500
DH RISE AND FALL TIMES
vs. CAPACITIVE LOAD
4000
CAPACITANCE (pF)
V
PWM
V
V
V
16
15
14
13
12
11
10
DH
DL
LX
9
8
DD
-40
5500
= 5V, C
DH FALL AND DL RISE WAVEFORMS
PWM FALL TO DH FALL
RISE TIME
-15
7000
PROPAGATION DELAY TIME
vs. TEMPERATURE
C
DH
FALL TIME
DL
TEMPERATURE (°C)
10
8500 10,000
= C
= 3nF, C
20ns/div
PWM RISE TO DL FALL
DH
35
DL
60
= 3nF, T
Typical Operating Characteristics (continued)
MAX8791 toc09
40
35
30
25
20
15
10
85
-40
110
DH AND DL RISE AND FALL TIMES
A
= +25°C, unless otherwise noted.)
-15
5V/div
10V/div
5V/div
10V/div
vs. TEMPERATURE
TEMPERATURE (°C)
10
DL RISE
DH RISE
DH IS DRIVING 1 SI7892ADP
DL IS DRIVING 2 SI7336ADP
35
V
V
PWM
V
PWM
V
V
60
V
V
V
DH
LX
DL
DH
LX
DL
DH FALL
DL FALL
DL FALL
DH RISE AND DL FALL WAVEFORMS
85
TYPICAL APPLICATION CIRCUIT
SWITCHING WAVEFORMS
110
100ns/div
20ns/div
60
50
40
30
20
10
0
0
PACKAGE-POWER DISSIPATION
200
MAX8791 toc10
MAX8791 toc08
vs. PWM FREQUENCY
PWM FREQUENCY (kHz)
400
A: C
B: C
5V/div
10V/div
5V/div
10V/div
5V/div
10V/div
5V/div
20V/div
600
DH
DH
= 3.3nF; C
= 1.5nF; C
800
DL
DL
1000
= 3.3nF
= 6.8nF
B
A
1200