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IR3548 Datasheet(PDF) 3 Page - International Rectifier

Part # IR3548
Description  Integrated Dual, Doubler or Quad mode Driver
Download  30 Pages
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

IR3548 Datasheet(HTML) 3 Page - International Rectifier

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IR3548
3 www.irf.com
© 2014 International Rectifier
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January 08, 2014
FUNCTIONAL BLOCK DIAGRAM
FUNCTION
SW1
EN1
36
37
38
39
40
41
42
43
44
1
2
48
49
VIN1 VIN1 VIN1
VIN1
SW1
SW1
SW1
SW1
SW1
SW1
SW1
SW1
13 BOOT2
7
BOOT1
Power-on
Reset (POR),
Reference,
MODE
(PWM or IR
ATL),
FUNCTION
(Dual, Doubler,
or Quad),
and
Driver
Dead-time
Control
4
LGND
9
VDRV 11
EN1
4
Driver
Driver
3
VINDIV
17
MODE
14
PWM2 /
PWMIO1
VDRV
IR3548
VDRV
35 SW1
Q1
Q2
SW2
20
21
25
26
27
28
29
30
SW2
SW2
SW2
SW2
SW2
VIN2
VIN2
31
32
PGND
PGND
Driver
Driver
VDRV
19
VIN2
Q3
Q4
18
VIN2
33 SW2
SW2
SW2
46
24
GATEL2
GATEL2
22
12
VCC or
VDRV
UVLO
or
T > 150°C
VCC
6
16
EN2 /
PWMIO2
15
PWM1
5
VIN1
LGND
PGND
50
VIN1
14
PGND
23
47
PGND
8
GATEL1
SW2
PGND
10
45
GATEL1
34
Figure 2: Block Diagram
TABLE 1: FUNCTION AND MODE PIN CONFIGURATION TABLE
PIN 16
“FUNCTION”
PIN 17
“MODE”
Functionality
PWM
Mode
Pin 4
“EN1” Function
Pin 14 Function
Pin 15 Function
0
1
DUAL
IR ATL
Loop 1
PWM2
EN2
1
1
DOUBLER
IR ATL
Loops 1 & 2
NA
NA
Float
1
QUAD Master
IR ATL
Loops 1 & 2
PWMIO1 (output)
PWMIO2 (output)
0
0
DUAL
Tri-State
Loop 1
PWM2
EN2
1
0
DOUBLER
Tri-State
Loops 1 & 2
NA
NA
Float
0
QUAD Slave
NA
Loops 1 & 2
PWMIO1 (input)
PWMIO2 (input)


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