Datasheet

1
2
3
4
5
6
7
UVEN
VREF
PROG
TIMER
OV
IMON
GND
14
13
12
11
10
9
8
VCC
SENSE
GATE
OUT
NC
FLT
PG
TPS2492
R1
R2
R3
R
4
R
5
C
T
R6
C2
VIN
R
SENSE
C1
RG
D2
C
O
VOUT
M1
IMON
C
G
R
CG
Optional
Startup
Method
Optional IMON Filter
D1
TPS2492
TPS2493
SLUSA65C –JULY 2010–REVISED JANUARY 2013 www.ti.com
Application Design Example
The following example illustrates the design and component selection process for a TPS2492/93 application.
Figure 19 shows the application circuit for this design example. The requirements of this design are:
• Nominal System Voltage: 12 V
• Maximum Operating System Voltage: 13.5 V
• Overvoltage Threshold: 14.5 V
• Undervoltage Threshold: 9.5 V
• Steady-state Load Current: 40 A
• Load Capacitance: 1000 µF
• Maximum Ambient Temperature: 50°C
• Maximum Static Junction Temperature 125°C
• Maximum Transient Junction Temperature: 150°C
Figure 19. TPS2492/93 Design Example Schematic
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Product Folder Links: TPS2492 TPS2493