参数资料
型号: TPS2393APWRG4
厂商: TEXAS INSTRUMENTS INC
元件分类: 电源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO14
封装: GREEN, PLASTIC, TSSOP-14
文件页数: 6/30页
文件大小: 665K
代理商: TPS2393APWRG4
TPS2393A
SLUS610 JULY 2004
14
www.ti.com
DETAILED DESCRIPTION
+
H=CLOSED
+
L=CLOSED
SQ
Q
R
+
LCA
+
H=CLOSED
+
SQ
Q
R
12
13
1.35V
5V
FLT
EN_A
VLIM
4
9
10
6
8
1.4V
5
14
1
3
2
7
100 mV
VLIM
EN_A
11
IRAMP
RAMP
GENERATOR
FAULT
TIMER
OVERLOAD
OVERCURRENT
DRAINSNS
FLTTIME
ISENS
GATE
INSA
UVLO
OVLO
EN
VIN
INSB
S
R
FT
ON
EN
OC
OL
RTN
+
OLC
FLT
UDG02116
PG
FAULT
10
mA
10
mA
10
mA
10
mA
10
mA
10
mA
Figure 22. Block Diagram
Under normal load and input supply conditions, this controlled current charges the module’s input bulk
capacitance up to the input dc voltage level. At this point, the load demand drops off, and the voltage at ISENS
decreases. The LCA now drives the GATE output to its supply rail. The 14-V typical output level ensures
sufficient overdrive to fully enhance the external FET, while not exceeding the typical 20-V VGS rating of common
N-channel power MOSFETs.
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