参数资料
型号: PTH04T261WAZ
厂商: TEXAS INSTRUMENTS INC
元件分类: 电源模块
英文描述: 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
封装: ROHS COMPLIANT, PLASTIC, DIP-10
文件页数: 20/36页
文件大小: 1162K
代理商: PTH04T261WAZ
Notes on Use of Auto-Track
U2
PTH04T260W
Vi
Auto Track
GND
VoAdj
Vo
TurboTrans
+Sense
Sense
Inhibit/
UVLO
U3
TPS3808G50
6
GND
2
4
3
MR
CT
SENSE
5
1
U1
PTH05T210W
Vi
Auto Track
GND
VoAdj
Vo
TurboTrans
+Sense
Sense
+
Inhibit/
UVLO
SmartSync
+
RTT
VO1 = 3.3 V
CO1
VO2 = 1.8 V
CO2
RTT
RSET2
4.75 k
RSET1
1.62 k
CI2
CI1
RESET
VI = 5 V
C4
0.1
F
C3
4700
F
UDG06042
www.ti.com.................................................................................................................................................. SLTS273E – SEPTEMBER 2006 – REVISED JULY 2009
1. The Track pin voltage must be allowed to rise above the module set-point voltage before the module
regulates at its adjusted set-point voltage.
2. The Auto-Track function tracks almost any voltage ramp during power up, and is compatible with ramp
speeds of up to 1 V/ms.
3. The absolute maximum voltage that may be applied to the Track pin is the input voltage VI.
4. The module cannot follow a voltage at its track control input until it has completed its soft-start initialization.
This takes about 20 ms from the time that a valid voltage has been applied to its input. During this period, it
is recommended that the Track pin be held at ground potential.
5. The Auto-Track function is disabled by connecting the Track pin to the input voltage (VI). When Auto-Track is
disabled, the output voltage rises at a quicker and more linear rate after input power has been applied.
Figure 24. Sequenced Power Up and Power Down Using Auto-Track
Copyright 2006–2009, Texas Instruments Incorporated
27
Product Folder Link(s): PTH04T260W PTH04T261W
相关PDF资料
PDF描述
PTH04T260WAST 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH04T260WAS 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH04T261WAZT 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH04T261WAST 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
PTH05050YAZT 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
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