參數(shù)資料
型號(hào): TPS53851RHHT
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: SWITCHING CONTROLLER, PQCC36
封裝: PLASTIC, VQFN-36
文件頁(yè)數(shù): 16/66頁(yè)
文件大?。?/td> 1264K
代理商: TPS53851RHHT
PWM A
1
2
3
4
5
6
7
8
9
EXT CLKA
EXT CLKS
1
2
3
4
5
6
7
8
1
11
10
3
2
PWM S
UDG06032
R
SET + VOUT
1
V
IN2
*
1
V
IN1
100 kW
www.ti.com
SLUS985 – DECEMBER 2009
Figure 5-7 shows a time slice of the two external clock possibilities and the resulting PWM signal. EXT
CLK-A is the continuous clock with no missing pulse and the PWM-A signal could be frequency
synchronized anywhere in the clock stream. The PWM signal is at 1/8 of the EXT CLK-A frequency. EXT
CLK-S is the external clock stream with a missing pulse every 8 cycles. The phasing of the PWM-S is
based on the voltage on the PHSEL pin. For PHSEL grounded, the PWM-S signal is shifted 90 degrees
from what would be the falling edge of the missing pulse as shown.
Figure 5-7. Synchronizing a Single Controller to an External Clock
5.22 SPLIT INPUT VOLTAGE OPERATION
It may be advantageous to operate a master controller’s power stages from VIN 1, different from the slave
controller(s) power stages, VIN 2 where VIN 1 > VIN 2. This enables the system designer to optimize the
current taken from the system input voltages. In order to balance the output currents, a programmed offset
is applied to ILIM2 of the slave controller(s). The voltage on this pin sets the offset current for channel 2.
The ramp offset is determined by a resistor, RSET, connected to the ILIM2 pin of the slave, and is given by:
(6)
Copyright 2009, Texas Instruments Incorporated
APPLICATION INFORMATION
23
Product Folder Link(s): TPS53851
相關(guān)PDF資料
PDF描述
TPS54010PWPG4 25 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28
TPS54040DGQ 0.5 A SWITCHING REGULATOR, 2500 kHz SWITCHING FREQ-MAX, PDSO10
TPS54073PWPRG4 25 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28
TPS54073PWPR 25 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28
TPS54073PWP 25 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS53915EVM-587 功能描述:TPS53915 SWIFT?, D-CAP3?, Eco-Mode? DC/DC, Step Down 1, Non-Isolated Outputs Evaluation Board 制造商:texas instruments 系列:SWIFT?,D-CAP3?,Eco-Mode? 零件狀態(tài):有效 主要用途:DC/DC,步降 輸出和類型:1,非隔離 功率 - 輸出:- 電壓 - 輸出:1.2V 電流 - 輸出:12A 電壓 - 輸入:12V 穩(wěn)壓器拓?fù)?降壓 頻率 - 開關(guān):- 板類型:完全填充 所含物品:板 使用的 IC/零件:TPS53915 標(biāo)準(zhǔn)包裝:1
TPS53915RVET 制造商:Texas Instruments 功能描述:1.5V TO 18V INPUT (4.5V TO 25V BIAS), 12-A SYNCHRONOUS STEP- - Tape and Reel 制造商:Texas Instruments 功能描述:IC REG BUCK SYNC ADJ 12A 28VQFN
TPS5401 制造商:TI 制造商全稱:Texas Instruments 功能描述:0.5-A, 42-V Input, Step-Down SWIFT? Converter
TPS54010 制造商:TI 制造商全稱:Texas Instruments 功能描述:SWIFT Converter Product Portfolio
TPS54010EVM-067 功能描述:電源管理IC開發(fā)工具 4.0 Vin DC/DC Conv RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V