參數(shù)資料
型號(hào)： TPS2383PMR
廠(chǎng)商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQFP64
封裝： GREEN, PLASTIC, LQFP-64
文件頁(yè)數(shù)： 11/28頁(yè)
文件大?。?/td> 397K
代理商： TPS2383PMR
TPS2383
SLUS559B APRIL 2003 REVISED JULY 2004
19
www.ti.com
FUNCTIONAL DESCRIPTION
Table 7. Port Control
Write Register, Register Address = 010, Port Address = 001 (Port 2 Register)
BIT
FUNCTION
RANK
STATE
PRESET
STATE
D7
Port fault disable
Port
0
= Normal mode
1
= Disable the port overload and UV/OV timers
0
D6
Spare
0
D5
Class limit 1
Common
Class Limit2, Class Limit1
0,0
= 160-mA classification current limit
0,1
= 80-mA classification current limit
1,0
= 40-mA classification current limit
1,1
= 20-mA classification current limit
0
D4
LED blink enablle
Port
0
= LED is on continuous.
1
= Blink the enabled LED at a fast-blink rate. Note fast-blink rate (in
milliseconds) equivalent to 0.00013 x TPS2383 clock (CLK). This could be
as fast as 65 ms for a 500-kHz, TPS2383 clock.
0
D3
LED low-side enable
Port
1
= Enable the low-side FET and drive the LED pin low
0
D2
LED high-side enable
Port
1
= Enable the high-side FET and drive the LED pin to V5
0
D1
Enable modes
Port
00
= Port OFF or disable
01
= Discovery classification power on sequence
0
D0
Enable modes
Port
01
= Discovery classification power on sequence
10
= Sample powered-mode current
11
= Power-down an active port
0
Table 8. Port Control
Write Register, Register Address = 010, Port Address = 010 (Port 3 Register)
BIT
FUNCTION
RANK
STATE
PRESET
STATE
D7
Port fault disable
Port
0
= Normal mode
1
= Disable the port overload and UV/OV timers
0
D6
Spare
0
D5
Class limit 2
Common
Class Limit2, Class Limit1
0,0
= 160-mA classification current limit
0,1
= 80-mA classification current limit
1,0
= 40-mA classification current limit
1,1
= 20-mA classification current limit
0
D4
LED blink enablle
Port
0
= LED is on continuous.
1
= Blink the enabled LED at a fast-blink rate. Note fast-blink rate (in
milliseconds) equivalent to 0.00013 x TPS2383 clock (CLK). This could be
as fast as 65 ms for a 500-kHz TPS2383 clock.
0
D3
LED low-side enable
Port
1
= Enable the low-side FET and drive the LED pin low
0
D2
LED high-side enable
Port
1
= Enable the high-side FET and drive the LED pin to V5
0
D1
Enable modes
Port
00
= Port OFF or disable
01
= Discovery classification power on sequence
0
D0
Enable modes
Port
01
= Discovery classification power on sequence
10
= Sample powered-mode current
11
= Power-down an active port
0
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