參數(shù)資料
型號(hào): TPS60251RTW
廠商: Texas Instruments, Inc.
英文描述: HIGH EFFICIENCY CHARGE PUMP FOR 7 WLEDs WITH I2C INTERFACE
中文描述: 高效電荷泵7,帶有I2C接口個(gè)WLED
文件頁數(shù): 17/28頁
文件大?。?/td> 515K
代理商: TPS60251RTW
www.ti.com
TPS60251
SLVS767–APRIL 2007
Aux Output Brightness and Operation Mode Control Register (Address: 0x03h)
AUX DISP
CURRENT
BIT NAME
B7
B6
B5
B4
B3
B2
B1
B0
Iaux5
Iaux4
Iaux3
Iaux2
Iaux1
Iaux0
Mode1
Mode0
Bits 7 - 2 (DM5 set to Main Display Mode)
Iaux5 - Iaux0 (total 64 steps)
6-Bit command (64 steps) to these bits sets the current for DM5.
For LED currents between 0 and 1.5mA, one step = 0.1mA increment
For LED currents between 1.5 and 25.5mA, one step = 0.5mA increment
Bits 7 - 2 (DM5 set to Aux Display Mode)
Iaux5
(B7)
X
X
X
X
Iaux4
(B6)
X
X
X
X
Iaux3
(B5)
X
X
X
X
Iaux2
(B4)
X
X
X
X
Iaux1
(B3)
0
0
1
1
Iaux0
(B2)
0
1
0
1
Aux Dimming
Step
20%
40%
70%
100%
Bits 1,0
Mode1, Mode0
Mode1 Mode0
(B1)
0
TPS60251 Mode
(B0)
0
Auto-Switchover Mode. The TPS60251 selects
1
×
/1.5
×
mode as described in the
Operating Principle
section.
1
×
Mode. TPS60251 remains in 1
×
mode regardless
of the input voltage. LED current may not regulate at
lower input voltages when in this mode.
1.5
×
Mode. TPS60251 remains in 1.5
×
mode
regardless of the input voltage.
Auto-Switchover Mode. The TPS60251 selects
1
×
/1.5
×
mode as described in the
Operating Principle
section.
0
1
1
0
1
1
17
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TPS60251RTWR 功能描述:LED照明驅(qū)動(dòng)器 High Eff Charge Pump RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
TPS60251RTWRG4 功能描述:LED照明驅(qū)動(dòng)器 High Eff Charge Pump RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
TPS60251RTWT 功能描述:LED照明驅(qū)動(dòng)器 High Eff Charge Pump RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
TPS60251RTWT 制造商:Texas Instruments 功能描述:DC/DC Charge Pump Converter IC
TPS60251RTWTG4 功能描述:LED照明驅(qū)動(dòng)器 High Eff Charge Pump RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N