參數資料
型號： P95020NQG
廠商： INTEGRATED DEVICE TECHNOLOGY INC
元件分類： 電源管理
英文描述： 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC132
封裝： 10 X 10 MM, 0.85 MM HEIGHT, QFN-132
文件頁數： 3/169頁
文件大?。?/td> 4297K
代理商： P95020NQG
IDTP95020
Product Datasheet
September 2, 2011 Revision 1.3 Final
100
2011 Integrated Device Technology, Inc.
LED Boost – Typical Performance Characteristics
Figure 29. LED Boost Efficiency vs. Load Current
(two strings of 10 LEDs)
Figure 30. LED Boost Efficiency vs. VIN
(two strings of 10 LEDs)
LED Boost – Register Settings
Output Current Register and Control Register sets and monitors the LED_BOOST Driver. The controller can be programmed
by writing 8-bit control words to these registers.
The Base addresses are defined in Table 11 – Register Address Global Mapping on Page 16.
Output Current Register
The Output Current Register contains the Enable Bit and the Sink Current settings.
IC Address = Page-0: 134(0x86), C Address = 0xA086
Table 158. LED Boost Output Current Register
BIT
BIT NAME
DEFAULT
SETTING
USER
TYPE
VALUE
DESCRIPTION / COMMENTS
[4:0] LED_BOOST_IOUT
00000b
RW
Full Scale = 0.78 mA/step
Half Scale = 0.39 mA/step
Sink Current (See Table 159)
If LED_BOOST_SCALE (Bit 6) = 1,
use Full Scale values
If LED_BOOST_SCALE (Bit 6) = 0,
use Half Scale values
5
RESERVED
0b
RW
RESERVED
6
LED_BOOST_SCALE
1b
RW
1 = Full Current Scale
0 = Half Current Scale
Current Scale
7
LED_BOOST_ENABLE 0b
RW
1 = Enable
0 = Disable
Enable Output Voltage
LED_BOOST Efficiency(%) vs. Iout(mA)
driving two strings of ten LEDs
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0
102030
40506070
IOUT(mA)
E
FFI
C
IE
N
C
Y
VIN = 4.5V
VIN = 3.8V
LED_BOOST Efficiency(%) vs. Vin(V)
driving two strings of 10 LEDs
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
3
3.2
3.4
3.6
3.8
4
4.2
4.4
VIN(V)
EF
F
IC
IEN
C
Y
IOUT = 40mA
IOUT = 20mA
相關PDF資料
PDF描述
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相關代理商/技術參數
參數描述
P95020NQG8 制造商:Integrated Device Technology Inc 功能描述:Power Management and Control 132-Pin QFN EP T/R 制造商:Integrated Device Technology Inc 功能描述:POWER MANAGEMENT AUDIO & CONTROL - Tape and Reel 制造商:Integrated Device Technology Inc 功能描述:Integrates Audio, LED B/Light Pwr Mgt
P95020ZDLLG 制造商:Integrated Device Technology Inc 功能描述:124-LGA - Bulk
P95020ZDLLG8 制造商:Integrated Device Technology Inc 功能描述:124-LGA - Tape and Reel
P95020ZDNQG 制造商:Integrated Device Technology Inc 功能描述:132-VFQFPN - Bulk
P95020ZDNQG8 制造商:Integrated Device Technology Inc 功能描述:132-VFQFPN - Tape and Reel
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