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参数资料
| 型号： | ISL97652IRZ-TK |
| 厂商： | Intersil |
| 文件页数： | 11/25页 |
| 文件大小： | 0K |
| 描述： | IC LCD SUPPLY 4CH DUAL AMP 48QFN |
| 标准包装： | 1,000 |
| 应用： | LCD 电视机/监控器 |
| 电流 - 电源： | 500µA |
| 电源电压： | 8 V ~ 15 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-VFQFN 裸露焊盘 |
| 供应商设备封装： | 48-QFN（7x7） |
| 包装： | 带卷 (TR) |
ISL97652
Typical Application Diagram
V IN
L1
D1
V MAIN
C11
A VDD
10μF
C IN
3 x 10μF
100nF
FREQ
PVIN1 PVIN2
6.8μH
SW1
SW2
C OUT
3x
R1
1x100nF 226k
*
R3
0
V IN
C VIN
0.1μF
C2*
R5
40.2k
C REF
220nF
SUP
REF
FB
VGL
SWI
SUI
C SUI
0.1μF
*
C12
R2
20k
R4 *
C AVDD
4 x 10μF
A VDD
R9
100k
V OFF
C OFF
4.7μF
C3*
R6
453k
D4
D3
C N
0.1μF
FBN
DRVN
SWO
VC
SS
DLY1
DLY2
CE
CE
R C
10k
C D2
0.1μF
C D1
0.1μF
C SS
0.1μF
C C
4.7nF
POS1
10nF
R10
100k
COMMON
BACK-PLANE
NEG1
OUT1
POS2
NEG2
RE
VGHM
VGH
GATE DRIVER
SUPPLY
V ON
R E
10k
L2
A VDD
T CON BIAS
C B
2x10μF
C21
*
COMMON
BACK-PLANE
C AVIN
0.1μF 470nF
CB
6.8μH
D5
R11
340
OUT2
AVIN
CBOOT
SWB1
SWB2
FBP
PGND3
PGND2
PGND1
DRVP
C4*
C5*
C P
0.1μF
R7
232k
R8
10k
D7
C ON
4.7μF
D6
A VDD
FBB
VFLK
C22
SSB
VDPM
VCB
*
R12
200
C SSB
0.1μF
10k
4.7nF
R CB
C CB
EN2
VDC GND OGND AGND EN1
C DC
4.7μF
*Optional components.
NOTE: Separate PGND and SGND planes must be used, see PCB layout procedure section.
Applications Information
The ISL97652 provides a complete power solution for TFT
LCD applications. The system consists of one boost
converter to generate A VDD voltage for column drivers, one
buck converter to provide voltage to logic circuit in the LCD
panel, integrated V ON and V OFF charge pump controllers,
A VDD delay FET, V ON-SLICE and dual high speed VCOM
amplifiers. With the high output current capability, this part is
ideal for big screen LCD TV and monitor panel application.
The integrated boost converter and buck converter operate
Boost Converter
The boost converter is a current mode PWM converter
operating at either 650kHz or 1.3MHz. 650kHz operation
allows operation down to lower duty cycles. It can operate in
both discontinuous conduction mode (DCM) at light load or
when operating duty cycle is lower than the minimum duty
cycle and continuous mode (CCM). In continuous current
mode, current flows continuously in the inductor during the
entire switching cycle in steady state operation. The voltage
conversion ratio in continuous current mode is given by:
V BOOST 1
V IN
at either 650kHz or 1.3MHz which allow the use of multilayer
ceramic capacitors and low profile inductor which result in
------------------------ = -------------
1 – D
(EQ. 1)
low cost, compact and reliable system.
Where D is the duty cycle of the switching MOSFET.
11
FN9287.1
November 2, 2007
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL97653AIRZ | 功能描述:电流型 PWM 控制器 5-CH INTEGRTD LCD SUPPLY W/TEMP SENSOR RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL97653AIRZ-T | 功能描述:电流型 PWM 控制器 5-CH INTEGRTD LCD SUPPLY W/TEMP SENSOR RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL97653AIRZ-TK | 功能描述:电流型 PWM 控制器 5-CH INTEGRTD LCD SUPPLY W/TEMP SENSOR RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL97653IRZ | 制造商:Intersil Corporation 功能描述: |
| ISL97656IRTZ | 功能描述:IC REG BOOST ADJ 4A 10TDFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:两者兼有 输出数:1 输出电压:5V，1 V ~ 10 V 输入电压:3.5 V ~ 28 V PWM 型:电流模式 频率 - 开关:220kHz ~ 1MHz 电流 - 输出:600mA 同步整流器:无 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:16-SSOP（0.154"，3.90mm 宽） 包装:带卷 (TR) 供应商设备封装:16-QSOP |
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