參數資料
型號: ISL97653AIRZ-TK
廠商: INTERSIL CORP
元件分類: 顯示驅動器
英文描述: 5-Channel Integrated LCD Supply
中文描述: LIQUID CRYSTAL DISPLAY DRIVER, PQCC40
封裝: 6 X 6 MM, ROHS COMPLIANT, PLASTIC, QFN-40
文件頁數: 15/18頁
文件大?。?/td> 523K
代理商: ISL97653AIRZ-TK
15
FN6367.0
December 6, 2007
In voltage doubler configuration, the maximum V
ON
is as
given by the following equation:
For Voltage Tripler:
V
ON
output voltage is determined by the following equation:
Negative Charge Pump Design Consideration
The negative charge pump consists of an internal switcher
M1, M2 which drives external steering diodes D2 and D3 via
a pump capacitor (C
12
) to generate the negative V
OFF
supply. An internal comparator (A1) senses the feedback
voltage on FBN and turns on M1 for a period up to half a
CLK period to maintain V
(FBN)
in regulated operation at
0.2V. External feedback resistor R
6
is referenced to V
REF
.
Faults on V
OFF
which cause V
FBN
to rise to more than 0.4V,
are detected by comparator (A2) and cause the fault
detection system to start the internal fault timer which will
cause the chip to power down if the fault persists.
The maximum V
OFF
output voltage of a single stage charge
pump is:
R
6
and R
7
in the Typical Application Diagram determine
V
OFF
output voltage.
*Although in the given typical application diagram, SUPP and SUPN are
connected to A
VDD
, depending on a specific application, SUPN and/or SUPP
could be connected to either A
VDD
or V
IN.
FIGURE 16. V
ON
FUNCTION DIAGRAM
SUPP
SUPP
SUPP
C1-
POUT
FBP
Control
C1+
C2-
C2+
D3
D2
D1
M2
M4
M1
M3
M5
V
REF
680KHz
x2 Mode
x3 Mode
Both
External Connections
and Components
0.9V
C7
C8
C14
C21
R8
R9
C22
Error
FB
V
ON_MAX(2x)
2
V
SUPP
V
DIODE
(
)
2
I
OUT
2
R
ONH
R
ONL
(EQ. 15)
+
(
)
=
V
ON_MAX(3x)
3
V
SUPP
V
DIODE
(
)
2
I
OUT
3
R
ONH
2
R
ONL
+
(
=
(EQ. 16)
V
ON
V
FBP
1
R
8
R
9
------
+
=
(EQ. 17)
V
OFF_MAX
2x
(
)
V
SUPP
V
DIODE
2
I
OUT
+
+
=
(EQ. 18)
R
ON
NOUT
(
)
H
R
ON
NOUT
(
)
L
+
(
)
V
OFF
V
FBN
1
-------
+
V
REF
-------
=
(EQ. 19)
ISL97653A
相關PDF資料
PDF描述
ISL97702 Boost with Dual Reference Outputs
ISL97702IRZ Boost with Dual Reference Outputs
ISL97702IRZ-T13 Boost with Dual Reference Outputs
ISL97702IRZ-T7 Boost with Dual Reference Outputs
ISL97801 High Power LED Driver
相關代理商/技術參數
參數描述
ISL97653IRZ 制造商:Intersil Corporation 功能描述:
ISL97656IRTZ 功能描述:IC REG BOOST ADJ 4A 10TDFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:降壓(降壓) 輸出類型:兩者兼有 輸出數:1 輸出電壓:5V,1 V ~ 10 V 輸入電壓:3.5 V ~ 28 V PWM 型:電流模式 頻率 - 開關:220kHz ~ 1MHz 電流 - 輸出:600mA 同步整流器:無 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:16-SSOP(0.154",3.90mm 寬) 包裝:帶卷 (TR) 供應商設備封裝:16-QSOP
ISL97656IRTZEVALZ 功能描述:EVAL BOARD FOR ISL97656IRTZ RoHS:是 類別:編程器,開發(fā)系統 >> 評估板 - DC/DC 與 AC/DC(離線)SMPS 系列:* 產品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:True Shutdown™ 主要目的:DC/DC,步升 輸出及類型:1,非隔離 功率 - 輸出:- 輸出電壓:- 電流 - 輸出:1A 輸入電壓:2.5 V ~ 5.5 V 穩(wěn)壓器拓撲結構:升壓 頻率 - 開關:3MHz 板類型:完全填充 已供物品:板 已用 IC / 零件:MAX8969
ISL97656IRTZ-T 功能描述:IC REG BOOST ADJ 4A 10TDFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:降壓(降壓) 輸出類型:兩者兼有 輸出數:1 輸出電壓:5V,1 V ~ 10 V 輸入電壓:3.5 V ~ 28 V PWM 型:電流模式 頻率 - 開關:220kHz ~ 1MHz 電流 - 輸出:600mA 同步整流器:無 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:16-SSOP(0.154",3.90mm 寬) 包裝:帶卷 (TR) 供應商設備封裝:16-QSOP
ISL97656IRTZ-TK 功能描述:IC REG BOOST ADJ 4A 10TDFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 標準包裝:1 系列:EZBuck™ 類型:降壓(降壓) 輸出類型:可調式 輸出數:1 輸出電壓:0.8 V ~ 22.1 V 輸入電壓:3 V ~ 26 V PWM 型:電流模式 頻率 - 開關:1.5MHz 電流 - 輸出:1.8A 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WFDFN 裸露焊盤 包裝:剪切帶 (CT) 供應商設備封裝:8-DFN(2x2) 其它名稱:785-1276-1