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參數(shù)資料
| 型號(hào)： | ISL8840A |
| 廠(chǎng)商： | Intersil Corporation |
| 英文描述： | High Performance Industry Standard Single-Ended Current Mode PWM Controller |
| 中文描述： | 高性能的行業(yè)標(biāo)準(zhǔn)單端電流模式PWM控制器 |
| 文件頁(yè)數(shù)： | 8/15頁(yè) |
| 文件大?。?/td> | 313K |
| 代理商： | ISL8840A |
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8
FN6320.3
April 18, 2007
Electrical Specifications
ISL884xAM
-
Recommended operating conditions unless otherwise noted. Refer to Block Diagram and
Typical Application schematic. V
DD
= 15V, RT = 10k
Ω
, CT = 3.3nF,
T
A
= -55 to +125°C
(Note 7), Typical values
are at T
A
= +25°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
UNDERVOLTAGE LOCKOUT
START Threshold (ISL8840A, ISL8841A)
6.5
7.0
7.5
V
START Threshold (ISL8843A, ISL8845A)
8.0
8.4
9.0
V
START Threshold (ISL8842A, ISL8844A)
(Note 10)
13.3
14.3
15.3
V
STOP Threshold (ISL8840A, ISL8841A)
6.1
6.6
6.9
V
STOP Threshold (ISL8843A, ISL8845A)
7.3
7.6
8.0
V
STOP Threshold (ISL8842A, ISL8844A)
8.0
8.8
9.6
V
Hysteresis (ISL8840A, ISL8841A)
-
0.4
-
V
Hysteresis (ISL8843A, ISL8845A)
-
0.8
-
V
Hysteresis (ISL8842A, ISL8844A)
-
5.4
-
V
Startup Current, I
DD
Operating Current, I
DD
Operating Supply Current, I
D
REFERENCE VOLTAGE
V
DD
< START Threshold
(Note 8)
-
90
125
μ
A
-
2.9
4.0
mA
Includes 1nF GATE loading
-
4.75
5.5
mA
Overall Accuracy
Over line (V
DD
= 12V to 30V), load,
temperature
4.900
5.000
5.050
V
Long Term Stability
T
A
= +125°C, 1000 hours (Note 9)
-
5
-
mV
Current Limit, Sourcing
-20
-
-
mA
Current Limit, Sinking
5
-
-
mA
CURRENT SENSE
Input Bias Current
V
CS
= 1V
V
CS
= 0V (Note 9)
V
CS
= 0V (Note 9)
-1.0
-
1.0
μ
A
CS Offset Voltage
95
100
105
mV
COMP to PWM Comparator Offset Voltage
0.80
1.15
1.30
V
Input Signal, Maximum
0.97
1.00
1.03
V
Gain, A
CS
=
Δ
V
COMP
/
Δ
V
CS
CS to OUT Delay
0 < V
CS
< 910mV, V
FB
= 0V
2.5
3.0
3.5
V/V
-
35
60
ns
ERROR AMPLIFIER
Open Loop Voltage Gain
(Note 9)
60
90
-
dB
Unity Gain Bandwidth
(Note 9)
1.0
1.5
-
MHz
Reference Voltage
V
FB
= V
COMP
V
FB
= 0V
V
COMP
= 1.5V, V
FB
= 2.7V
V
COMP
= 1.5V, V
FB
= 2.3V
V
FB
= 2.3V
V
FB
= 2.7V
Frequency = 120Hz, V
DD
= 12V to
30V (Note 9)
2.460
2.500
2.535
V
FB Input Bias Current
-1.0
-0.2
1.0
μ
A
COMP Sink Current
1.0
-
-
mA
COMP Source Current
-0.4
-
-
mA
COMP VOH
4.80
-
VREF
V
COMP VOL
0.4
-
1.0
V
PSRR
60
80
-
dB
OSCILLATOR
Frequency Accuracy
Initial, T
A
= +25°C
48
51
53
kHz
Frequency Variation with V
DD
Temperature Stability
T
A
= +25°C, (f
30V
- f
10V
)/f
30V
(Note 9)
-
0.2
1.0
%
-
-
5
%
ISL8840A, ISL8841A, ISL8842A, ISL8843A, ISL8844A, ISL8845A
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISL8840AABZ | High Performance Industry Standard Single-Ended Current Mode PWM Controller |
| ISL8840AAUZ | High Performance Industry Standard Single-Ended Current Mode PWM Controller |
| ISL8840AMBZ | High Performance Industry Standard Single-Ended Current Mode PWM Controller |
| ISL8840AMUZ | High Performance Industry Standard Single-Ended Current Mode PWM Controller |
| ISL8841A | High Performance Industry Standard Single-Ended Current Mode PWM Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL8840AABZ | 功能描述:電流型 PWM 控制器 CUR MODE PWM 100% DC 7.0V UVLO 8LD RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| ISL8840AABZ-T | 功能描述:IC REG CTRLR BST FLYBK ISO 8SOIC RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:275kHz 占空比:50% 電源電壓:18 V ~ 110 V 降壓:無(wú) 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:是 工作溫度:-40°C ~ 85°C 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) |
| ISL8840AAUZ | 功能描述:電流型 PWM 控制器 CUR MODE PWM 100% DC 7.0V UVLO 8LD RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| ISL8840AAUZ-T | 功能描述:IC REG CTRLR BST FLYBK ISO 8MSOP RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:275kHz 占空比:50% 電源電壓:18 V ~ 110 V 降壓:無(wú) 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:是 工作溫度:-40°C ~ 85°C 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) |
| ISL8840AMBEP | 制造商:Intersil Corporation 功能描述:CURRENT MODE PWM CNTRLR 1A 8SOIC N - Rail/Tube |
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