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參數(shù)資料
| 型號(hào)： | ISL8840AAUZ |
| 廠商： | INTERSIL CORP |
| 元件分類(lèi)： | 穩(wěn)壓器 |
| 英文描述： | High Performance Industry Standard Single-Ended Current Mode PWM Controller |
| 中文描述： | 1 A SWITCHING REGULATOR, 2000 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | ROHS COMPLIANT, PLASTIC, MO-187AA, MSOP-8 |
| 文件頁(yè)數(shù)： | 7/15頁(yè) |
| 文件大?。?/td> | 313K |
| 代理商： | ISL8840AAUZ |
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7
FN6320.3
April 18, 2007
Input Signal, Maximum
0.97
1.00
1.03
V
Gain, A
CS
=
Δ
V
COMP
/
Δ
V
CS
0 < V
CS
< 910mV, V
FB
= 0V
2.5
3.0
3.5
V/V
CS to OUT Delay
-
35
55
ns
ERROR AMPLIFIER
Open Loop Voltage Gain
(Note 5)
60
90
-
dB
Unity Gain Bandwidth
(Note 5)
1.0
1.5
-
MHz
Reference Voltage
V
FB
= V
COMP
2.475
2.500
2.530
V
FB Input Bias Current
V
FB
= 0V
-1.0
-0.2
1.0
μ
A
COMP Sink Current
V
COMP
= 1.5V, V
FB
= 2.7V
1.0
-
-
mA
COMP Source Current
V
COMP
= 1.5V, V
FB
= 2.3V
-0.4
-
-
mA
COMP VOH
V
FB
= 2.3V
4.80
-
VREF
V
COMP VOL
V
FB
= 2.7V
0.4
-
1.0
V
PSRR
Frequency = 120Hz, V
DD
= 12V to
30V (Note 5)
60
80
-
dB
OSCILLATOR
Frequency Accuracy
Initial, T
A
= +25°C
48
51
53
kHz
Frequency Variation with V
DD
T
A
= +25°C, (f
30V
- f
10V
)/f
30V
-
0.2
1.0
%
Temperature Stability
(Note 5)
-
-
5
%
Amplitude, Peak to Peak
Static Test
-
1.75
-
V
RTCT Discharge Voltage (Valley Voltage)
Static Test
-
1.0
-
V
Discharge Current
RTCT = 2.0V
6.5
7.8
8.5
mA
OUTPUT
Gate VOH
V
DD
to OUT, I
OUT
= -200mA
-
1.0
2.0
V
Gate VOL
OUT to GND, I
OUT
= 200mA
-
1.0
2.0
V
Peak Output Current
C
OUT
= 1nF (Note 5)
-
1.0
-
A
Rise Time
C
OUT
= 1nF (Note 5)
-
20
40
ns
Fall Time
C
OUT
= 1nF (Note 5)
-
20
40
ns
GATE VOL UVLO Clamp Voltage
VDD = 5V, I
LOAD
= 1mA
-
-
1.2
V
PWM
Maximum Duty Cycle
(ISL8840A, ISL8842A, ISL8843A)
COMP = VREF
94.0
96.0
-
%
Maximum Duty Cycle
(ISL8841A, ISL8844A, ISL8845A)
COMP = VREF
47.0
48.0
-
%
Minimum Duty Cycle
COMP = GND
-
-
0
%
NOTES:
3. Specifications at -40°C and +105°C are guaranteed by +25°C test with margin limits.
4. This is the V
DD
current consumed when the device is active but not switching. Does not include gate drive current.
5. These parameters, although guaranteed, are not 100% tested in production.
6. Adjust V
DD
above the start threshold and then lower to 15V.
Electrical Specifications
ISL884xAA -
Recommended operating conditions unless otherwise noted. Refer to Block Diagram and
Typical Application schematic onpage 3 and page 4. V
DD
= 15V, R
T
= 10k
Ω
, C
T
= 3.3nF,
T
A
= -40 to +105°C
(Note 3). Typical values are at T
A
= +25°C
(Continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
ISL8840A, ISL8841A, ISL8842A, ISL8843A, ISL8844A, ISL8845A
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PDF描述 |
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| 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 |
| ISL8841AABZ | High Performance Industry Standard Single-Ended Current Mode PWM Controller |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| ISL8840AMBEP-TK | 制造商:Intersil Corporation 功能描述:CURRENT MODE PWM CNTRLR 1A 8SOIC N - Tape and Reel |
| ISL8840AMBEPZ | 制造商:Intersil Corporation 功能描述:PB-FREE, -55 TO +125, CURRENT MODE PWM, 100% DC, 7.0V UVLO,8 - Rail/Tube |
| ISL8840AMBEPZ-TK | 制造商:Intersil Corporation 功能描述:PB-FREE,-55 TO+125,CURRENT MODE PWM, 100% DC,7.0V UVLO,8LD S - Tape and Reel |
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