参数资料
| 型号： | ISL8843ABZ |
| 厂商： | Intersil |
| 文件页数： | 5/12页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BST FLYBK ISO 8SOIC |
| 标准包装： | 98 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 2MHz |
| 占空比： | 100% |
| 电源电压： | 9 V ~ 30 V |
| 降压： | 是 |
| 升压： | 是 |
| 回扫： | 是 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 是 |
| 工作温度： | -40°C ~ 105°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 管件 |
| 产品目录页面： | 1244 (CN2011-ZH PDF) |
ISL8843
Electrical Specifications
ISL8843A - Recommended operating conditions unless otherwise noted. Refer to Block Diagram and
Typical Application schematic. V DD = 15V, RT = 10k ? , CT = 3.3nF, T A = -40 to 105°C (Note 3) Typical values
are at T A = 25°C (Continued)
PARAMETER
FB Input Bias Current
COMP Sink Current
COMP Source Current
COMP VOH
COMP VOL
PSRR
TEST CONDITIONS
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
18V (Note 5)
MIN
-1.0
1.0
-0.4
4.80
0.4
60
TYP
-0.2
-
-
-
-
80
MAX
1.0
-
-
VREF
1.0
-
UNITS
μ A
mA
mA
V
V
dB
OSCILLATOR
Frequency Accuracy
Frequency Variation with V DD
Temperature Stability
Amplitude, Peak to Peak
RTCT Discharge Voltage (Valley Voltage)
Discharge Current
Initial, T A = 25°C
T A = 25°C, (F 30V - F 9V )/F 30V
(Note 5)
Static Test
Static Test
RTCT = 2.0V
48
-
-
-
-
6.5
51
0.2
-
1.75
1.0
7.8
53
1.0
5
-
-
8.5
kHz
%
%
V
V
mA
OUTPUT
Gate VOH
Gate VOL
Peak Output Current
Rise Time
Fall Time
GATE VOL UVLO Clamp Voltage
V DD - OUT, I OUT = -200mA
OUT - GND, I OUT = 200mA
C OUT = 1nF (Note 5)
C OUT = 1nF (Note 5)
C OUT = 1nF (Note 5)
VDD = 5V, I LOAD = 1mA
-
-
-
-
-
-
1.0
1.0
1.0
20
20
-
2.0
2.0
-
40
40
1.2
V
V
A
ns
ns
V
PWM
Maximum Duty Cycle
Minimum Duty Cycle
COMP = VREF
COMP = GND
93.5
-
95
-
-
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. Guaranteed by design, not 100% tested in production.
Electrical Specifications
ISL8843M - Recommended operating conditions unless otherwise noted. Refer to Block Diagram and
Typical Application schematic. V DD = 15V, RT = 10k ? , CT = 3.3nF, T A = -55 to 125°C (Note 6), Typical values
are at T A = 25°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
UNDERVOLTAGE LOCKOUT
START Threshold
STOP Threshold
Hysteresis
8.0
7.3
-
8.4
7.6
0.8
9.0
8.0
-
V
V
V
Startup Current, I DD
Operating Current, I DD
Operating Supply Current, I D
V DD < START Threshold
(Note 7)
Includes 1nF GATE loading
-
-
-
90
2.9
4.75
125
4.0
5.5
μ A
mA
mA
REFERENCE VOLTAGE
Overall Accuracy
Over line (V DD = 12V to 18V), load,
temperature
4.900
5.000
5.050
V
5
FN9238.1
January 3, 2006
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL8843ABZ-T | 功能描述:IC REG CTRLR BST FLYBK ISO 8SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:275kHz 占空比:50% 电源电压:18 V ~ 110 V 降压:无 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:是 工作温度:-40°C ~ 85°C 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) |
| ISL8843AMBEP | 制造商:Intersil Corporation 功能描述:CURRENT MODE PWM CNTRLR 1A 8SOIC N - Rail/Tube |
| ISL8843AMBEP-TK | 制造商:Intersil Corporation 功能描述:CURRENT MODE PWM CNTRLR 1A 8SOIC N - Tape and Reel |
| ISL8843AMBEPZ | 制造商:Intersil Corporation 功能描述:PB-FREE, -55 TO +125, CURRENT MODE PWM, 100% DC,8.4V UVLO,8L - Rail/Tube |
| ISL8843AMBEPZ-TK | 制造商:Intersil Corporation 功能描述:PB-FREE,-55 TO+125, CURRENT MODE PWM,100% DC,8.4V UVLO,8LD S - Tape and Reel |
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