参数资料
| 型号： | ISL8843ABZ |
| 厂商： | Intersil |
| 文件页数： | 4/12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
Absolute Maximum Ratings
Supply Voltage, V DD . . . . . . . . . . . . . . . . . . . GND - 0.3V to +30.0V
OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to V DD + 0.3V
Signal Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to 6.0V
Peak GATE Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1A
ESD Classification
Human Body Model (Per JESD22-A114C.01) . . . . . . . . . . .2000V
Machine Model (Per EIA/JESD22-A115-A) . . . . . . . . . . . . . .200V
Thermal Information
Thermal Resistance (Typical, Note 1) θ JA (°C/W)
SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
MSOP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Maximum Junction Temperature . . . . . . . . . . . . . . . . -55°C to 150°C
Maximum Storage Temperature Range . . . . . . . . . . . -65°C to 150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300°C
(SOIC, MSOP - Lead Tips Only)
Charged Device Model (Per JESD22-C191-A) . . . . . . . . . .1000V
Operating Conditions
Temperature Range
ISL8843AxZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to 105°C
ISL8843MxZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-55°C to 125°C
Supply Voltage Range (Typical)
ISL8843 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9V - 30V
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
1. θ JA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
2. All voltages are with respect to GND.
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
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 4)
Includes 1nF GATE loading
-
-
-
90
2.9
4.75
125
4.0
5.5
μ A
mA
mA
REFERENCE VOLTAGE
Overall Accuracy
Long Term Stability
Current Limit, Sourcing
Current Limit, Sinking
Over line (V DD = 12V to 18V), load,
temperature
T A = 125°C, 1000 hours (Note 5)
4.925
-
-20
5
5.000
5
-
-
5.050
-
-
-
V
mV
mA
mA
CURRENT SENSE
Input Bias Current
CS Offset Voltage
COMP to PWM Comparator Offset Voltage
Input Signal, Maximum
Gain, A CS = ? V COMP / ? V CS
CS to OUT Delay
V CS = 1V
V CS = 0V (Note 5)
V CS = 0V (Note 5)
0 < V CS < 910mV, V FB = 0V
-1.0
95
0.80
0.97
2.5
-
-
100
1.15
1.00
3.0
35
1.0
105
1.30
1.03
3.5
55
μ A
mV
V
V
V/V
ns
ERROR AMPLIFIER
Open Loop Voltage Gain
Unity Gain Bandwidth
Reference Voltage
(Note 5)
(Note 5)
V FB = V COMP
60
1.0
2.475
90
1.5
2.500
-
-
2.530
dB
MHz
V
4
FN9238.1
January 3, 2006
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相关代理商/技术参数 |
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| 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) |
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| 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 |
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