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| 型号： | MCP14628-E/SN |
| 厂商： | Microchip Technology |
| 文件页数： | 3/24页 |
| 文件大小： | 0K |
| 描述： | IC MOSFET DVR 2A SYNC BUCK 8SOIC |
| 标准包装： | 100 |
| 配置： | 高端和低端，同步 |
| 输入类型： | PWM |
| 延迟时间： | 18ns |
| 电流 - 峰： | 2A |
| 配置数： | 1 |
| 输出数： | 2 |
| 高端电压 - 最大（自引导启动）： | 36V |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 管件 |
| 产品目录页面： | 670 (CN2011-ZH PDF) |
MCP14628
1.0
ELECTRICAL
CHARACTERISTICS
? Notice: Stresses above those listed under "Maximum
Ratings" may cause permanent damage to the device. This is
a stress rating only and functional operation of the device at
those or any other conditions above those indicated in the
Absolute Maximum Ratings ?
V CC , Device Supply Voltage............................. -0.3V to +7.0V
operational sections of this specification is not intended.
Exposure to maximum rating conditions for extended periods
may affect device reliability.
V BOOT , BOOT Voltage.................................... -0.3V to +36.0V
V PHASE , Phase Voltage........... V BOOT - 7.0V to V BOOT + 0.3V
V FCCM , FCCM Voltage ........................... -0.3V to V CC + .0.3V
V PWM , PWM Voltage ............................... -0.3V to V CC + 0.3V
V UGATE , UGATE Voltage ....... V PHASE - 0.3V to V BOOT + 0.3V
V LGATE , LGATE Voltage .......................... -0.3V to V CC + 0.3V
ESD Protection on all Pins ....................................2 kV (HBM)
DC CHARACTERISTICS
Electrical Specifications: Unless otherwise noted, V CC = 5V, T J = -40°C to +125°C
Parameters
Sym
Min
Typ
Max
Units
Conditions
V CC Supply Requirements
Recommended Operating Range
V CC
4.5
5.0
5.5
V
Bias Supply Voltage
I VCC
—
80
—
μA
PWM pin floating,
V FCCM = 5V
UVLO (Rising V CC )
UVLO (Falling V CC )
Hysteresis
—
2.40
—
3.40
2.90
500
3.90
—
—
V
V
mV
PWM Input Requirements
PWM Input Current
PWM Rising Threshold
PWM Falling Threshold
Tri-State Shutdown Hold-off Time
I PWM
t TSSHD
—
—
0.70
3.50
100
250
-250
1.00
3.80
175
—
—
1.30
4.10
250
μA
μA
V
V
ns
V PWM = 5V
V PWM = 0V
T A = +25°C, Note 2
FCCM input Requirements
FCCM Low Threshold
FCCM High Threshold
0.50
—
—
—
—
2.0
V
V
Output Requirements
High Drive Source Resistance
—
1.0
2.5
Ω
500 mA source current,
Note 1
High Drive Sink Resistance
—
1.0
2.5
Ω
500 mA sink current,
Note 1
High Drive Source Current
High Drive Sink Current
Low Drive Source Resistance
—
—
—
2.0
2.0
1
—
—
2.5
A
A
Ω
Note 1
Note 1
500 mA source current,
Note 1
Low Drive Sink Resistance
—
0.5
1.0
Ω
500 mA sink current,
Note 1
Low Drive Source Current
Low Drive Sink Current
—
—
2.0
3.5
—
—
A
A
Note 1
Note 1
Note 1:
2:
Parameter ensured by design, not production tested.
See Figure 4-1 for parameter definition.
? 2008 Microchip Technology Inc.
DS22083A-page 3
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