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參數資料
| 型號： | MIC2507BM |
| 廠商： | MICREL INC |
| 元件分類： | 外設及接口 |
| 英文描述： | Quad Integrated High-Side Switch Not Recommended for New Designs |
| 中文描述： | 4 CHANNEL, HALF BRIDGE BASED PRPHL DRVR, PDSO14 |
| 封裝： | SOIC-14 |
| 文件頁數： | 1/8頁 |
| 文件大小： | 86K |
| 代理商： | MIC2507BM |
August 1999
1
MIC2507
MIC2507
Micrel
MIC2507
Quad Integrated High-Side Switch
Not Recommended for New Designs
General Description
The MIC2507 is a quad integrated high-side power switch
that consists of four protected N-channel MOSFET output
pass transistors each with a dedicated TTL compatible input
and charge pump. The MIC2507 can be used instead of
separate high-side drivers and MOSFETs in many low-
voltage applications.
The MIC2507 switches 2.7V to 7.5V and can deliver at least
1A continuous current from any individual output. A slow
turn-on feature prevents high inrush current when switching
capacitive loads. The internal control circuitry is powered
from switch #1’s supply input. The MIC2507 allows any
output to be pulled higher than its input voltage while in the off
state.
A multipurpose open-drain fault flag output indicates overcur-
rent limiting, open-load detection, and thermal shutdown.
Overcurrent limiting is internally fixed and requires no exter-
nal components.
Open-load detection is active only when the switch is off.
Open-load detection requires one high-value resistor from
the load to the supply.
Thermal shutdown turns off the output if the die temperature
exceeds approximately 135
°
C. The switch automatically
restarts when the temperature falls 10
°
C.
The MIC2507 is available in SOIC packages with a tempera-
ture range of –40
°
C to +85
°
C.
Typical Application
5
10
6
9
MIC2507BN
IN1
IN4
OUT1
CTL1
CTL4
GND
FLG
OUT4
“Fault”
LED
+2.7V to +7.5V
1
14
2
13
3
12
4
11
CTL2
CTL3
OUT2
OUT3
7
8
IN2
IN3
Load
Load
Load
Load
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Control
Input #3
Control
Input #4
Control
Input #2
Control
Input #1
Distributed-Load Power Switch
Features
2.7V to 7.5V supply
Current limit
Open-load detection
Thermal shutdown
Open-drain fault flag
<1
μ
A off-state current
Slow turn-on and fast turnoff
1ms typical rise time (load dependent)
Low MOSFET on-resistance
120m
typical at 5V
130m
typical at 3.3V
Applications
Battery Management
Power Management
Ordering Information
Part Number
MIC2507BM
Temperature Range
–40
°
C to +85
°
C
Package
14-lead SOIC
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
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