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| 型号： | TC110DM |
| 厂商： | Microchip Technology |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL BATT CHARGER TC110 |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电池充电器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | MCP73832，TC110503 |
| 主要属性： | 1 芯锂离子/锂聚合物电池，5V @ 500mA，0.9 ~ 3 V 输入 |
| 次要属性： | LED 状态指示器 |
| 已供物品： | 板，CD |
| 产品目录页面： | 668 (CN2011-ZH PDF) |
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TC110
PFM/PWM Step-Up DC/DC Controller
Features
General Description
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?
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Assured Start-up at 0.9V
50 μ A (Typ) Supply Current (f OSC = 100kHz)
300mA Output Current @ V IN ≥ 2.7V
0.5 μ A Shutdown Mode
100kHz and 300kHz Switching Frequency
Options
The TC110 is a step-up (Boost) switching controller
that furnishes output currents of up to 300mA while
delivering a typical efficiency of 84%. The TC110
normally operates in pulse width modulation mode
(PWM), but automatically switches to pulse frequency
modulation (PFM) at low output loads for greater
efficiency. Supply current draw for the 100kHz version
? Programmable Soft-Start
? 84% Typical Efficiency
? Small Package: 5-Pin SOT-23A
Applications
is typically only 50 μ A, and is reduced to less than
0.5 μ A when the SHDN input is brought low. Regulator
operation is suspended during shutdown. The TC110
accepts input voltages from 2.0V to 10.0V, with a
guaranteed start-up voltage of 0.9V.
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Palmtops
Battery-Operated Systems
Positive LCD Bias Generators
Portable Communicators
The TC110 is available in a small 5-Pin SOT-23A
package, occupies minimum board space and uses
small external components (the 300kHz version allows
for less than 5mm surface-mount magnetics).
Functional Block Diagram
Device Selection Table
Output
Part
Voltage Package
Number
(V)*
Osc.
Freq.
(kHz)
Operating
Temp.
Range
Battery
3V
+
–
10 μ F
+
47 μ H
D1
IN5817
Si9410DY
47 μ F
+
V OUT
TC110501ECT
TC110331ECT
TC110301ECT
TC110503ECT
5.0
3.3
3.0
5.0
5-Pin SOT-23A
5-Pin SOT-23A
5-Pin SOT-23A
5-Pin SOT-23A
100
100
100
300
-40 ° C to +85 ° C
-40 ° C to +85 ° C
-40 ° C to +85 ° C
-40 ° C to +85 ° C
5
EXT
TC110
4
GND
Tantalum
TC110333ECT
TC110303ECT
3.3
3.0
5-Pin SOT-23A
5-Pin SOT-23A
300
300
-40 ° C to +85 ° C
-40 ° C to +85 ° C
V OUT
1
V DD
2
SHDN/SS
3
*Other output voltages are available. Please contact
Microchip Technology Inc. for details.
Package Type
5-Pin SOT-23A
R
C
3V to 5V Supply
OFF ON
*RC Optional
EXT
5
TC110
GND
4
1
2
3
V OUT
V DD SHDN/SS
NOTE: 5-Pin SOT-23A is equivalent to the EIAJ SC-74A
2002 Microchip Technology Inc.
DS21355B-page 1
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| TC110G14AF-0017 | 制造商:SMSC 功能描述: |
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