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| 型号： | W671330P |
| 厂商： | WINBOND ELECTRONICS CORP |
| 元件分类： | 模拟传输电路 |
| 英文描述： | TELECOM-SLIC, PQCC28 |
| 封装： | PLASTIC, LCC-28 |
| 文件页数： | 27/48页 |
| 文件大小： | 1344K |
| 代理商： | W671330P |
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W671300 SERIES
7.3.4. High Voltage Decoupling
The 100V rating of the device will require a capacitor of higher voltage rating for decoupling.
Suggested decoupling values for all device pins are 0.1F. Standard surface mount ceramic
capacitors are rated at 100V. For applications driven by low cost and small size, the decoupling
scheme shown below could be implemented.
VBH
VBL
0.22
W6713xx
FIGURE 14: ALTERNATE DECOUPLING SCHEME
It is important to place the external diode between the VBH pin and the decoupling capacitor.
Attaching the decoupling capacitor directly to the VBH pin will degrade the reliability of the device.
This applies to both single and stacked and decoupling arrangements.
If VBL and VBH are tied together to override the battery switch function, then the external diode is not
needed and the decoupling may be attached directly to VBH.
7.4. UNCOMMITTED SWITCH
The uncommitted switch is a three terminal device designed for system flexibility. The Switch Control
logic input, SWC , allows switch operation regardless of device operating mode. The switch is
activated by a logic LOW. The positive and negative terminals of the switch are labeled SW+ and SW-
respectively.
7.4.1. Relay Driver
The uncommitted switch may be used as a relay driver by connecting SW+ to the relay coil and SW-
to ground. The switch is designed to have a maximum on voltage of 0.6V with a load current of 45mA.
Publication Release Date: March 2004
- 33 -
Revision 0.5
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