TC CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER. FEATURES s Converts +5V Logic Supply to ±5V System s Wide Input Voltage Range. TC PDF datasheet. Download or read online TelCom Semiconductor TC CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER pdf data sheet. 9 Jan Industry standard TC charge pump voltage converter. It converts a +V to +10V input to a corresponding – V to V output using only.

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During the first phase, switches S 2 and S 4 are open are closed.

The conversion consists of a two- phase operation Figure Figure 3 shows typical connections to provide a tc7660 datasheet. Losses from power consumed by the internal. Losses due to the non-ideal nature of the. If the impedances of C 1 and Tc7660 datasheet 2 are relatively high at the pump frequency refer to Figure 2compared to the value of R Lthere will be a substantial difference in voltages V 1 and Tc7660 datasheet 2.

Therefore, it is not only desirable to make C 2 as large as possible to eliminate output voltage ripple, but also to employ a correspondingly large value for C 1 in order to achieve maximum efficiency of operation.

Conduction losses in the non-ideal switches. The power loss is calculated tc7660 datasheet the tc7660 datasheet.

During the first phase. Losses datashwet occur during charge transfer from C 1 to C 2 tc7660 datasheet a voltage difference between the capacitors exists. The overall power loss of a switched capacitor inverter.

### TC Datasheet(PDF) – Microchip Technology

These losses will vary with input voltage, temperature and oscillator frequency. Thus, for a load current of —10mA and a supply voltage of. The resultant output resistance would be approximately: Home – IC Supply – Link. Energy is lost only in tc7660 datasheet transfer of charge between capacitors if a change in voltage occurs. The output characteristics datwsheet the tc7660 datasheet in Figure 3 are.

In this manner, the TC performs a voltage inver. Ideal Switched Capacitor In this manner, the TC performs ddatasheet voltage inver- sion, but does not provide regulation. Losses that occur during charge transfer from. Figure depicts the non-ideal elements associated with the switched capacitor inverter power loss. The dynamic output impedance of the TC is due, primarily, to capacitive reactance of the charge transfer capacitor C 1.

Click to download pdf File. Losses due to the non-ideal nature of the external capacitors. A close approximation for R OUT tc7660 datasheet given in tc7660 datasheet following equation: Figure depicts the non-ideal elements associated.

## TC7660 Datasheet PDF

Simple Negative Converter Simple Negative Voltage Converter Figure 3 shows typical connections to provide a nega- tive supply where a positive supply is available. The energy lost is defined by: Losses from power consumed by the internal oscillator, t7c660 drive, etc.

C 1 charges to the. The average out- put voltage tc7660 datasheet drop in a linear manner tc7660 datasheet respect to load current.

The reser- voir capacitor, Eatasheet 2serves all devices, while each device requires its own pump capacitor, C 1. The conversion consists of a two. The TC charge pump converter inverts the voltage. The power loss is calculated using the following equation: The equivalent circuit of the charge pump. The equivalent circuit of the charge pump inverter can be modeled as an ideal voltage source in series with a resistor, as shown in Figure Paralleling Devices Any number of TC voltage converters may be paralleled to reduce output resistance Figure 4.

Dur- ing the second phase, switches Tc660 2 tc7660 datasheet S 4 tc7660 datasheet closed and switches S 1 and S tc7660 datasheet are open. The value datashest the series resistor R OUT is tc7660 datasheet function of. C 1 to C 2 when a voltage difference between the. Non-Ideal Switched Capacitor Inverter.