Q67006-A9415 データシートの表示（PDF） - Infineon Technologies

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Q67006-A9415

Power-Charge-Pump and Low-Drop Voltage Regulator

Infineon Technologies 

TLE 4307

Vac = 12 V

LS = 4 mH

VLine RS = 15 Ω

D1

4x1N4001

or

B40C800

I1

CS

100 pF

SL 4

TLE 4307

Power

Charge

Pump

Very

Low-Drop

5Q

Regulator

2

CC C

470 µF

15 V

3

GND

CQ1

220 nF

VOUT = 3.8 V

IOUT = 0.4 A

CQ2

22 µF

6.3 V

AES02794

Figure 3 Application Example

Application Description

The IC is meant to be used with a DC power supply. The power charge pump limits the

energy that is needed to drive the load at the output Q of the IC. The energy is stored to

a capacity CC, connected to pin C. When pin C reaches VC,off, the power charge pump is

switched off. Since the power supply consists of the inductance and a parasitic series

resistance, the remaining available energy is dissipated in the external power supply and

therefore does not stress the IC with this dispensable energy. The very low drop

regulator is provided with the energy, stored in CC. The regulator requires an output

capacitor CQ for the stability of the regulating circuit. Stability is guaranteed at values

above 22 µF and an ESR ≤ 1 Ω within the operating temperature range.

Data Sheet Rev. 1.1

4

2000-10-11

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