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TA2015FN

Part Number	TA2015FN
Manufacturer	Toshiba Semiconductor
Description	RIPPLE FILTER
Published	Oct 5, 2005
Detailed Description	TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA2015FN Ripple Filter (1.5V USE) TA2015FN The TA2015FN i...
Datasheet	TA2015FN PDF File

Overview

TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA2015FN Ripple Filter (1.
5V USE) TA2015FN The TA2015FN is a ripple filter IC, which is developed for low voltage operation (1.
5V).
It is especially suitable for supplying voltage for headphone stereo etc.
Features · Built−in a power switch · Excellent ripple rejection ratio: RR = 43dB (typ.
) · Ripple filter output voltage can be controlled by external resistor.
· Output voltage is limited to VRF = 1.
5V (typ.
) · Built−in two constant current sources.
· Excellent low voltage operation.
· Low quiescent supply current (VCC = 1.
2V, Ta = 25°C) ICC = 0.
7mA (typ.
) · Operating supply voltage range.
(Ta = 25°C) VCC (opr) = 0.
9~2.
2V Block Diagram Weight: 0.
04g (typ.
) Marking 1 2002-10-30 Terminal Explanation Terminal Voltage: Typical Terminal Voltage with Test Circuit (VCC = 1.
2V, Ta = 25°C, non load) Terminal No.
Name 1 IO1 2 IO2 3 GND Function Output of constant current source 1 Operating condition PW SW : H MODE SW : L Output of constant current source 2 Synchronized to PW SW — Internal Circuit — Ripple filter terminal Ripple filter output voltage 4 RF in can be controlled by external resistor.
(See application note) Mode switch 5 Mode SW VCC : IO2, RF OUT on GND / OPEN : IO1, IO2 on Power switch 6 PW SW VCC : Power on GND / OPEN : Power off 7 VCC — Base biasing terminal for ripple filter transistor.
Output current capacity is 8 Base 1.
2mA with only built-in PNP transistor.
This capacity can be increased with an external transistor QX.
9 Comp Phase compensation terminal for a ripple filter circuit 10 RF out Ripple filter output — TA2015FN Terminal Voltage (V) — — 0 1.
14 — — 1.
2 0.
5 0.
5 1.
14 2 2002-10-30 TA2015FN Application Note 1.
Operation mode of constant current source Operation mode is decided by switch condition shown in table.
1.
Output of constant current source 1 can be used as a reset circuit by changing start up timing of PW SW, MODE SW.
2.
Ripple filter output...

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TA2015FN RIPPLE FILTER - Toshiba Semiconductor

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