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BA6893AK Datasheet 4-channel driver and power controller

Manufacturer: ROHM

Overview: Optical disc ICs 4-channel driver and power controller BA6893AK The BA6893AK is a 4-channel driver and power supply that includes the reset, recharge, and shock detection circuits required for portable CD players on a single IC. The driver block power supply uses the on-chip switching regulator, making this component an ideal choice for low-power sets.

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Datasheet Details

Part number BA6893AK
Manufacturer ROHM
File Size 287.24 KB
Description 4-channel driver and power controller
Download BA6893AK Download (PDF)

General Description

s BA6893AK 608 Optical disc ICs FInput / output circuits BA6893AK 609 Optical disc ICs BA6893AK 610 Optical disc ICs BA6893AK 611 Optical disc ICs BA6893AK 612 Optical disc ICs BA6893AK 613 Optical disc ICs BA6893AK 614 Optical disc ICs BA6893AK 615 Optical disc ICs BA6893AK FElectrical characteristics (unless otherwise noted, Ta = 25_C, BATT = 2.4V, VSYS1 = VSYS2 = 3.2V, VREF = 1.6V, CHGVCC = 0V, and fCLK = 88.2kHz) 616 Optical disc ICs BA6893AK 617 Optical disc ICs BA6893AK 618 Optical disc ICs BA6893AK 619 Optical disc ICs FCircuit operation (1) Empty detector block When the voltage applied to the BSEN pin falls below the detector voltage, EMP (pin 35) goes from high level to low level (open-collector output).

The detector voltage has 50mV (Typ.) of hysteresis to prevent output chattering.

Use SEL (pin 42) to switch the detection voltage as shown below.

Key Features

  • 1) Four H-bridge driver circuits. 2) DC to DC converter control circuit. 3) Reset circuit. 4) Shock detection circuit. 5) Battery recharge circuit. FAbsolute maximum ratings (Ta = 25_C) 6) 7) 8) 9) 10) Ripple filter circuit. Audio reference output. Low power consumption. Thermal shutdown circuit. QFP44 package. FRecommended operating conditions (Ta = 25_C) 606 Optical disc ICs FBlock diagram BA6893AK 607 Optical disc ICs FPin.

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