LA5613 datasheet(3/4 Pages) SANYO

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No. 5669-3/4

LA5613

Pin Functions

Function Table (r: built-in,

×: not built-in)

Usage Notes

Pin No.

Symbol

Function

VCC2

Low-voltage input

VO2

5.1-V/0.7-A regulator output, with on/off, current limiter thermal shutdown.

STB

VO1 and VO2 on/off control. Active high.

GND

Substrate of the LA5613 (minimum potential)

VO1-FIL

VO1 ripple filter capacitor connection

VO1

Ripple filter 0.3-A output, with on/off, current limiter thermal shutdown.

VCC1

High-voltage input

SENSE

VCC1 voltage detection

Phase compensation and VCC1 adjustment. Connect resistors between this pin and SENSE or ground.

VOERR

Switching register control amplifier drive output

Notes: 1. CL: Current limiter

2. TSD: Thermal shutdown

Circuit block

VO1

VO2

Control amplifier

Function

Input line

VCC1

VCC2

VCC1

Output current protection

Thermal shutdown protection

On/off control

Overvoltage protection

• The relationship VCC1 ≥ VCC2 must hold at all times when power is applied.

• Power should be applied to VCC1 and VCC2 simultaneously. Do not use this IC with only one or the other voltage

applied.

• This IC will be destroyed if the VO1 output load is shorted. Do not short the outputs of this IC.

Logic Table

Conditions: When VCC1 ≥ VCC2

(However, the conditions 11.9 V

≤ V

CC1 ≤ 12.7 V and 5.5 V ≤ VCC2 ≤ 6.5 V must also apply.)

STB

VO1, VO2

L or open

Notes: 1. "H" for STB denotes high level; "L" denotes low level.

2. "H" for VO denotes output ON voltage; "L" denotes output OFF voltage.

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