HA16114 View Datasheet(PDF) - Renesas Electronics

Part Name

Description

Manufacturer

HA16114

Switching Regulator for Chopper Type DC/DC Converter

Renesas Electronics 

HA16116FP/FPJ, HA16121FP/FPJ

Overall Waveform Timing Diagram (for Application Examples (1))

12 V

VIN

0V

VTIM,

VON/OFF

2.8 V

2.1 V

VTIM,

VON/OFF

2.1 V

1.4 V

0V

(V)

3.0

2.0

VE/O,

VCT,

VDB

1.0

On

VE/O

VCT

triangle wave

On

On

On

On

Off Off Off Off

Off

VDB

0.0

12 V

VCL

11.8 V

0V

VOUT*1 12 V

PWM

pulse 0 V

DC/DC output

(example for

positive

voltage)

Pulse-by-pulse

current limiter

operates

IC operation

states

Power IC on

supply on

Soft start

Steady-state

operation

Overcurrent

detected;

intermittent

operation

Overcurrent

cleared;

steady-state

operation

Quick

shut-off

Power supply off,

IC off

Note: 1.This PWM pulse is on the step-down/inverting control channel.

The booster control channel output consists of alternating L and H of the IC ÒonÓ cycle.

Rev.2.0, Sep.18.2003, page 30 of 33

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