HA16114FP View Datasheet(PDF) - Hitachi -> Renesas Electronics

Part Name

Description

MFG CO.

HA16114FP

Switching Regulator for Chopper Type DC/DC Converter

Hitachi -> Renesas Electronics 

HA16114P/PJ/FP/FPJ, HA16120FP/FPJ

Block Diagram

Vref

ADJ

DB

ON/OFF

TM

CL(−)

VIN

OUT

16

15

14

13

12

11

10

9

ADJ

VIN

ON/OFF from

UVL

1k

2.5V

bandgap

reference

voltage

generator

UVL

H

UVL

L VL VH output

OVP

Triangle waveform

generator

1.6 V

Latch

SQ

R

VIN

0.3V

PWM COMP

+

−

+

1.0 V

0.3 V 1k

Latch reset pulses

1.1 V

RT

Bias

current

from

UVL +

EA

−

1

2

3

4

5

GND

SYNC

RT

CT

IN(−)

0.2 V

−+

CL

Vref

from

UVL

*1

OUT

NAND (HA16114)

6

7

8

E/O

IN(+)

P.GND

Note: 1. The HA16120 has an AND gate.

4

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