MB3800

Document Number: 002-08716 Rev. *A

Page 4 of 21

3. Block Diagram

4. Absolute Maximum Ratings

*: When mounted on a 10 cm square double-sided epoxy board.

WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current, temperature, etc.) in

excess of absolute maximum ratings. Do not exceed these ratings.

Parameter

Symbol

Condition

Rating

Unit

Min

Max

Power supply voltage

——

16

V

Output source current

—–50

mA

Output sink current

—50

mA

Allowable dissipation

FPT-8P-M01, Ta

+25C

—

570*

mW

FPT-8P-M02, Ta

+25C

—

430*

mW

SSOP-8, Ta

+25C

—

580*

mW

Storage temperature

—

–55

+125

C

3

7

6

2

4

5

1

8

0.6 V–

0.1 V–

0.1 V

36 k

Ω

0.5 V

PWM

Comp.

OUT

–

+

+

1.25 V

Error Amp

500

Ω

–

+

–IN

FB

GND

SCP

BR/CTL

DTC 0.6 V

0.3 V

30 k

Ω

OSC

+

Output drive

control circuit

Soft start SCP

Sawtooth wave

oscillator

Reference

voltage supply