Fujitsu MB3788 manual Pwm

Page 9

MB3788

(Continued)

 

Parameter

Symbol

Conditions

 

Values

 

 

Unit

 

 

 

 

 

 

Min

Typ

Max

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Threshold voltage

Vt0

Duty cycle = 0 %

1.05

1.3

 

V

 

 

 

 

 

 

 

 

 

Vt100

Duty cycle = 100 %

1.9

2.25

 

V

 

 

 

PWM

 

 

 

 

 

 

 

 

Input sink current

IIM+

120

 

A

comparator

 

 

 

 

 

 

 

 

 

 

Input source current

IIM-

-2

mA

 

 

 

 

 

 

 

 

 

 

Input bias current

IIB

VI = 0 V

-1.0

-0.5

 

A

 

 

 

 

 

 

 

 

 

 

Threshold voltage

Vth

0.7

1.4

2.1

 

V

 

 

 

 

 

 

 

 

 

Control

Input current

IIH

VCTL = 5 V

100

200

 

A

 

 

 

 

 

 

 

 

 

IIL

VCTL = 0 V

-10

10

 

A

 

 

 

 

 

 

 

 

 

 

 

 

Source current

IO

-40

mA

 

 

 

 

 

 

 

 

 

Output

Sink current

IO

RB = 50 Ω

18

30

42

 

mA

 

 

 

 

 

 

 

 

 

 

Output leak current

ILO

VO = 18 V

20

 

A

 

 

 

 

 

 

 

 

 

All devices

Standby current

ICCO

0

10

 

A

 

 

 

 

 

 

 

 

Power current at output OFF

ICC

1.9

2.7

mA

 

 

 

 

 

 

 

 

 

 

9

Image 9
Contents Features DescriptionPackage PIN Assignment MB3788Pin No Pin name Descriptions PIN DescriptionMB3788 Block DiagramFunctional Description Low input voltage malfunction fail-safe circuit Timer and latch-type short-circuit protection circuitParameter Symbol Conditions Values Unit Min Typ Max Parameter Symbol Conditions Ratings Unit Min MaxAbsolute Maximum Ratings Recommended Operating ConditionsParameter Symbol Conditions Value Unit Min Typ Max Electical CharacteristicsPWM TA = +25C Supply voltage VCC 8 12 16 Standard Characteristic Curves180 HOW to SET Output Voltage OFF HOW to SET Output CurrentLatch-Type Short-Circuit Protection Circuit Processing without using SCP Pin Processing Without Using SCP PINBasic Voltage-Drop Type DC/DC Converter Circuit DC/DC Converter a V φ Characteristic Measurement Diagram SCP Inpwm GND Application CircuitPart number Package Remarks Ordering InformationIndex Package DimensionFujitsu Limited