CS5111 datasheet(2/16 Pages) ONSEMI

2 / 16 page

CS5111

http://onsemi.com

Figure 1. Block Diagram

VFB1

VFB2

SELECT

COMP

IBIAS

COSC

VREG

CDELAY

WDI

Multiplexer

Oscillator

Overvoltage

Bandgap

Reference

Switcher Error Amplifier

COMP

Logic

–

Base

Drive

Current Sense Amplifier

–

Linear

Error Amplifier

–

1.4 A

VIN

VSW

GND

ENABLE

VLIN

RESET

Switcher Shutdown

Current

Limit

Over

Temperature

1.25 V

RESET &

Watchdog Timer

ABSOLUTE MAXIMUM RATINGS*

Rating

Value

Unit

Logic Inputs/Outputs (ENABLE, SELECT, WDI, RESET)

–0.3 to VLIN

VLIN

–0.3 to 10

VIN, VREG:

DC Input Voltage

Peak Transient Voltage (40 V Load Dump @ 14 V VIN)

–0.3 to 26

–0.3 to 54

VSW Peak Transient Voltage

COSC, CDelay, COMP, VFB1, VFB2

–0.3 to VLIM

Power Dissipation

Internally Limited

–

VLIN Output Current

Internally Limited

–

VSW Output Current

Internally Limited

–

RESET Output Sink Current

5.0

ESD Susceptibility (Human Body Model)

2.0

ESD Susceptibility (Machine Model)

200

Storage Temperature

–65 to 150

°C

Lead Temperature Soldering:

Reflow: (SMD styles only) (Note 1.)

230 peak

°C

1. 60 second maximum above 183

°C.

*The maximum package power dissipation must be observed.

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