CS51312GD16 datasheet(2/18 Pages) CHERRY

номер детали	CS51312GD16

подробное описание детали	Synchronous CPU Buck Controller for 12V Only Applications

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производитель	CHERRY [Cherry Semiconductor Corporation]

домашняя страница	http://www.cherrycorp.com/

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Package Pin Description

PACKAGE PIN #

PIN SYMBOL

FUNCTION

Absolute Maximum Ratings

Pin Symbol

Pin Name

VMAX

VMIN

ISOURCE

ISINK

Operating Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C

Lead Temperature Soldering

Reflow (SMD styles only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60 sec. max above 183°C, 230°C peak

Storage Temperature Range, TS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65° to 150°C

ESD Susceptibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2kV

VCC1

IC Bias and Low Side Driver

16V

-0.3V

N/A

1.5A Peak

Power Input

200mA

VCC2

IC High Side Driver Power Input

20V

-0.3V

N/A

1.5A Peak

200mA

COMP

Compensation Pin

6V

-0.3V

1mA

5mA

VFB, VOUT, VID0-4

Voltage Feedback Input, Output

6V

-0.3V

1mA

Voltage Sense Pin, Voltage

ID DAC Inputs

COFF

Off-Time Pin

6V

-0.3V

1mA

50mA

GATE(H)

High-Side FET Driver

20V

-0.3V DC

1.5APeak

1.5A Peak

GATE(L)

Low-Side FET Driver

16V

200mA DC 200mA DC

PWRGD

Power-Good Output

6V

-0.3V

1mA

30mA

OVP

Overvoltage Protection

15V

-0.3V

30mA

1mA

Gnd

Ground

0V

1.5A Peak

N/A

200mA DC

1,2,3,4,5

VIDO – VID4

Voltage ID DAC inputs. These pins are internally pulled up to

5.65V if left open. VID4 selects the DAC range. When VID4 is

high (logic one), the Error Amp reference range is 2.125V to

3.525V with 100mV increments. When VID4 is low (logic zero),

the Error amp reference voltage is 1.325V to 2.075V with 50mV

increments.

6VFB

Error amp inverting input, PWM comparator non-inverting

input, current limit comparator non-inverting input, PWRGD

and OVP comparator input.

7VOUT

Current limit comparator inverting input.

8VCC1

Input power supply pin for the internal circuitry and low side

gate driver. Decouple with filter capacitor to Gnd.

9VCC2

Input power supply pin for the high side gate driver.

Decouple with filter capacitor to Gnd.

10

GATE(H)

High side switch FET driver pin .

11

Gnd

Ground pin and IC substrate connection.

12

GATE(L)

Low side synchronous FET driver pin.

13

OVP

Overvoltage protection pin. Drives high when overvoltage

condition is detected on VFB.

14

PWRGD

Power-Good Output. Open collector output drives low when

VFB is out of regulation.

15

COFF

Off-Time Capacitor Pin. A capacitor from this pin to Gnd sets

the off time for the regulator

16

COMP

Error amp output. PWM comparator inverting input.

A capacitor on this pin provides error amp compensation, and

determines the Soft Start and hiccup timing. Pulling COMP

below 1.1V (typ) turns off both GATE drivers and shuts down

the regulator.

Аналогичный номер детали - CS51312GD16

производитель	номер детали	датащи	подробное описание детали
ON Semiconductor	CS51312GD16	552Kb / 22P	Synchronous CPU Buck Controller for 12 V Only Applications July, 2006 ??Rev. 3

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Аналогичное описание - CS51312GD16

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