CS51313GD16 datasheet(5/20 Pages) CHERRY

Part #	CS51313GD16

Description	Synchronous CPU Buck Controller Capable of Implementing Multiple Linear Regulators

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Manufacturer	CHERRY [Cherry Semiconductor Corporation]

Direct Link	http://www.cherrycorp.com/

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5

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

s

General Electrical Specifications

VCC Monitor Start Threshold

7.9

8.4

8.9

V

VCC Monitor Stop Threshold

7.6

8.1

8.6

V

Hysteresis

Start - Stop

0.15

0.30

0.60

V

VCC Supply Current

No Load on GATE(H), GATE(L)

12

20

mA

Note 1: All pins are rated 2kV except for the VREF pin (Pin 5) which is typically rated at 800V.

Note 2: The IC power dissipation in a typical application with VCC = 12V, switching frequency fSW = 250kHz, 50nc

MOSFETs and RθJA = 115°C/W yields an operating junction temperature rise of approximately 52°C, and a junction tem-

perature of 77°C with an ambient temperature of 25°C.

Note 3: Guaranteed by design, not 100% tested in production.

Electrical Characteristics: 0˚C < TA < 70˚C; 0˚C < TJ < 125˚C; 9V < VCC < 14V;

2.0V DAC Code (VID4 = VID3 =VID2 = VID1 = 0, VID0 = 1), CGATE(H) = CGATE(L) = 3.3nF, COFF = 390pF; Unless otherwise stated.

+

-

+

-

+

-

VFB

COMP

COFF

OFF

TIME

PWM COMP

DISCHARGE

COMP

VOUT

VREF

VID0

VID1

VID2

VID3

VID4

DAC

BANDGAP

REFERENCE

+

-

1.10V

EA

CURRENT LIMIT

86mV

0.25V

FAULT

LATCH

R

S

Q

VCC

OVP

PWRGD

Gnd

GATE(L)

GATE(H)

VCC

UVLO

NONOVERLAP

LOGIC

-

+

-

Block Diagram

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