CS51313 datasheet(5/20 Pages) CHERRY

Part #	CS51313

Description	Synchronous CPU Buck Controller Capable of Implementing Multiple Linear Regulators

PDF	20 Pages

Scroll/Zoom	100%

Manufacturer	CHERRY [Cherry Semiconductor Corporation]

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

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5 / 20 page

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

General Electrical Specifications

VCC Monitor Start Threshold

7.9

8.4

8.9

VCC Monitor Stop Threshold

7.6

8.1

8.6

Hysteresis

Start - Stop

0.15

0.30

0.60

VCC Supply Current

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

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

CURRENT LIMIT

86mV

0.25V

FAULT

LATCH

VCC

OVP

PWRGD

Gnd

GATE(L)

GATE(H)

VCC

UVLO

NONOVERLAP

LOGIC

Block Diagram

CS51313 Datasheet(PDF) 5 Page - Cherry Semiconductor Corporation

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