L6722 datasheet(12/34 Pages) STMICROELECTRONICS

номер детали	L6722

подробное описание детали	3 Phase controller for DC/DC converters

PDF	34 Pages

Scroll/Zoom	100%

производитель	STMICROELECTRONICS [STMicroelectronics]

домашняя страница	http://www.st.com

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12 / 34 page

3 Electrical specifications

L6722

12/34

Reference

kREF

Output Voltage Accuracy

FBR = VOUT; FBG = GNDOUT;

-1

Error amplifier and remote buffer

EA DC Gain

Slew Rate

COMP = 10pF to SGND

µs

RB DC Gain

V/V

CMRR

Remote Buffer Common

Mode Rejection Ratio

Differential current sensing and offset

IOCTH

Over Current Threshold

µA

kIDROOP

Droop Current Deviation

IDROOP = 0 to 105µA; RD=5.1kΩ

-3

µA

IOFFSET

Offset Current

µA

Gate drivers

tRISE_UGATEx HS Rise Time

BOOTx - PHASEx = 10V;

CUGATEx to PHASEx = 3.3nF

IUGATEx

HS Source Current

BOOTx - PHASEx = 10V

1.5

RUGATEx

HS Sink Resistance

BOOTx - PHASEx = 12V

2.5

Ω

tRISE_LGATEx LS Rise Time

VCC = 10V;

CLGATEx to PGNDx = 5.6nF

ILGATEx

LS Source Current

VCC = 10V

1.5

RLGATEx

LS Sink Resistance

VCC = 12V

1.8

Ω

Protections

OVP

VSEN Rising

1.085

1.120

1.155

Pre-OVP

Preliminary Over voltage

Protection

FBR Rising

1.25

Hysteresis

300

VFB-DISC

FB Disconnection

VCS- Rising, above VSEN

1.375

UVP

Under Voltage Protection

VSEN Falling, vs. REF_IN

-250

-300

-350

PGOOD

PGOOD Threshold

VSEN Falling, vs. REF_IN

-100

-150

-200

VPGOOD

Voltage Low

I = -4mA

0.4

Table 4.

Electrical characteristics (continued)

(VCC = 12V±15%, TJ = 0°C to 70°C unless otherwise specified).

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

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