SC4612HMLTRT Просмотр технического описания (PDF) - Semtech Corporation

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SC4612HMLTRT

40V Synchronous Buck Controller

Semtech Corporation 

SC4612H

Electrical Characteristics (continued)

Parameter

Symbol

Conditions

Current Limit - Low Side RDS(ON)

Current Limit Threshold Voltage

VCL

Error Amplifier

Feedback Voltage

VFB

Input Bias Current

IFB

Open Loop Gain(1)

TJ=0 to +70OC

TJ=-40 to + 85OC

TJ=-40 to +125OC

VFB=0.5V

Unity Gain Bandwidth(1)

Output Sink Current

Output Source Current

Slew Rate(1)

Open Loop; VFB=0V

Open Loop; VFB=0.6V

SS/EN

Disable Threshold Voltage

Soft Start Charge Current

Soft Start Discharge Current(1)

Disable Low to Shut Down

VSS-DIS

ISS

ISSD

Hiccup

Hiccup Duty Cycle

CSS=0.1uF; current limit condition

Gate Drive

Gate Drive On Resistance (H)(2)

Gate Drive On Resistance (H)(2)

DL/DH Source/Sink Peak Current(2)

ISOURCE=100mA

ISINK=100mA

C=2000pF

DL/DH Rise/Fall Time(2)

C=2000pF

Minimum Non-Overlap(1)

Minimum On Time(2)

Thermal Shutdown

tDEAD

tON-MIN

Shutdown Temperature(2)

Thermal Shutdown Hysteresis (2)

NOTES:

(1) Guaranteed by design, not production tested.

(2) Guaranteed by characterization.

(2) This device is ESD sensitive, use of standard ESD handling precautions is required.

Min Typ Max Units

100

mV

0.495 0.500 0.505

V

0.492 0.500 0.508

V

0.488 0.500 0.512

V

200

nA

60

dB

7

10

MHz

900

mA

1100

mA

1

V/ms

500

mV

25

mA

1

mA

50

ns

1

%

3

4

W

3

4

W

1.4 1.7

A

20

ns

30

ns

110

ns

165

OC

15

OC



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