CS5127GDWR16 View Datasheet(PDF) - Cherry semiconductor

Part Name

Description

View to exact match

CS5127GDWR16

Dual Output Nonsynchronous Buck Controller with Sync Function and Second Channel Enable

Cherry semiconductor 

Electrical Characteristics: 0¡C < TA < 70¡C; 0¡C < TJ < 125¡C; 9.4V < VIN < 20V; CT = 330 pF; RT = 27k½;

unless otherwise stated.

PARAMETER

s Error Amplifiers

VFB Reference Voltage

Input Bias Current

Open Loop Gain

Unity Gain Bandwidth

PSRR

COMP Source Current

COMP Sink Current

COMP Output Low Voltage

s PWM Comparators

VFFB Bias Current

Propagation Delay

Common Mode

Maximum Input Voltage

TEST CONDITIONS

VCOMP = VVFB

VFB = 1.275V

MIN

1.245

f = 120Hz

VCOMP = 3V, VVFB = 1.1V

0.9

VCOMP = 1.2V, VVFB = 1.45V

10

VVFB = 1.45V, ICOMP = 0.3 mA

0.50

TYP

1.275

0.1

85

1.0

80

1.3

16

0.85

MAX

1.300

1.0

2.0

24

1.00

UNIT

V

µA

dB

MHz

dB

mA

mA

V

VFFB = 0

2.0

20

µA

VFFB rising to VGATE falling

100

250

ns

2.9

3.3

V

s ENABLE Lead

ENABLE High Threshold

ENABLE Bias Current

channel 2 enabled

VENABLE = 0

s Gate Driver Outputs

Output Low Saturation Voltage

Output High Saturation Voltage

Output Voltage under Lockout

Output Rise Time

Output Fall Time

IGATE = 20 mA

IGATE = 100 mA

IGATE = 20 mA

IGATE = 100 mA

VIN = 6V, IGATE = 1 mA

no load

no load

1.5

2.5

3.5

V

100

250

400

µA

0.1

0.4

V

0.25

2.50

V

1.5

2.0

V

1.6

3.0

V

0.1

0.2

V

30

ns

10

ns

s Undervoltage Lockout

Turn On Threshold

Turn Off Threshold

7.4

8.4

9.4

V

6.8

7.8

8.8

V

s Supply Current

Start Up Current

Operating Current

VIN = 6V

VCT = 0V, no load

0.4

0.8

mA

17.5

25

mA

3

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