CS51412 datasheet(4/20 Pages) ONSEMI

4 / 20 page

CS51411, CS51412, CS51413, CS51414

http://onsemi.com

MAXIMUM RATINGS

Pin Name

VMax

VMIN

ISOURCE

ISINK

VIN

40 V

−0.3 V

N/A

4.0 A

BOOST

40 V

−0.3 V

N/A

100 mA

VSW

40 V

−0.6 V/−1.0 V, t < 50 ns

4.0 A

10 mA

7.0 V

−0.3 V

1.0 mA

SHDNB

7.0 V

−0.3 V

1.0 mA

SYNC

7.0 V

−0.3 V

1.0 mA

BIAS

7.0 V

−0.3 V

1.0 mA

50 mA

VFB

7.0 V

−0.3 V

1.0 mA

GND

7.0 V

−0.3 V

50 mA

1.0 mA

ELECTRICAL CHARACTERISTICS (−40

°C < TJ < 125°C (CS51411E/2E/3E/4E); −40°C < TA < 85°C (CS51411E/2E/3E/4E);

°C < TA < 70°C (CS51411G/2G/3G/4G), 4.5 V< VIN < 40 V; unless otherwise specified.)

Characteristic

Test Conditions

Min

Typ

Max

Unit

Oscillator

Operating Frequency

CS51411/CS51412

224

260

296

kHz

Operating Frequency

CS51413/CS51414

446

520

594

kHz

Frequency Line Regulation

−

0.05

0.15

%/V

Maximum Duty Cycle

−

VFB Frequency Foldback Threshold

−

0.29

0.32

0.36

PWM Comparator

Slope Compensation Voltage

CS51411/CS51412, Fix VFB, DVC/DTON

CS51413/CS51414

8.0

mV/

Minimum Output Pulse Width

CS51411/CS51412, VFB to VSW

CS51413/CS51414, VFB to VSW

−

150

−

300

230

Power Switch

Current Limit

VFB > 0.36 V

1.6

2.3

3.0

Foldback Current

VFB < 0.29 V

0.9

1.5

2.1

Saturation Voltage

IOUT = 1.5 A, VBOOST = VIN + 2.5 V

0.4

0.7

1.0

Current Limit Delay

(Note 2)

−

120

160

Error Amplifier

Internal Reference Voltage

−

1.244

1.270

1.296

Reference PSRR

(Note 2)

−

FB Input Bias Current

−

0.02

0.1

Output Source Current

VC = 1.270 V, VFB = 1.0 V

Output Sink Current

VC = 1.270 V, VFB = 2.0 V

Output High Voltage

VFB = 1.0 V

1.39

1.46

1.53

Output Low Voltage

VFB = 2.0 V

5.0

Unity Gain Bandwidth

(Note 2)

−

500

−

kHz

Open Loop Amplifier Gain

(Note 2)

−

Amplifier Transconductance

(Note 2)

−

6.4

−

mA/V

2. Guaranteed by design, not 100% tested in production.

CS51412 Datasheet(PDF) 4 Page - ON Semiconductor

CS51412 Datasheet(HTML) 4 Page - ON Semiconductor

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Datasheet Download

Link URL