CS52843 datasheet(4/9 Pages) ONSEMI

4 / 9 page

CS52843

http://onsemi.com

ELECTRICAL CHARACTERISTICS (continued) (−40°C ≤ TA ≤ 85°C; VCC = 15 V (Note 2.); RT = 680 Ω; CT = 0.022 μF for triangle

mode, RT = 10 kΩ; CT = 3.3 nF sawtooth mode; unless otherwise specified.)

Parameter

Unit

Max

Typ

Min

Test Conditions

Output Section

Output Low Level

ISINK = 20 mA

ISINK = 200 mA

−

0.1

1.5

0.4

2.2

Output High Level

ISOURCE = 20 mA

ISOURCE = 200 mA

13.5

−

Rise Time

TJ = 25°C, CL = 1.0 nF, Note 5.

−

150

Fall Time

TJ = 25°C, CL = 1.0 nF, Note 5.

−

150

Output Leakage

UVLO Active VOUT = 0

−

−0.01

−10

μA

Total Standby Current

Start−Up Current

−

300

500

μA

Operating Supply Current

VFB = VSENSE = 0 V, RT = 10 kΩ; CT = 3.3 nF

−

VCC Zener Voltage

ICC = 25 mA

−

Undervoltage Lockout Section

Start Threshold

−

7.8

8.4

9.0

Min. Operating Voltage

After Turn On

7.0

7.6

8.2

5. These parameters, although guaranteed, are not 100% tested in production.

PACKAGE PIN DESCRIPTION

Package Lead Number

Lead Symbol

Function

SO−8SO−14

COMP

Error amp output, used to compensate error amplifier.

VFB

Error amp inverting input.

SENSE

Noninverting input to Current Sense Comparator.

OSC

Oscillator timing network with capacitor to ground, resistor to

VREF.

GND

Ground.

−

Pwr GND

Output driver ground.

VOUT

Output drive pin.

−

VCCPwr

Output driver positive supply.

VCC

Positive power suppy.

VREF

Output of 5.0 V internal reference.

−

2, 4, 6, 13

No Connection.

CS52843 数据表(PDF) 4 Page - ON Semiconductor

CS52843 数据表(HTML) 4 Page - ON Semiconductor

Html Pages

1 2 3 4 5 6 7 8 9

数据表下载