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AS2916

PWM Controller

Electrical Characteristics

Electrical characteristics are guaranteed over the full junction temperature range (0-105°). Ambient temperature must be derated

based upon power dissipation and package thermal characteristics. The conditions are: VCC = 15 V, BOK = 3 V, ON = 3 V, RT =

680

Ω, CT = 10 nF, and CWBL = 2.2 nF, unless otherwise specified. To override UVLO, VCC should be raised above UVLOHIGH

prior to test.

Parameter

Symbol

Test Condition

Min.

Typ.

Max.

Unit

5 V Regulator

Output Voltage

VREG

TJ = 25°C, IREG = 1 mA

4.90

5.00

5.10

V

Line Regulation

PSRR

12

≤ VCC ≤ 18 V

5

15

mV

Load Regulation

1.0

≤ IREG ≤ 20 mA

5

15

mV

Temperature Stability

TCREG

0.2

0.4

mV/°C

Total Output Variation

Line, Load, Temperature

4.85

5.15

V

Long-Term Stability

Over 1,000 hrs at 25°C

5.0

25

mV

Output Noise Voltage

VNOISE

10

≤ f ≤ 100 kHz, TJ = 25°C

50

µV

Maximum Source Current

IMAX

VREG = 4.8 V

30

120

180

mA

Oscillator

Initial Frequency

fOSC

TA = 25°C, VWBL = 0 V

117

132

143

kHz

Voltage Stability

8.5 V

≤ VCC ≤ 18V

0.2

1.0

%

Temperature Stability

TCF

TMIN ≤ TJ ≤ TMAX

5%

Amplitude

VOSC

VOSC peak-to-peak

1.55

V

Upper Trip Point

VH

VWBL = 0 V

2.8

V

Lower Trip Point

VL

VWBL = 0 V

1.25

V

Discharge Current

IDSC

VOSC = 3 V

7.5

8.7

9.5

mA

Duty Cycle Limit

RT = 680 Ω, CT = 10 nF,

46

50

54

%

TJ = 25°C

Over-Temperature Shutdown

TOT

140

°C

Wobble Oscillator

Wobble Rate

FWBL

2.2 nF WBL to GND

3.4

4.5

6.0

kHz

OSC Frequency Deviation

DEV

Change in main oscillator freq.

+30

+40

+50

kHz

Amplitude

VWBL

VWBL peak-to-peak

1.8

V

Upper Trip Point

VH

2.7

V

Lower Trip Point

VL

0.9

V

Charge Current

ICHRG

VWBL = 0.7 V

–25

–36

–50

µA

Discharge Current

IDSC

VWBL = 4.8 V

25

36

50

µA