LX1663(1999) Ver la hoja de datos (PDF) - Microsemi Corporation

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LX1663
(Rev.:1999)

SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC

Microsemi Corporation 

PRODUCT DATABOOK 1996/1997

LX1662/62A, LX1663/63A

SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC

PRODUCTION DATA SHEET

ELECTRICAL CHARACTERISTICS

(Unless otherwise specified, 10.8 < VCC < 13.2, 0°C ≤ TA ≤ 70°C. Test conditions: VCC = 12V, T = 25°C. Use Application Circuit.)

Parameter

Symbol

Test Conditions

LX1662/1663 (A)

Min. Typ. Max.

Reference & DAC Section (See Table 1 - Next Page)

Regulation Accuracy (See Table 1)

Regulation Accuracy

Timing Section

(Less 40mV output adaptive positioning), VCC = 12V, ILOAD = 6A

-30

30

1.8V ≤ VOUT ≤ 2.8V

-1

1

Off Time Initial

Off Time Temp Stability

Discharging Current

Ramp Peak

Ramp Peak-Valley

Ramp Valley Delay to Output

OT VCC_CORE = 1.3V, CT = 390pF

VCC_CORE = 3.5V, CT = 390pF

VCC_CORE = 1.3V to 3.5V

IDIS

VCC_CORE = 1.3V, VCT = 1.5V

VP

VRPP

VCC_CORE = 1.3V

VCC_CORE = 3.5V

10% Overdrive

2

1

40

180 210 240

2

0.9

1

1.1

0.37 0.42 0.47

100

Error Comparator Section

Input Bias Current

Input Offset Voltage

EC Delay to Output

Current Sense Section

IB

1.3V < VSS = VINV < 3.5V

VIO

10% Overdrive

0.8

2

36

41

46

200

Input Bias Current (VCC_CORE Pin)

IB

1.3V < VINV = VCC_CORE < 3.5V

Pulse By Pulse CL

LX1662/1663

VCLP Initial Accuracy

LX1662A/1663A

Initial Accuracy

27

35

85 100 115

50

60

70

CS Delay to Output

10% Overdrive

200

Output Drivers Section

Drive Rise Time

Drive Fall Time

Drive High

Drive Low

Output Pull Down

UVLO and S.S. Section

TR VC1 = VCC = 12V, CL = 3000pF

TF VC1 = VCC = 12V, CL = 3000pF

VDH VCC = VCC = 12V, ISOURCE = 20mA

VCC = VCC = 12V, ISINK = 200mA

VDL

VCC = VCC = 12V, ISOURCE = 20mA

VCC = VCC = 12V, ISINK = 200mA

VPD

VCC = VC = 0, IPULL UP = 2mA

70

70

11

10

0.06 0.1

0.8 1.2

0.8 1.4

Start-Up Threshold

Hysteresis

SS Sink Current

SS Sat Voltage

Supply Current Section

VST

VHYST

ISD

VOL

VC1 = 10.1V

VC1 = 9V, ISD = 200µA

9.9 10.1 10.4

0.31

2

5.5

0.15 0.6

Dynamic Operating Current

ICD VCC = VC1 = 12V, Out Freq = 200kHz, CL = 0

27

Power Good / Over-Voltage Protection Section (LX1663 Only)

Lower Threshold

Hysteresis

(VCC_CORE / DACOUT)

88

90

92

1

Power Good Voltage Low

Over-Voltage Threshold

OVP Sourcing Current

IPWRGD = 5mA

(VCC_CORE / VDAC)

VOV = 5V

0.5 0.7

110 117 125

30

45

Units

mV

%

µs

µs

ppm

µA

V

V

V

ns

µA

mV

ns

µA

mV

mV

ns

ns

ns

V

V

V

V

V

V

V

mA

V

mA

%

%

V

%

mA

Copyright © 1999

Rev. 1.1 11/99

3

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