TDA1180 datasheet(5/12 Pages) STMICROELECTRONICS

5 / 12 page

ELECTRICAL CHARACTERISTICS (continued)

(refer to the test circuit, VS = 12V, TA = 25

oC, unless otherwise specified)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

OSCILLATOR

V14

Low Level Threshold Voltage

5.4

V14

High Level Threshold Voltage

8.2

I14

Charge Current

0.6

I14

Discharge Current

0.3

V15

Current Source Supply Voltage

I15

Current Source Supply Current

0.3

Free Running Frequency

15625

∆fO

Adjustment Range

± 10

∆fO

∆I15

Frequency Control Sensitivity

µA

∆fO

Frequency Change when VS Drops to 4V

± 10

OSCILLATOR-FLYBACK PULSE PHASE COMPARATOR

Control Voltage Range

9.4 to 8.2

Peak Control Current

-0.6

+0.6

Input Current (blocked Phase Detector)

µA

Permissible Delay between Output Pulse Leading

Edge and Flyback Pulse Leading Edge

tp - tf

µs

∆t

∆tD

Static Control Error

0.2

SYNC PULSE-OSCILLATOR PHASE COMPARATOR

V13

Control Voltage Range

4.6

1.4

I13

Control Peak Current

-2.2

-2

∆f

∆t

Phase Lock Loop Gain

kHz

µs

Catching and Holding Range

700

OVERALL PHASE RELATIONSHIP

Phase Relation between Middle of Flyback Pulse

and Middle of Sync. Pulse

2.2

µs

∆V5

∆tO

Adjustment Sensitivity

µs

∆I5

∆tO

Adjustment Sensitivity

µA

µs

TDA1180P

5/12

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