OZ9910 Ver la hoja de datos (PDF) - O2Micro International

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OZ9910

Dual Forward PWM Controller

O2Micro International 

OZ9910

Change Summary

CHANGES

No.

Applicable Section

1. General Description

2 Pin Description

3

Recommended Operating

Range

4 Electrical Characteristics

5 Functional Information

6 Throughout data sheet

Description

Change “74uA” to “80uA” in last sentence of last paragraph

Modify Pin 5, 6, 7, 8, 9, 11 pin descriptions

a. Change “VIN” range, b. Add “Analog Dimming” range, c.

update “Thermal Impedance”.

a. Update general test conditions, b. Update “Normal

operating frequency” test conditions, Min, Typ & Max limits,

c. Update “Striking frequency” test conditions, Min, Typ &

Max limits, d. Delete “Ramp peak”, “Ramp Valley” & “Temp

stability”, e. Update “Operating frequency” test conditions,

Min, Typ & Max limits, f. Update “Ramp peak” Min, Typ &

Max limits, g. Update “Ramp valley” Min, Typ & Max limits,

h. Delete “Analog dimming range”, i. Update “ISEN

reference voltage” Min & Max limits, j. Update “VSEN

reference voltage” Min & Max limits, k. Update “Standby

current” test conditions, Typ & Max limits, l. Update

“Operation current” Max limit, m. Update “REF voltage”

Min, Typ & Max limits, n. Update “HSB voltage” Min, Typ &

Max limits, o. Update “NDR-PDR output” Max limits, p.

Delete “Min. Overlap between diagonal switches”, q.

Update “Max. Overlap between diagonal switches” Min &

Typ limits, r. Update “Brake before make” Min, Typ & Max

limits, s. Update “Timer” Min, Typ & Max limits

Update formula in No. 4. Ignition

Miscellaneous corrections.

Page(s)

1

3

3

4-5

8

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REVISION HISTORY

Revision No.

0.97

0.96

0.95

Description of change

1. Ordering information: Add GN, SN, IS, ISN, D & DN packages; 2. Electrical

Characteristics: b. Change High Frequency Oscillator, Normal Operating Frequency Typ

value fm 56 to 62; c. Change High Frequency Oscillator, Ramp Valley Typ value fm 7 to 100;

d. Change Low Frequency Oscillator, ‘Operating Frequency’ Typ value fm 200 to 187; e.

Change Low Frequency Oscillator, Ramp Valley fm 84.9 to 110; f. Add ‘Analog Dimming

Range’ parameter; g. Add ‘ISEN Reference Voltage’ & ‘VSEN Reference Voltage’ symbols;

h. Change Supply, HSB voltage Typ value fm 7 to Vin-5; i. Change Max./Min. Overlap, Max

Overlap between diagonal switches Typ value fm 94.5 to 95; j. Change Threshold, Vin

Under Voltage Lock Out Threshold Min. Value fm 5.8 to 5.95, Max fm 5.4 to 4.95; k. Change

Timer, Over Voltage Protection Timer Typ value fm 50 to 15; 3. Others.

1. Ordering Information: Add OZ9910S 16 pin-SSOP package; 2. Recommended Operating

Range: Add OZ9910S 16 pin-SSOP thermal impedance; 3. Electrical Characteristics: a)

Add general test conditions before “High Frequency Oscillator” ;b) Normal operating

frequency: delete test conditions; correct Typ limit to 56; c) Striking frequency: delete test

conditions; correct Typ limit to 72; d) Operating frequency: delete test conditions; e) Supply

current: correct test conditions; f) REF voltage: add Symbol; correct test conditions; g) Min.

overlap between diagonal switches & Max. overlap between diagonal switches: correct test

conditions; h) PDRV3/ NDRV2 & PDRV1/ NDRV4: correct test conditions i) Over time

protection timer: correct test conditions; 4. Function Information: a) Section 4 Ignition:

correct striking frequency equation denominator from Clct[pF] to Cct[pF} & Rrt to Rct

;b) Section 5 Normal Operation: correct fop equation numerator frm 18.7 to 9.35; c) Section

6 Proection: correct 2nd paragraph to read “If the lamp fails to ignite after approximately 1.5

seconds, the IC will shut down.”; 5. Package Information: Add OZ9910S 16 pin-SSOP

package drawings

Initial release

Release Date

10/14/2004

7/26/2004

6/15/2004

12/09/04

Copyright  2004 by O2Micro

OZ9910-DS-1.0

All Rights Reserved

Page 0

CONFIDENTIAL

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