OZ9939 Просмотр технического описания (PDF) - O2Micro International
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OZ9939 Datasheet PDF : 12 Pages
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CHANGES
No.
Applicable Section
1. Electrical Characteristics
OZ9939
Change Summary
Description
Updated limits for Protection Release Threshold
Page(s)
3
REVISION HISTORY
Revision No.
0.6
0.65
1.0
Description of change
Initial release
1. Electrical Characteristics: a. Modify general test conditions in line 1; b.
Modify ‘Driver Frequency – Striking & Normal Operation’ Typ limit; c.
Modify ‘PWM Dimming Control – LCT frequency’, 2. Reference
Application Circuit: Modify C14, C9 & R9 values
Ordering Information: Add OZ9939G, IG, D & DN. Recommended
Operating Range: 1. Add ‘Dimming Range’; 2. Fill in ‘Thermal Impedance’.
Electrical Characteristics: 1. Update ‘Supply Current’ limits; 2. Update ‘Soft
Start’ limits; 3. Update ‘Under Voltage Lockout’ limits; 4. Update ‘Reference
Voltage’ limits; 5. Update ‘Driver Frequency’ limits; 6. Update ‘Timer &
Protection’ limits; 6. Update ‘Drivers’ parameter name & limits; 7. Update
‘PWM Dimming Control’ limits; 8. Delete ‘Analog Dimming Control’.
Function Description: Update formula in NO. 4 Ignition, No. 6 Normal
Operation & No. 9 Dimming Control. Package Information: Add DIP
package drawing. Throughout datasheet: Miscellaneous changes.
Release Date
5/12/2005
6/27/2005
9/21/2005
10/27/2005
OZ9939-DS-1.1
Copyright © 2005 by O2Micro
All Rights Reserved
Patent#6,559,606, #6,856,519 & #6,809,93800
Page 0
CONFIDENTIAL
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