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PDF OZ964 Data sheet ( Hoja de datos )
| Número de pieza | OZ964 | |
| Descripción | Change Summary | |
| Fabricantes | O2Micro | |
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OZ964www.DataSheet4U.com
Change Summary
CHANGES
No. Applicable Section
1 Title
2 Ordering Information
3 General Description
4
Functional Block Diagram
Description
5
Reference Application
Circuit
6 Package information
7 Throughout data sheet
Description
Change the title to read ‘Phase-Shift PWM Controller’
Add OZ964GN, OZ964IG, OZ964IGN, OZ964D &
OZ964DN
Add 1st paragraph ‘OZ964 is a high…LCD.’
Add 1st paragraph 1st sentence ‘Specific DC/CD…’
Add DC/DC Reference Application Circuit
Correct 20 Pin SOIC 300mil drawing
Miscellaneous corrections
Page(s)
1
1
1
5
10
12
---
REVISION HISTORY
Revision No.
0.95
0.96
1.0
1.1
Description of change
Initial Release
1. Ordering information: add OZ964SN & OZ964ISN. 2. Pin
Description: modified pin description of CTIMR, DIM. 3. Electrical
Characteristics: revise a) ‘Nominal Voltage’ Typ limit, b) ‘Normal
Operating Frequency’ Typ limit, c) ‘Ramp Peak’ Typ limit, d)
‘Operating Frequency’ Typ limit, e) ‘Negative-Going Threshold
Voltage’ Max limit, f) ‘SST Current’ Typ limit, g) ‘CTIMR Current 1’
Typ limit, h) ‘Protection Release Threshold’ Typ limit, i) ‘PDR_A/
PDR_C’ Typ`limit, j) ‘Enable’ Min limit, k) ‘NDR_B/ NDR_D’ Typ limit,
l) ‘BBM Time Between PDR and NDR’ Typ limit, m) ‘Minimum
Overlap’ Typ limit. 4. Simplified Functional Block Diagram. 5. Modified
formula in No. 4 Ignition & No. 5 Normal Operation in Functional
Information. 6. Revise Application Circuit. 7. Miscellaneous
corrections.
1. Electrical Characteristics: a) Fill in Min & Max limits of all
parameters b) Correct ‘SST Protection Release Threshold’ Typ limit.
2. Application Circuit: Correct a) C10 to 6.8n, b) T1 to 28:2200. 3.
Miscellaneous corrections.
1. Footer: Add patent number 6,259,615 2. Application circuit: a.)
Delete R3, R7, R6 & R11. b) Change R9 value from 45.3k to 47K
Release Date
1/13/2004
3/19/2004
4/5/2004
7/29/2004
09/03/04
Copyright 2004 by O2Micro
OZ964-DS-1.2
All Rights Reserved
Page 0
U.S. Patent No. 6,259,615
CONFIDENTIAL
1 page  
OZ964
www.DataSheet4U.com
ELECTRICAL CHARACTERISTICS (CONTINUED)
Parameter
Symbol
Output Driver Rds(on)
PDR_A / PDR_C
NDR_B / NDR_D
Enable Thresholds
Enable
Disable
Over-Voltage Protection
Threshold Voltage
Open-Lamp Protection Threshold
Open-Lamp Threshold
Break-Before-Make (BBM)
BBM Time Between PDR and NDR
OVP
Maximum / Minimum Duty Cycle
Maximum Overlap
Minimum Overlap
Note (1)
CCT: capacitor from ”CT” (Pin 18) to ground
RRT: resistor from “RT” (Pin 17) to ground
Note (2)
CLCT: capacitor from “LCT” (Pin 15) to ground
Note (3)
Ca: capacitor from PDR_A (Pin 19) to VDDA
Cb: capacitor from NDR_B (Pin 20) to ground
Cc: capacitor from PDR_C (Pin 12) to VDDA
Cd: capacitor from NDR_D (Pin 11) to ground
Test Conditions
VDDA=5V; Tamb=25oC;
Limits
Min Typ
Sourcing=75mA
Sinking=75mA
12 25
13 25
2.3 -
--
1.95 2.00
CMP> open-lamp threshold
causes shutdown
2.54
2.70
Temp coefficient
(Tamb=25oC)
150 200
- 495
Vsst = 3.75V ;
Vcmp = 3.24V
Vsst = 0.8V ;
Vcmp = 3.5V
91 95
- 2.5
Unit
Max
35 Ω
36 Ω
-V
1.0 V
2.20 V
2.82 V
220 ns
- ppm/ oC
-%
3.9 %
CONFIDENTIAL
OZ964-DS-1.2
Page 4
5 Page 
Controlled Recipient #101461 printed on 10/25/2004. Updates will be provided to registered
OZ964recipients.
DC/DC REFERENCE APPLICATION CIRCUIT
CONFIDENTIAL
Figure 3
OZ964-DS-1.2
Page 10
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet OZ964.PDF ] | |
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