|
|
PDF OZ976 Data sheet ( Hoja de datos )
| Número de pieza | OZ976 | |
| Descripción | (OZ972 / OZ976) Intelligent CCFL Inverter Controller | |
| Fabricantes | O2Micro | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de OZ976 (archivo pdf) en la parte inferior de esta página. Total 27 Páginas | ||
|
No Preview Available !
OZ972/OZ976
Change Summary
CHANGES
No. Applicable Section
1. Ordering Information
2. OZ972 Typical Application Circuit
3. Throughout data sheet
Description
a) Add OZ972GN, OZ972IGN, OZ976TN & OZ976ITN
Change C18 value from “0.1u” to “open”
Miscellaneous corrections
Page(s)
1
16
---
REVISION HISTORY
Revision No.
0.97
0.98
0.99
1.0
Description of change
Initial release
1. Revise part number in header and footer to read “OZ972/OZ976” and ensure text diagrams and figures are in this sequence throughout data
sheet; 2. Add alpha to part numbers in “Ordering Information”; 3. Add patent number in footer of first page; 4. Update the OZ972 and OZ976
functional block diagrams, application circuit figures and functional specifications; 5. Revise "Functional Specifications" for OZ972 and OZ976 as
follows: OZ972 - a) first test condition listed, b) add note (2), c) add note (2) to Input Offset Voltage and change Max. limit, d) add note (2) to Input
Voltage Range, Open Loop Voltage Gain and Unity Gain Bandwidth under Error Amplifier, e) delete Power Supply Rejection parameter, f) add
Source and Sink Current parameters [with note (2)] under Error Amplifier, g) add note (2) to NDR-PDR Output Resistance (current source) and
change Max. limit, h) add note (2) to NDR-PDR Output Resistance (current sink) and change Typ. & Max. limits, i) change Max./Min. Overlap title
to “Maximum Overlap”, j) Maximum Overlap between Diagonal Switches Min. & Typ. limits, k) delete Gate Drive (A,B,C,D) Off Condition
parameter, l) Break-Before-Make PDR_A/NDR_B and PDR_C/NDR_D Min. & Max. limits, m) OVP test condition, Min. and Typ. limits; OZ976 - n)
Add notes (4) & (5), o) add note (4) to Reference Voltage-Nominal and change Min., Typ. & Max. limits, p) add note (5) to Reference Voltage-Line
Regulation and change Max. limit, q) add note (5) to Reference Voltage-Load Regulation and change Max. limit, r) add Source and Sink Current
parameters under Reference Voltage, s) delete CT Oscillator Initial Accuracy parameter, t) add note (5) to CT Oscillator Ramp Peak and Valley
and change Min. & Max. limits, u) CT Oscillator CLK Frequency Min., Typ. & Max limits, v) LCT Oscillator Initial Accuracy Min., Typ. & Max limits,
w) add note (5) to LCT Oscillator Ramp Peak and Valley and change Min. & Max. limits, x) Threshold ENA Min. & Max. limits, y) change Threshold
VIN title to “Threshold VINS” and change Min. & Max. limits, and z) add TALK parameter under Threshold; 6. Correct subtitle under item “15.” to
0read “VINS”; 7. Update the formulas for the operation frequency (under item “16.”) and internal LCT frequency (under item “18.”); and 8. Misc.
corrections.
51. Features & Gen’l Description--correct application lamp numbers; 2. Correct package type in part name in Ordering Information; 3. Update
0Functional Block Diagram; 4. Update OZ976 Typical Application Circuit; 5. OZ976 Pin Description--delete note ref. for pin #’s 38, 44 & 45; 6.
Complete ‘Package Power Dissipation’ value in Absolute Max. Ratings; 7. OZ972 Functional Specs a) replace ‘Input voltage range‘ parameter &
2limits with ‘Reference voltage at non-inverting input pin (internal)’ parameter & limits, b) correct ‘Max. Overlap between diagonal switches’ test
condition, c) correct Break-Before-Make ‘PDR_A/NDR_B’ test conditions, Typ & Max limits, and ‘PDR_C/NDR_D test conditions, Min & Max limits,
rd) correct ‘OVP’ Min, Typ & Max limits, e) correct ‘Supply Current’ test conditions, Typ & Max limits, f) correct ‘Supply current’ test conditions, Typ
e& Max limits, and g) ‘SST current’ Min, Typ & Max limits; 8. OZ976 Functional Specs a) add note (5) to CT Oscillator ‘Temp. stability’, and b)
correct ‘Supply Current’ test conditions; 9. Functional Description, 7, 6th line, correct voltage referenced; 10. Functional Description, 8, 1st line,
bcorrect voltage referenced; 11. Functional Description, correct voltage referenced in last line; 12. Functional Description, 18, correct Internal LCT
frequency formula; 13. Package Information, delete symbol ‘C’ in table; not included in the drawing; and 14. Misc. corrections.
m1. Add OZ972IG & OZ976IT packages and table that include temp range of each package in Ordering Information and General Description, 2.
Delete “I/O” columns in Pin Description tables, 3.Absolute Max. Ratings a) Modify table title, b) move note “(1)” from “VDDA, VDDA2, VDDD, VDD”
uto the table title, c) change “Logic Inputs” to read “Signal Inputs”, d) revise Resonator Frequency’, and e) add separate Operating Temp. table that
breaks out commercial and industrial temp ranges, 4. OZ972 Electrical Characteristics Revise a) table title, b) add temp range before the table, c)
Nfirst test condition at beginning of table, d) delete ‘Input offset voltage’ parameter, e) add test conditions and Min, Typ & Max limits for ‘Reference
lvoltage at non-inverting input pin’ and revise current Min, Typ & Max limits, f) delete ‘Open loop voltage gain’ and Unity gain bandwidth’
parameters, g) change ‘Source Current’ title to read ‘Output voltage’, add symbol and test condition, and revise Min, Typ, Max limits & units, h)
riadelete ‘Sink Current’ parameter, i) test conditions for ‘NDR-PDR Output’ parameters, adding Min, Typ, Max limits & units for new test conditions, j)
‘Break-Before-Make’ parameters Min, Typ & Max limits, k) add test condition plus Min, Typ, Max limits & unit to ‘Threshold OVP’ and update
current test conditions, Min, Typ & Max limits, and add ‘Talk’ parameter, l) ‘Supply current (ON)’ test conditions, m) ‘SST current Min, Typ & Max
elimits, and n) add ‘CTIMR current’ test conditions, adding Min, Typ, Max limits & units for new test conditions, and revising current Min, Typ & Max
limits, 5. OZ976 Electrical Characteristics Revise a) table title, b) add temp range before the table, c) first test condition at beginning of table, d)
Sadd ‘Nominal voltage’ test conditions, adding Min, Typ, Max limits & units for new test conditions, and revising current Min, Typ & Max limits, e)
‘Line regulation’ note numbers and Max limit, f) delete ‘Load regulation’, ‘Source Current’ and ‘Sink Current’, g) add test condition plus Min, Typ,
Max limits & unit to ‘CLK Frequency’ and update current test conditions, Min, Typ & Max limits, h) add test condition plus Min, Typ, Max limits &
unit to ‘Initial Accuracy’ and update current test conditions, Min, Typ & Max limits, i) delete ‘Ramp peak/valley’ parameters, j) add note (3) to ‘Low
Frequency PWM’, k) add symbol and test conditions (9) plus Min, Typ, Max limits & units to ‘Duty Cycle Range’ and update current Max limit, l)
’Threshold’ parameter names, deleting ‘ENA’ and VINS’, and all limits, m) add note (5) to ‘Talk’ parameter, n) ‘Supply current (low)’ Max lilmit, o)
‘Supply current (high)’ test condition and Max limit, and p) note (3), 6. OZ972 & OZ976 Functional Block Diagrams a) Revise ENA non-inverting
node voltage, SST current, and OVP threshold voltage, and b) delete phase shift in OZ976 diagram, 7. Functional Description a) Item 7., revise
voltage in line 6, b) Item 8., revise OVP threshold voltage in line 1, c) Item 11., revise non-inverting voltage in last line, and d) Item 18., update
formula, 8. Change C116 value to 33p in OZ976 Typical Application Circuit, 9. Add part numbers to titles of Package Information & 10. Misc.
Release
Date
10/21/02
04/23/03
05/13/03
01/27/04
OZ972/OZ976-DS-1.1
Page 0
Free Datasheet http://www.datasheetlist.com/
1 page  
OZ972/OZ976
ABSOLUTE MAXIMUM RATINGS(1)
VDDA, VDDA2, VDDD, VDD
GNDA, GNDA2, GNDD, GND
Signal Inputs
Resonator Frequency
7.0V
+/-0.3V
-0.3V to VDDA +0.3V
8MHz
Package Power Dissipation
Maximum Junction Temp.
Storage Temp.
OZ972
86 oC/W
OZ976
63 oC/W
125oC
-55oC to 150oC
RECOMMENDED OPERATING RANGE
VDDA, VDDA2, VDDD, VDD
Inverter Operating Frequency (2)
RT for Inverter Operating
Resonator Frequency Selection (3)
4.7V ~ 5.3V
30KHz to 150KHz
40kΩ to 150kΩ
3MHz to 4MHz
Operating Temp.
OZ972/OZ976
0oC to 70oC
OZ972I/OZ976I
-40oC to 85oC
50Notes:
0(1) The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The
device should not be operated at these limits. The “Functional Specifications” table defines the conditions for actual
2device operation. Exposure to absolute maximum rated conditions for extended periods may affect device reliability.
r(2) The frequency of PDR_A, NDR_B, PDR_C, and NDR_D output pulses, fABCD, are half of CT frequency value.
Serial Numbe(3) See Table 2, page 16 for more detail.
Free Datasheet http://www.datasheetlist.com/
5 Page 
OZ972/OZ976
OZ972 POWER CONTROLLER FUNCTIONAL BLOCK DIAGRAM
VDD
REF
REFERENCE
BBM
NDR_B
PDR_A
CT
CLK
ZVS
PHASE-SHIFT
CONTROL
BBM
NDR_D
PDR_C
TALK
r 2050ENA
Serial NumbeCTIMR
CONTROL
LOGIC
5 uA
PROTECTION
ADJUST
CONTROL
1.28 V
+
- EA
GND
CMP
FB
+ 2.22 V
SST - OVP
Figure 2
Free Datasheet http://www.datasheetlist.com/
11 Page | ||
| Páginas | Total 27 Páginas | |
| PDF Descargar | [ Datasheet OZ976.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| OZ972 | (OZ972 / OZ976) Intelligent CCFL Inverter Controller | O2Micro |
| OZ976 | (OZ972 / OZ976) Intelligent CCFL Inverter Controller | O2Micro |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |