E-L6902D STMicroelectronics, E-L6902D Datasheet
E-L6902D
Specifications of E-L6902D
Available stocks
Related parts for E-L6902D
E-L6902D Summary of contents
Page 1
... The internal fixed switching frequency of 250KHz, and the SO-8 package pin allow to built an ultra compact DC/ DC converter with a minimum board space. Table 1. Device summary ...
Page 2
... Content Content 1 Test and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 Internal block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 6 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2/11 Doc ID 7332 Rev 9 L6902 ...
Page 3
... Current error amplifier input (current sense at lower voltage) 4 COMP E/A output to be used for frequency compensation Stepdown feedback input. Connecting directly to this pin results in an output voltage of 1.235 V. An external resistive divider is required for higher output voltages. In this case VREF 3.3 V VREF. No cap is need for stability. ...
Page 4
... Maximum ratings 3 Maximum ratings Table 3. Absolute maximum ratings Symbol V Input voltage 8 Output DC voltage output peak voltage 0.1 μ Maximum output current Analog pins Analog pins Power dissipation at T tot T Operating junction temperature range j T Storage temperature range stg Table 4. Thermal data ...
Page 5
... L6902 4 Internal block diagram Figure 3. Block diagram Doc ID 7332 Rev 9 Internal block diagram 5/11 ...
Page 6
... CS- output current CS- 6/11 Test condition = 1.235V 8V 0.1Ω sense 36V CC 8V < V < 36V, 20mA < I < 5V 12V O CC Duty cycle = 0; VFB = 1. 1.5 FB Vcomp = 1.9V; VFB = 1V Vcomp = 1.9V; VFB = 1. -0.1 to 0.1mA 1.9V comp comp V = 1.8V Vcomp CS 100mΩ, O sense V < V -2V ...
Page 7
... Electrical characteristics (continued) Symbol Parameter Reference section Reference voltage Line regulation Load regulation Short circuit current 1. Specification Referred to TJ from -40 to 125°C. Specification over the -40 to +125 TJ Temperature range are assured by design, characterization and statistical correlation Test condition 5mA 36V REF CC ...
Page 8
... Table 1. SO-8 mechanical data Dim ( ddd 1. Dimensions D does not include mold flash, protrusions or gate burrs. Mold flash, potrusions or gate burrs shall not exceed 0.15mm (.006inch) in total (both side). 8/11 mm. Min Typ Max 1.35 1.75 0.10 0.25 1.10 1.65 0.33 0.51 0.19 ...
Page 9
... L6902 Figure 4. Package dimensions Doc ID 7332 Rev 9 Package mechanical data 9/11 ...
Page 10
... Revision history 7 Revision history Table 6. Document revision history Date January 2004 October 2004 26-Nov-2010 10/11 Revision 7 Technical migration from ST-PRESS to EDOCS. 8 Changed style look and feel. 9 Updated Note 1 on page 7 Doc ID 7332 Rev 9 L6902 Changes ...
Page 11
... The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners. Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America Please Read Carefully: © ...