ST662AB_08 STMICROELECTRONICS [STMicroelectronics], ST662AB_08 Datasheet

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ST662AB_08

Manufacturer Part Number
ST662AB_08
Description
DC-DC converter from 5 V to 12 V, 0.03 A for Flash memory programming supply
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
Features
Description
The ST662A is a regulated charge pump DC-DC
converter. It provides 12 V ± 5 % output voltage to
program byte-wide Flash memory, and can supply
30 mA output current from input as low as 4.75 V.
A logic controlled shut down pin that interfaces
directly with microprocessor reduces the supply
current to only 1 µA.
The ST662AB is available as Automotive Grade in
SO-8 package, whose commercial Part Number is
shown in the
device is qualified according to the specification
AEC-Q100 of the Automotive market, in the
temperature range -40 °C to 125 °C, and the
statistical tests PAT, SYL, SBL are performed.
Table 1.
1. Automotive Grade products.
February 2008
Output voltage: 12 V ± 5 %
Supply voltage range: 4.5 V to 5.5 V
Guaranteed output current up to 30 mA
Very low quiescent current: 100 mA
Logic controlled electronic shutdown: 1 µA
Just capacitors needed (no inductor)
Device summary
Table 1
Part numbers
(device summary). This
ST662AB
ST662AB
ST662AC
DC-DC converter from 5 V to 12 V, 0.03 A
for Flash memory programming supply
Rev 7
SO-8 (tape and reel)
ST662ABD-TRY
ST662ACD-TR
ST662ABD-TR
Order codes
SO-8
ST662AB
(1)
ST662AC
www.st.com
1/19
19

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ST662AB_08 Summary of contents

Page 1

Features ■ Output voltage ± ■ Supply voltage range: 4 5.5 V ■ Guaranteed output current ■ Very low quiescent current: 100 mA ■ Logic controlled electronic shutdown: 1 µA ...

Page 2

Contents 1 Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 3

Application circuit Figure 1. Typical application circuit 3/19 ...

Page 4

Pin configuration Figure 2. Pin connections (top view) Table 2. Pin description Pin n° Symbol 1 C1- Negative terminal for the first charge pump capacitor 2 C1+ Positive terminal for the first charge pump capacitor 3 C2- Negative terminal ...

Page 5

Maximum ratings Table 3. Absolute maximum ratings Symbol V DC input voltage to GND CC SHDN Shutdown voltage I Output current continuous O P Power dissipation D T Operating ambient temperature range OP T Storage temperature range STG Note: ...

Page 6

Electrical characteristics Table 5. Electrical characteristics (Refer to the test circuits unless otherwise specified. Typical value are referred at T MAX Symbol Parameter V Output voltage O I Quiescent current Q1 I Shutdown current Q2 I ...

Page 7

Typical performance characteristics Figure 3. Output voltage vs temperature Figure 5. Supply current vs temperature Figure 7. SHDN pin current vs temperature Figure 4. Output voltage vs temperature Figure 6. Supply current vs supply voltage Figure 8. Output voltage ...

Page 8

Figure 9. Output voltage vs shutdown input voltage Figure 11. Test circuit 8/19 Figure 10. Output voltage vs shutdown input voltage ...

Page 9

Description The ST662 developed to provide regulated output 30 mA from voltage input as low as 4.75 without any inductors useful for a wide range of applications and its performances makes ...

Page 10

Figure 13. Exiting shutdown 200 µA CC OUT 10/19 Figure 14. Entering shutdown 200 µA CC OUT ...

Page 11

Application circuit Based on fast charge/discharge of capacitors, this circuit involves high di/dt values limited only switches. This implies a critical layout design due to the need to minimize ON inductive paths and place capacitors as ...

Page 12

Table 7. List of component Capacitor Charge pump C1 Charge pump C1 Input C3 Output C4 Decoupling C5 7.1 ST662A output performance Figure 17. Output voltage vs output current Figure 19. Load transient response ...

Page 13

How to increase output current or output voltage capability Current capability is limited by R connecting in parallel two or more ST662A devices; each one of them can supply 30 mA. The Figure 19 shows the electric schematic. The ...

Page 14

Figure 22. Application circuit for output voltage greater than 12 V Figure 23. Output voltage for the application with two device in parallel 14/19 Figure 24. Output voltage for application with output voltage greater than 12 V ...

Page 15

Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner ...

Page 16

Dim. Min. A 1.35 A1 0.10 A2 1.10 B 0.33 C 0.19 D 4. 5.80 h 0.25 L 0.40 k ddd 16/19 SO-8 mechanical data mm. Typ. Max. 1.75 0.25 1.65 0.51 0.25 5.00 4.00 1.27 ...

Page 17

Tape & reel SO-8 mechanical data mm. Dim. Min. Typ 12 8.1 Bo 5.5 Ko 2.1 Po 3.9 P 7.9 inch. Max. Min. Typ. 330 13.2 0.504 0.795 2.362 22.4 8.5 0.319 ...

Page 18

Revision history Table 9. Document revision history Date Revision 16-Jul-2007 5 07-Feb-2008 6 19-Feb-2008 7 18/19 Changes Device summary updated. Modified: Table 1 on page 1. Add new order code for Automotive grade products see Table 1 on page ...

Page 19

Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any ...

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