stm1068 STMicroelectronics, stm1068 Datasheet

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stm1068

Manufacturer Part Number
stm1068
Description
Smart Voltage Supervisor
Manufacturer
STMicroelectronics
Datasheet

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Part Number:
stm1068C35F38F
Manufacturer:
ST
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Features
Applications
May 2008
Operating voltage 2.7 V to 5.5 V
Supply current of 1.5 µA (typ)
Factory-trimmed voltage threshold from 3.2 V
to 3.5 V in 50 mV increments
3% voltage threshold accuracy across
temperature
Enable and inhibit inputs (EN, INH)
Power supply transient immunity
Current limited output of 15 mA (max)
Available in flip chip 8-bump package
Operating temperature –30
Portable devices
Cell phones/smart phones
PDA
Palmtops
Organizers
Portable audio/video players
Portable terminals
°
C to +85
°
C
Rev 6
Smart voltage supervisor
(8-bump)
Flip chip
STM1068
www.st.com
1/22
1

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stm1068 Summary of contents

Page 1

... Operating temperature –30 Applications ■ Portable devices ■ Cell phones/smart phones ■ PDA ■ Palmtops ■ Organizers ■ Portable audio/video players ■ Portable terminals May 2008 ° ° +85 C Rev 6 STM1068 Smart voltage supervisor Flip chip (8-bump) 1/22 www.st.com 1 ...

Page 2

Contents 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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List of tables Table 1. Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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List of figures Figure 1. Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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... Description STM1068 device monitors supply voltage V Depending on logical combination of these inputs, the output OUT is connected to V GND and the pass gate between PKX and POX is either enabled or disabled (see and Table 3 for more details). The device offers several voltage thresholds, V miniature flip chip 8-bump package. ...

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Table 1. Pin descriptions Pin Figure 2. 8-bump flip chip connections OUT 6/22 Symbol V Supply for output ...

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... LOGIC V CC USB charging and transceiver circuits V DC-DC step-up BAT converter OUT C GND 3 V BAT OUT STM1068 POX INH GND PKX Power key V IN Level OUT shifter POX 8kV ESD Protection PKX ai13960 V BOOST ASIC V CHARGER Power key C 2 ...

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... Operation The STM1068 device monitors supply voltage V According to detected states is the output OUT connected to V between PKX and POX is either enabled or disabled (see for more details). 2.1 Output, OUT If the enable input logic high state and inhibit input logic low state, the output will be connected to V output is connected to ground GND ...

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Table 3. Truth table for pass gate between PKX and POX Note: Table valid for V CC INH x H >V x >V <V L <V > 2 POX CC x follows PKX ...

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Typical operating characteristics Figure 5. Supply current vs. supply voltage, V 3.0 2.5 2.0 1.5 1.0 0.5 0.0 2.5 Figure 6. Supply current vs. temperature, V 2.5 2.0 1.5 1.0 0.5 0.0 -30 -20 10/22 3.0 3.5 4.0 4.5 ...

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Figure 7. Supply current vs. supply voltage, V 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 2.5 3.0 3.5 Figure 8. Supply current vs. temperature, V 0.65 0.60 0.55 0.50 0.45 -30 -20 -10 0 Temperature ...

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Figure 9. Rising voltage detector threshold vs. temperature 3.50 3.45 3.40 3.35 3.30 3.25 3.20 -30 Figure 10. Threshold hysteresis vs. temperature 550 500 450 400 350 300 250 -30 12/22 -20 - Temperature, T (˚C) ...

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... These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents. Table 4. ...

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DC and AC characteristics This section summarizes the operating measurement conditions and the DC and AC characteristics of the device. The parameters in the DC and AC characteristics tables that follow are derived from tests performed under the measurement ...

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Table 6. DC and AC characteristics Sym Parameter V Supply voltage CC I Supply current into Current into Rising voltage detector threshold (see V TH+ Table 8 on ...

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Table 6. DC and AC characteristics (continued) Sym Parameter Pass gate between PKX and POX R Static pass gate on resistance DS(on) 1. Valid for ambient operating temperature Guaranteed by design. 3. For V below V , the ...

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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 ...

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Table 7. Flip chip 8-bump, package mechanical data Symbol Min A 0.54 A1 0.170 0.205 A2 0.395 b 0.215 0.255 D 1.570 1.600 D1 e 0.36 E 0.77 E1 0.36 SE 0.18 f ccc $ 0.035 0.045 Figure 13. Flip ...

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... C35: 3.35V (1) C40: 3.40V (1) C45: 3.45V (1) C50: 3.50V Package F3: Flip chip, lead-free, pitch = 400µm, bump = 250µm, 8-bump Temperature range 8: –30°C to 85°C Shipping method ® ECOPACK package, tape & reel 1. Contact local ST sales office for availability. STM1068 C35 19/22 ...

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... Part number Min (–3%) STM1068C20F38F 3.104 STM1068C25F38F 3.152 STM1068C30F38F 3.201 STM1068C35F38F 3.249 STM1068C40F38F 3.298 STM1068C45F38F 3.346 STM1068C50F38F 3.395 1. Where “y” = assembly year ( and “ww” = assembly work week (01 to 52). 20/22 at ambient temperature TH+ T from –30 to +85°C A Typ Max (+3%) 3 ...

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Revision history Table 10. Document revision history Date Revision 31-Aug-2007 07-Sep-2007 03-Jan-2008 26-Mar-2008 09-Apr-2008 27-May-2008 1 Initial release. 2 Updated cover page, Section 1: Updated Figure 1, 11, 13, and 3 Typical operating characteristics; minor presentation changes. 4 Updated ...

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... 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 time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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