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STM6600CS25DM6F-STM6601AQ2BDM6F-STM6601AU2DDM6F
Smart push-button on/off controller with smart reset and power-on lockout
October 2014 DocID15453 Rev 12 1/52
STM6600, STM6601Smart push-button on/off controller with Smart Reset™ and
power-on lockout
Datasheet - production data
Features Operating voltage 1.6 V to 5.5 V Low standby current of 0.6 µA Adjustable Smart Reset™ assertion delay time
driven by external CSRD Power-up duration determined primarily by
push-button press (STM6600) or by fixed time
period, t ON_BLANK (STM6601) Debounced PB and SR inputs PB and SR ESD inputs withstand voltage up to
±15 kV (air discharge) ±8 kV (contact
discharge) Active high or active low enable output option
(EN or EN) provides control of MOSFET,
DC-DC converter, regulator, etc. Secure startup, interrupt, Smart Reset™ or
power-down driven by push-button Precise 1.5 V voltage reference with 1%
accuracy Industrial operating temperature –40 to +85 °C Available in TDFN12 2 x 3 mm package
Applications Portable devices Terminals Audio and video players Cell phones and smart phones PDAs, palmtops, organizers
Table 1. Device summary External pull-up resistor needs to be connected to open drain outputs. For a successful startup, the PSHOLD (power supply hold) needs to be pulled high within specific time, tON_BLANK.
Contents STM6600, STM66012/52 DocID15453 Rev 12
Contents Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Typical operating characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 DC and AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Product selector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
DocID15453 Rev 12 3/52
STM6600, STM6601 List of tables
List of tablesTable 1. Device summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 3. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 4. Operating and AC measurement conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Table 5. DC and AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Table 6. TDFN12 (2 x 3 mm) package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Table 7. Carrier tape dimensions for TDFN12 (2 x 3 mm) package. . . . . . . . . . . . . . . . . . . . . . . . . 45
Table 8. STM6600 ordering information scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Table 9. STM6601 ordering information scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Table 10. STM6600 product selector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Table 11. STM6601 product selector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Table 12. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
List of figures STM6600, STM66014/52 DocID15453 Rev 12
List of figuresFigure 1. Application hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. Basic functionality (option with enable deassertion after long push) . . . . . . . . . . . . . . . . . . 6
Figure 3. Basic functionality (option with RST assertion after long push) . . . . . . . . . . . . . . . . . . . . . . 6
Figure 4. Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 5. TDFN12 pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 6. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 7. Successful power-up on STM6600 (PB released prior to tON_BLANK expiration) . . . . . . . . 14
Figure 8. Successful power-up on STM6600 (tON_BLANK expires prior to PB release) . . . . . . . . . . . 15
Figure 9. Unsuccessful power-up on STM6600 (PB released prior to tON_BLANK) . . . . . . . . . . . . . . 16
Figure 10. Unsuccessful power-up on STM6600 (tON_BLANK expires prior to PB release) . . . . . . . . . 17
Figure 11. Successful power-up on STM6601. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 12. Unsuccessful power-up on STM6601 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Figure 13. Power-up on STM660x with voltage dropout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 14. PB interrupt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 15. Long push, PB pressed first . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 16. Long push, SR pressed first . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 17. Invalid long push . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 18. Long push (option with RST assertion). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 19. Long push (option with enable deassertion) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 20. Undervoltage detected for
Figure 21. Undervoltage detected for >tSRD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 22. PBOUT output waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 23. Supply current vs. temperature, normal state. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 24. Supply current vs. temperature, standby state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 25. Supply current vs. supply voltage, normal state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 26. Supply current vs. supply voltage, standby state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 27. Threshold vs. temperature, VTH+ = 3.4 V (typ.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 28. Threshold hysteresis vs. temperature, VHYST = 200 mV (typ.). . . . . . . . . . . . . . . . . . . . . . 30
Figure 29. Debounce period vs. supply voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 30. CSRD charging current vs. temperature, VCC = 3.6 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 31. Output low voltage vs. output low current, TA = 25 °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 32. Output high voltage vs. output high current, TA = 25 °C. . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 33. Output voltage vs. supply voltage, IOUT = 1 mA, TA = 25 °C . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 34. Input voltage vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 35. Reference output voltage vs. temperature, VCC = 2.0 V. . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 36. Reference output voltage vs. load current, VCC = 2.0 V, TA = 25 °C . . . . . . . . . . . . . . . . . 34
Figure 37. Reference output voltage vs. supply voltage, TA = 25 °C. . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 38. Reference startup, IREF = 15 µF, TA = 25 °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 39. Reference response to steps on supply voltage, IREF = 15 µA, TA = 25 °C . . . . . . . . . . . . 36
Figure 40. Reference response to steps in load current, VCC = 3.6 V, TA = 25 °C . . . . . . . . . . . . . . . 37
Figure 41. TDFN12 (2 x 3 mm) package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 42. TDFN12 (2 x 3 mm) recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Figure 43. Carrier tape for TDFN12 (2 x 3 mm) package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
DocID15453 Rev 12 5/52
STM6600, STM6601 Description
1 Description
The STM6600-01 devices monitor the state of connected push-button(s) as well as
sufficient supply voltage. An enable output controls power for the application through the
MOSFET transistor, DC-DC converter, regulator, etc. If the supply voltage is above a
precise voltage threshold, the enable output can be asserted by a simple press of the
button. Factory-selectable supply voltage thresholds are determined by highly accurate and
temperature-compensated references. An interrupt is asserted by pressing the push-button
during normal operation and can be used to request a system power-down. The interrupt is
also asserted if undervoltage is detected. By a long push of one button (PB) or two buttons
(PB and SR) either a reset is asserted or power for the application is disabled depending on
the option used.
The device also offers additional features such as precise 1.5 V voltage reference with very
tight accuracy of 1%, separate output indicating undervoltage detection and separate output
for distinguishing between interrupt by push-button or undervoltage.
The device consumes very low current of 6 µA during normal operation and only 0.6 µA
current during standby.
The STM6600-01 is available in the TDFN12 package and is offered in several options
among features such as selectable threshold, hysteresis, timeouts, output types, etc.
Figure 1. Application hookup A resistor is required for open drain output type only. A 10 kΩ pull-up is sufficient in most applications. Capacitor CREF is mandatory on VREF output (even if VREF is not used). Capacitor value of 1 µF is recommended. For the STM6601 the processor has to confirm the proper power-on during the fixed time period, tON_BLANK. This failsafe feature prevents the user from turning on the system when there is a faulty power switch or an unresponsive microprocessor.
