SX8122ISTRT Semtech, SX8122ISTRT Datasheet
SX8122ISTRT
Specifications of SX8122ISTRT
Related parts for SX8122ISTRT
SX8122ISTRT Summary of contents
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... LEDS) NiMH cell charger control (allows USB recharge) Applications Toys - LED animation LED pointer USB rechargeable 555 timer applications Ordering Information Part number SX8122ISTRT - Available in tape and reel only - WEEE/RoHS compliant- Pb-Free and Halogen Free. TRIGGER DISCHARGE CHARGE VDD 1.41 V Burst ...
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... ECHANICAL PECIFICATION 8 Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 8.1 SOIC 8.1.1 Outline drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 8.1.2 Land pattern 8.1.3 Marking information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 ACS - Revision 2.2 August 2010 © Semtech Corp Page 2 SX8122 1V Motor/LED timer DATASHEET Page www.semtech.com/products/ ...
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... Charged devices and circuit boards can discharge without detection. Athough this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD. Therfore, proper ESD precaution should be taken to avoid performance degradation or loss of functionality. ACS - Revision 2.2 August 2010 © Semtech Corp. Symbol Min V -0.3 AMRVDD V VSS - 0 ...
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... Table 3. Circuit electrical specification Parameter Safe mode low limit POR voltage Switch ON level Switch OFF level VDD OFF V POR V SAFE Mode : ACS - Revision 2.2 August 2010 © Semtech Corp. Symbol V DDOC V DDSPEC T OC Symbol V SAFE Threshold V POR Hysteresis V PORHYST 70°C ...
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... Max Sink Current at max VOL Input capacitance Table 6. General specifications Parameter Startup time at power-on Threshold voltage high on TRIGGER Threshold voltage low on TRIGGER NIMH pin switch voltage ACS - Revision 2.2 August 2010 © Semtech Corp. Symbol VDD=1.2V I CHARGE VDD=2.0V VDD=1.2V I DISCHARGE VDD=2.0V VDD=1.2V ...
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... MOTOR Digital output 8 VDD Power – positive DISCHARGE ACS - Revision 2.2 August 2010 © Semtech Corp. Pin function Signal used to trigger the device Used to discharge the capacitive load via a resistor Used to charge the capacitive load via a resistor Checks the battery status ...
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... TRIGGER is above 2/3 of VDD, the comparator sets its output to high; when the TRIGGER is below 1/3 of VDD, the comparator sets its output to low. As long as the TRIGGER voltage is between 1/3 VDD and 2/3 VDD, the comparator output remains unchanged. ACS - Revision 2.2 August 2010 © Semtech Corp. 2/3 VDD R Q TRIGGER ...
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... A 30mV hysteresis allow to remove NiMH pin oscillation when the VDD voltage is near the threshold. The supply voltage on VDD pin is checked at a 1Hz rate, so the NiMH pin can switch with a delay of 1 seconds max. ACS - Revision 2.2 August 2010 © Semtech Corp. Page 8 SX8122 1V Motor/LED timer DATASHEET ...
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... The chip reacts to the TRIGGER pin voltage. See Force charge Continue charge Force discharge Continue discharge NIMH pin is set according to VDD voltage. See ACS - Revision 2.2 August 2010 © Semtech Corp. Hysteresis LOW ACTIVE or SLEEP BATT Figure 3. Operating modes vs battery voltage 4.3. Active 4.4. NiMH pin ...
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... DISCHARGE, one builds an oscillator which ramp-down is controlled by Rtdown*C and ramp-up by Rtup*C. Rtdown Ct Figure 4. Oscillator controlled by two resistors - schematics Figure 5. Oscillator controlled by two resistors - waveform ACS - Revision 2.2 August 2010 © Semtech Corp. SX8122 TRIGGER DISCHARGE Rtup CHARGE NIMH TRIGGER VDD ...
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... The same schematics without the reistor between TRIGGER and DISCHARGE will make a single shot timer controlled by Rtup*C. Ct Figure 6. Oscillator controlled by two resistors - schematics Figure 7. Oscillator controlled by two resistors - waveform ACS - Revision 2.2 August 2010 © Semtech Corp. SX8122 TRIGGER DISCHARGE Rtup CHARGE NIMH ...
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... It can either indicate it with a LED continuously on (simpler schematics, but is drains more current), or with a blinking LED. Figure 8. LED is continuously on when the supply voltage is below NiMH threshold Figure 9. LED is blinking on when the supply voltage is below NiMH threshold ACS - Revision 2.2 August 2010 © Semtech Corp. SX8122 TRIGGER VDD DISCHARGE MOTOR ...
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... SEATING PLANE C SIDE VIEW NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. DATUMS -A- AND 3. DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. 4. REFERENCE JEDEC STD MS-012, VARIATION AA. ACS - Revision 2.2 August 2010 © Semtech Corp e bxN bbb C A-B D GAGE ...
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... X (C) P NOTES: 1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. 2. REFERENCE IPC-SM-782A, RLP NO. 300A. ACS - Revision 2.2 August 2010 © Semtech Corp. DIMENSIONS DIM INCHES (.205 .118 .050 X ...
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... ADVANCED COMMUNICATIONS & SENSING 8.1.3 Marking information &&'' " ACS - Revision 2.2 August 2010 © Semtech Corp. "##$ &&'' ! "##$% ! ()(*% + Page 15 SX8122 1V Motor/LED timer DATASHEET ! ,)()% www.semtech.com/products/ ...
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... No. 89 Sec. 5, Nanking E. Road, Taipei, 105, TWN, R.O.C. FAR EAST Tel: +886 2 2748 3380 Fax: +886 2 2748 3390 Semtech Ltd., Units 2 & 3, Park Court, Premier Way, Abbey Park Industrial Estate, Romsey, Hampshire, SO51 9DN. EUROPE Tel: +44 (0)1794 527 600 Fax: +44 (0)1794 527 601 ACS - Revision 2 ...