Document
TC4626/TC4627
Power CMOS Drivers With Voltage Tripler
Features
• • • • • • Power Driver With On Board Voltage Booster Low IDD – <4mA Small Package – 8-Pin PDIP Under-Voltage Circuitry Fast Rise-Fall Time – <40nsec @1000pF Below-Rail Input Protection
Package Type
8-Pin PDIP/CERDIP
C1– C1+ C2 GND 1 2 3 4 8 VDD
TC4626 TC4627
7 IN 6 VBOOST 5 OUT
Applications
• Raises 5V to drive higher – Vgs (ON) MOSFETs • Eliminates one system power supply
16-Pin SOIC (Wide)
C1– NC C1+ NC 1 2 3 4 5 6 7 8 16 VDD 15 NC 14 NC
Device Selection Table
Part Number
TC4626COE TC4626CPA TC4626EOE TC4626EPA TC4626MJA TC4627COE TC4627CPA TC4627EOE TC4627EPA TC4627MJA
C2 NC
TC4626 TC4627 12 NC
11 VBOOST 10 NC 9 OUT
13 IN
Package
16-Pin SOIC (Wide) 8-Pin PDIP 16-Pin SOIC (Wide) 8-Pin PDIP 8-Pin CERDIP 16-Pin SOIC (Wide) 8-Pin PDIP 16-Pin SOIC (Wide) 8-Pin PDIP 8-Pin CERDIP
Temp. Range
-55°C to +125°C -40°C to +85°C -40°C to +85°C 0°C to +70°C 0°C to +70°C -55°C to +125°C -40°C to +85°C -40°C to +85°C 0°C to +70°C 0°C to +70°C
NC GND
General Description
The TC4626/TC4627 are single CMOS high speed drivers with an on-board voltage boost circuit. These parts work with an input supply voltage from 4 to 6 volts. The internal voltage booster will produce a VBOOST potential up to 12 volts above VIN. This VBOOST is not regulated, so its voltage is dependent on the input VDD voltage and output drive loading requirements. An internal undervoltage lockout circuit keeps the output in a low state when VBOOST drops below 7.8 volts. Output is enabled when VBOOST is above 11.3 volts.
Functional Block Diagram
EXT + C1 C1+ C1C2 2 1 3 V = 2 x VDD Voltage Booster Noninverting TC4627 5 VDD 8 Clock Output VBOOST (Unregulated 3 x VDD) 6 EXT + C3 UV LOCK
EXT + C2
In GND
7 Inverting TC4626 4
NOTE: Pin numbers correspond to 8-pin package.
2001-2012 Microchip Technology Inc.
DS21426C-page 1
Free Datasheet http://www.Datasheet4U.com
TC4626/TC4627
1.0 ELECTRICAL CHARACTERISTICS
*Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions above those indicated in the operation sections of the specifications is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability.
Absolute Maximum Ratings*
Supply Voltage ......................................................6.2V Input Voltage, Any Terminal ..................................... VS + 0.3V to GND – 0.3V Package Power Dissipation (TA 70°C) PDIP .........................................................730mW CERDIP....................................................800mW SOIC ........................................................760mW Derating Factor PDIP .......5.6 mW/°C Above 36°C CERDIP................................................6.0mW/°C Operating Temperature Range (Ambient) C Version......................................... 0°C to +70°C E Version ......................................-40°C to +85°C M Version ...................................-55°C to +125°C Storage Temperature Range ..............-65°C to +150°C
TC4626/TC4627 ELECTRICAL SPECIFICATIONS
Electrical Characteristics: TA = +25°C, VDD= 5V, C1 = C2 = C3 10F unless otherwise noted. Symbol Input VIH VIL IIN Output VOH VOL RO RO IPK Switching Time tR tF tD1 tD2 FMAX Voltage Booster R3 R2 FOSC VOSC UV @VBOOST VSTART @VBOOST VBOOST Voltage Tripler Output Source Resistance Voltage Doubler Output Source Resistance Oscillator Frequency Oscillator Amplitude Measured at C1Undervoltage Threshold Start Up Voltage @VDD = 5V — — 12 4.5 7.0 10.5 14.6 300 120 — — 7.8 11.3 — 400 200 28 10 8.5 12 — kHz V V V V No Load RLOAD = 10k IL = 10mA, VDD = 5V Rise Time Fall Time Delay Time Delay Time Maximum Switching Frequency — — — — 1.0 33 27 35 45 — 40 35 45 55 — nsec nsec nsec nsec MHz Figure 3-1, Figure 3-2 Figure 3-1, Figure 3-2 Figure 3-1, Figure 3-2 Figure 3-1, Figure 3-2 VDD = 5V, VBOOST > 8.5V, Figure 3-1 High Output Voltage Low Output Voltage Output Resistance, High Output Resistance, Low Peak Output Current VBOOST – 0.025 — — — — — — 10 8 1.5 — 0.025 15 10 — V V A IOUT = 10mA, VDD = 5V IOUT = 10mA, VDD = 5V Logic 1, High Input Voltage Logic 0, Low Input Voltage Input Current 2.4 — -1 — — — — 0.8 1 V V A 0VVINVDRIVE Parameter Min Typ Max Units Test Conditions
DS21426C-page 2
2001-2012 Microchip Technology Inc.
Free Datasheet http://www.Datasheet4U.com
TC4626/TC4627
TC4626/TC4627 ELECTRICAL SPECIFICATIONS (CONTINUED)
Symbol Power Supply IDD VDD Symbol Input VIH VIL IIN Output VOH VOL RO High Output Voltage Low Output Voltage Output Resistance, High VDRIVE – 0.025 — — 15 15 RO Output Resistance, Low — 10 10 IPK Switching Time tR tF tD1 tD2 FMAX Voltage Booster R3 R2 FOSC VOSC UV @VBOOST VSTART @VBOOST VBOOST Power Supply IDD VDD Power Supply Current Supply Voltage — 4.0 — — 4 6.0 mA V VIN = LOW or HIGH Voltage Boost Output Sou.