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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
-55C to +125C -40C to +85C -40C to +85C 0C to +70C 0C to +70C -55C to +125C -40C to +85C -40C to +85C 0C to +70C 0C to +70C
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 V BOOST 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.
2002 Microchip Technology Inc.
DS21426B-page 1
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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 70C) PDIP .........................................................730mW CERDIP....................................................800mW SOIC ........................................................760mW Derating Factor PDIP .......5.6 mW/C Above 36C CERDIP................................................6.0mW/C Operating Temperature Range (Ambient) C Version......................................... 0C to +70C E Version ...................................... -40C to +85C M Version ................................... -55C to +125C Storage Temperature Range .............. -65C to +150C
TC4626/TC4627 ELECTRICAL SPECIFICATIONS
Electrical Characteristics: TA = +25C, VDD = 5V, C1 = C2 = C 3 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 0V VIN VDRIVE Parameter Min Typ Max Units Test Conditions
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DS21426B-page 2
2002 Microchip Technology Inc.
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 @V BOOST 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 Source Resistance Voltage Doubler Output Source Resistance Oscillator Frequency Oscillator Amplitude Measured at C1Undervoltage Threshold Start Up Voltage @VDD = 5V -- -- 5 4.5 7.0 10.5 14.6 400 170 -- -- 7.8 11.3 -- 500 300 50 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 -- -- -- -- 750 -- -- -- -- -- 55 50 60 70 -- nsec nsec nsec nsec kHz 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 Peak Output Current -- 1.5 13 15 -- A 20 25 -- -- -- 0.025 V V IOUT = 10mA, VDD = 5V C & E Version (TA = 70C or 85C) M Version (TA = 125C) IOUT = 10mA, VDD = 5V C & E Version (TA = 70C or 85C) M Version (TA = 125C) Logic 1, High Input Voltage Logic 0, Low Input Voltage Input Current 2.4 -- -10 -- -- -- -- 0.8 1 V V A 0V VIN VBOOST Power Supply Current Supply Voltage -- 4.0 -- -- 2.5 6.0 mA V VIN = LOW or HIGH Parameter Min Typ Max Units Test Conditions
Electrical Characteristics: Over operating temperature range, VDD = 5V, C1 = C2 = C3 10F unless otherwise noted. Parameter Min Typ Max Units Test Conditions
2002 Microchip Technology Inc.
DS21426B-page 3
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TC4626/TC4627
2.0 PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
Pin No. (8-Pin PDIP, CERDIP) 1 2 3 4 5 6 7 8
PIN FUNCTION TABLE
Symbol C1C1+ C2 GND OUT VBOOST IN VDD Ground. Description
Pin No. (16-Pin SOIC Wide) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Symbol C1NC C1+ NC C2 NC NC GND OUT NC VBOOST NC IN NC NC VDD No connect. No connect. No connect. No connect. No connect. No connect. Ground. No connect. No connect.
Description
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DS21426B-page 4
2002 Microchip Technology Inc.
TC4626/TC4627
3.0 APPLICATIONS INFORMATION
INVERTING DRIVER SWITCHING TIME
VBOOST
FIGURE 3-1:
FIGURE 3-2:
NONINVERTING DRIVER SWITCHING TIME
VBOOST
C3 10F 6 Input C1 10F 1 3 C2 10F 7 2 C1+ C15
0.1F Ceramic
C3 10F 6 7 2 C1 10F 1 C1+ C15
0.1F Ceramic
Output CL = 1000pF
Input
Output CL = 1000pF
C2
TC4626
4
8
VDD = 5V
3 C2 10F
C2
TC4627
4
8
VDD = 5V
+5V Input 0V VBOOST Output 0V Input: 100kHz, square wave, tRISE = tFALL 10nsec 10% 10% tD1 tF 90%
90%
+5V Input
90%
tD2
0V
tR 90%
10% 90% 90%
VBOOST tD1 Output
tD2 tR
tF
10%
10%
0V
10%
Input: 100kHz, square wave, tRISE = tFALL 10nsec
2002 Microchip Technology Inc.
DS21426B-page 5
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TC4626/TC4627
3.1 BOOSTER FUNCTION
The voltage booster is an unregulated voltage tripler circuit. The tripler consists of three sets of internal switches and three external capacitors. S1a and S1b charge capacitor C1 to V DD potential. S2a and S2b add C1 potential to VDD input to charge C2 to 2 x VDD. S3a and S3b add C1 potential to C2 to charge C3 to 3 x VDD. The position of the switches is controlled by the internal 4 phase clock.
FIGURE 3-3:
VOLTAGE BOOSTER
6 + C3 S3a 3 + C2 S2a 2 x VDD S3b 3 x VDD, VBOOST 6
(4 to 6V) VDD
8 S1a 2 S2b
+ C1 1 S1b GND 4
FIGURE 3-4:
POSITION OF SWITCHES
Pin 1 & 2 Waveforms 3 x VDD
Pin 2 Voltage
2 x VDD VDD 2 x VDD
Pin 1 Voltage VDD 0
On S1 Off
S2
On Off
S3
On Off
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DS21426B-page 6
2002 Microchip Technology Inc.
TC4626/TC4627
4.0
Note:
TYPICAL CHARACTERISTICS
The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
TC4626 VOH vs. Frequency
16 14 12 10 2200pF 8 6 4 2 0 1000pF 470pF
VS = 5V TA = -55C
TC4626 VOH vs. Frequency
14 12 470pF
VS = 5V TA = 25C
VOUT HI (Volts)
VOUT HI (Volts)
10 8 6 2200pF 4 2 0 1000pF
5
500 1,000 1,500 2,000 2,500 3,000 3,500 FREQUENCY (kHz)
10
500 1,000 1,500 2,000 2,500 3,000 3,500 FREQUENCY (kHz)
TC4626 VOH vs. Frequency
14 12
VS = 5V TA = 125C
100
Delay Time vs. Temperature
Input = 0-5V; TR & TF <10nsec; @ <20kHz
tD2
VS = 4V CLOAD = 1000pF
80
VOUT HI (Volts)
10 8 6
470pF
Time (nsec)
60
tD1
2200pF
4 2 0
1000pF
40
tRISE
20
tFALL
0
5
500 1,000 1,500 2,000 2,500 3,000 3,500 FREQUENCY (kHz)
-40 -20
0
20
40
60
80 100 120
TEMPERATURE (C)
Delay Time vs. Temperature
60 50 40 30 20 10 0
VS = 5V CLOAD = 1000pF
Delay Time vs. Temperature
50
VS = 6V CLOAD = 1000pF
40
Time (nsec)
tD2 tD1
Time (nsec)
tD2
30
tD1
20
tFALL
tFALL
tRISE
tRISE
Input = 0-5V; TR & TF <10nsec; @ <20kHz
10
Input = 0-5V; TR & TF <10nsec; @ <20kHz -40 -20 0 20 40 60 80 100 120
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (C)
TEMPERATURE (C)
2002 Microchip Technology Inc.
DS21426B-page 7
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TC4626/TC4627
TYPICAL CHARACTERISTICS (CONTINUED)
TC4626 VOH vs. Frequency
16 15 14 13 12
VS = 5V TA = 25C
TC4626 VOH vs. Frequency
16 15 14
VS = 5V TA = -55C
VOUT HI (Volts)
VOUT HI (Volts)
470pF
13 12 11 10
470pF
11 10 9 8 0
1,000pF
1,000pF
2,200pF
2,200pF 1 2 3 4 5 6 7 8 9
10
9 8 0
1
2
3
4
5
6
7
8
9
10
FREQUENCY x 100 kHz
FREQUENCY x 100 kHz
TC4626 VOH vs. Frequency
16 15 14
VS = 5V TA = 125C
VOUT HI (Volts)
13 12 11 10 9 8 0
470pF 1,000pF 2,200pF 1 2 3 4 5 6 7 8 9
10
FREQUENCY x 100 kHz
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DS21426B-page 8
2002 Microchip Technology Inc.
TC4626/TC4627
5.0
5.1
PACKAGING INFORMATION
Package Dimensions
Package marking data not available at this time.
8-Pin Plastic DIP
PIN 1
.260 (6.60) .240 (6.10)
.045 (1.14) .030 (0.76) .400 (10.16) .348 (8.84) .200 (5.08) .140 (3.56) .150 (3.81) .115 (2.92)
.070 (1.78) .040 (1.02)
.310 (7.87) .290 (7.37)
.040 (1.02) .020 (0.51)
.015 (0.38) .008 (0.20) .400 (10.16) .310 (7.87)
3 MIN.
.110 (2.79) .090 (2.29)
.022 (0.56) .015 (0.38)
Dimensions: inches (mm)
8-Pin CDIP (Narrow)
.110 (2.79) .090 (2.29)
PIN 1
.300 (7.62) .230 (5.84)
.055 (1.40) MAX. .400 (10.16) .370 (9.40) .200 (5.08) .160 (4.06) .200 (5.08) .125 (3.18)
.020 (0.51) MIN. .320 (8.13) .290 (7.37) .040 (1.02) .020 (0.51) .015 (0.38) .008 (0.20) .400 (10.16) .320 (8.13) .065 (1.65) .020 (0.51) .045 (1.14) .016 (0.41)
.150 (3.81) MIN.
3 MIN.
Dimensions: inches (mm)
2002 Microchip Technology Inc.
DS21426B-page 9
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TC4626/TC4627
Package Dimensions (Continued)
16-Pin SOIC (Wide)
PIN 1
.299 (7.59) .419 (10.65) .291 (7.40) .398 (10.10)
.413 (10.49) .398 (10.10) .104 (2.64) .097 (2.46) .012 (0.30) .050 (1.27) TYP. .019 (0.48) .014 (0.36) .004 (0.10) 8 MAX. .050 (1.27) .016 (0.40) .013 (0.33) .009 (0.23)
Dimensions: inches (mm)
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DS21426B-page 10
2002 Microchip Technology Inc.
TC4626/TC4627
Sales and Support
Data Sheets Products supported by a preliminary Data Sheet may have an errata sheet describing minor operational differences and recommended workarounds. To determine if an errata sheet exists for a particular device, please contact one of the following: 1. 2. 3. Your local Microchip sales office The Microchip Corporate Literature Center U.S. FAX: (480) 792-7277 The Microchip Worldwide Site (www.microchip.com)
Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using. New Customer Notification System Register on our web site (www.microchip.com/cn) to receive the most current information on our products.
2002 Microchip Technology Inc.
DS21426B-page11
TC4626/TC4627
NOTES:
DS21426B-page12
2002 Microchip Technology Inc.
TC4626/TC4627
Information contained in this publication regarding device applications and the like is intended through suggestion only and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. No representation or warranty is given and no liability is assumed by Microchip Technology Incorporated with respect to the accuracy or use of such information, or infringement of patents or other intellectual property rights arising from such use or otherwise. Use of Microchip's products as critical components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any intellectual property rights.
Trademarks The Microchip name and logo, the Microchip logo, FilterLab, KEELOQ, microID, MPLAB, PIC, PICmicro, PICMASTER, PICSTART, PRO MATE, SEEVAL and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. dsPIC, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB, In-Circuit Serial Programming, ICSP, ICEPIC, microPort, Migratable Memory, MPASM, MPLIB, MPLINK, MPSIM, MXDEV, MXLAB, PICC, PICDEM, PICDEM.net, rfPIC, Select Mode and Total Endurance are trademarks of Microchip Technology Incorporated in the U.S.A. Serialized Quick Turn Programming (SQTP) is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. (c) 2002, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved.
Printed on recycled paper.
Microchip received QS-9000 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona in July 1999 and Mountain View, California in March 2002. The Company's quality system processes and procedures are QS-9000 compliant for its PICmicro (R) 8-bit MCUs, KEELOQ(R) code hopping devices, Serial EEPROMs, microperipherals, non-volatile memory and analog products. In addition, Microchip's quality system for the design and manufacture of development systems is ISO 9001 certified.
2002 Microchip Technology Inc.
DS21426B-page 13
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05/01/02
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DS21426B-page 14
2002 Microchip Technology Inc.

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