TC4626_13 Datasheet, PDF (1/18 Pages) Microchip Technology – Power CMOS Drivers With Voltage Tripler

TC4626/TC4627
Power CMOS Drivers With Voltage Tripler
Features
• Power Driver With On Board Voltage Booster
• Low I_DD – <4mA
• Small Package – 8-Pin PDIP
• Under-Voltage Circuitry
• Fast Rise-Fall Time – <40nsec @1000pF
• Below-Rail Input Protection
Applications
• Raises 5V to drive higher – Vgs (ON) MOSFETs
• Eliminates one system power supply
Device Selection Table
Part
Number
Package
Temp. Range
TC4626COE
TC4626CPA
TC4626EOE
TC4626EPA
16-Pin SOIC (Wide)
8-Pin PDIP
16-Pin SOIC (Wide)
8-Pin PDIP
-55°C to +125°C
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
TC4626MJA
TC4627COE
TC4627CPA
TC4627EOE
TC4627EPA
TC4627MJA
8-Pin CERDIP
16-Pin SOIC (Wide)
8-Pin PDIP
16-Pin SOIC (Wide)
8-Pin PDIP
8-Pin CERDIP
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
Functional Block Diagram
EXT ⁺
C₁
EXT ⁺
C₂
2
C1+
C1-
1
3
C2
V = 2 x V_DD
Voltage
Booster
V_DD
8
7
In
GND 4
Clock
Package Type
8-Pin PDIP/CERDIP
C1– 1
C1+ 2
C2 3
GND 4
TC4626
TC4627
8 VDD
7 IN
6 V_BOOST
5 OUT
16-Pin SOIC (Wide)
C1– 1
NC 2
C1+ 3
NC 4
C2 5
NC 6
NC 7
GND 8
16 VDD
15 NC
14 NC
TC4626 ^{13 IN}
TC4627 12 NC
11 VBOOST
10 NC
9 OUT
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 V_BOOST
potential up to 12 volts above V_IN. This V_BOOST is not
regulated, so its voltage is dependent on the input V_DD
voltage and output drive loading requirements. An
internal undervoltage lockout circuit keeps the output in
a low state when V_BOOST drops below 7.8 volts. Output
is enabled when V_BOOST is above 11.3 volts.
V_BOOST
Noninverting
TC4627
(Unregulated 3 x V_DD)
UV LOCK
6
EXT +
C₃
5 _Output
Inverting
TC4626
NOTE: Pin numbers correspond to 8-pin package.
 2001-2012 Microchip Technology Inc.
DS21426C-page 1