TC4626 Datasheet, PDF (1/7 Pages) TelCom Semiconductor, Inc – POWER CMOS DRIVERS WITH VOLTAGE TRIPLER

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TC4626
TC4627
POWER CMOS DRIVERS WITH VOLTAGE TRIPLER
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FEATURES
GENERAL DESCRIPTION
s Power driver with on Board Voltage Booster
s Low IDD ......................................................... < 4 mA
s Small Package ........................................ 8-Pin PDIP
s Under-Voltage Circuitry
s Fast Rise-Fall Time .................. < 40nsec @ 1000pF
s Below-Rail Input Protection
APPLICATIONS
s Raises 5V to drive higher-Vgs (ON) MOSFETs
s Eliminates one system power supply
The TC4626/4627 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
3 ^{VIN. This VBOOST is not regulated, so its voltage is dependent}
on the input V_DD voltage and output drive loading require-
ments. 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.
ORDERING INFORMATION
PIN CONFIGURATIONS
8-Pin Plastic DIP
/CerDIP
16-Pin SOIC (Wide)
Part No.
TC4626COE
TC4626CPA
Package
16-Pin SOIC (Wide)
Temp. Range
– 55°C to +125°C
4
8-Pin Plastic DIP
– 40°C to +85°C
C1– ₁
C1+ 2
C2 3
GND 4
TC4626
TC4627
8 VDD
7 IN
6 VBOOST
5 _OUT
C1– 1
NC 2
C1+ 3
NC 4
C2 5
NC 6
NC 7
GND 8
16 ^VDD
15 NC
14 NC
TC4626
TC4627
13 IN
12 NC
11 VBOOST
10 NC
9 OUT
TC4626EOE
TC4626EPA
TC4626MJA
TC4627COE
TC4627CPA
TC4627EOE
TC4627EPA
16-Pin SOIC (Wide)
8-Pin Plastic DIP
8-Pin CerDIP
– 40°C to +85°C
– 0°C to +70°C
– 0°C to +70°C
16-Pin SOIC (Wide)
8-Pin Plastic DIP
– 55°C to +125°C
– 40°C to +85°C
5
16-Pin SOIC (Wide)
– 40°C to +85°C
8-Pin Plastic DIP
– 0°C to +70°C
TC4627MJA
8-Pin CerDIP
– 0°C to +70°C
FUNCTIONAL BLOCK DIAGRAM
EXT ⁺
C1
EXT ⁺
C2
2
C1+
1
C1-
3
C2
V = 2 x VDD
VOLTAGE
BOOSTER
VDD
8
7
IN
GND ⁴
CLOCK
VBOOST
NON-
INVERTING
4627
(UNREGULATED 3 x VDD)
UV LOCK
6
EXT +
C3
5 _OUTPUT
INVERTING
4626
6
7
NOTE: Pin numbers correspond to 8-pin package
TELCOM SEMICONDUCTOR, INC.
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TC4626/7-7 10/21/96
4-271