TC7136 View Datasheet(PDF) - Microchip Technology
Part Name
Description
Manufacturer
TC7136 Datasheet PDF : 22 Pages
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TC7136/TC7136A
TC7136 AND TC7136A ELECTRICAL SPECIFICATIONS (CONTINUED)
Electrical Characteristics: VS = 9V, fCLK = 16kHz, and TA = +25°C, unless otherwise noted.
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
Analog Common
VCTC
Analog Common Temperature
Coefficient
250kΩ between Common and V+
TC7136A
TC7136
—
35
75 ppm/°C 0°C ≤ TA ≤ +70°C
—
70
150 ppm/°C "C" Commercial Temp. Range Devices
TC7136A
TC7136
—
35
100 ppm/°C -25°C ≤ TA ≤ +85°C
—
70
150 ppm/°C "I" Industrial Temp. Range Devices
VC
Analog Common Voltage
2.7
3.05
3.35
V 250kΩ Between Common and V+
LCD Drive
VSD
LCD Segment Drive Voltage
4
5
6
VP-P V+ to V- = 9V
VBD
LCD Backplane Drive Voltage
4
5
6
VP-P V+ to V- = 9V
Power Supply
IS
Note
Power Supply Current
—
70
100
μA VIN = 0V, V+ to V- = 9V (Note 6)
1: Input voltages may exceed supply voltages when input current is limited to 100μA.
2: Dissipation rating assumes device is mounted with all leads soldered to PC board.
3: Refer to "Differential Input" discussion.
4: Backplane drive is in phase with segment drive for "OFF" segment and 180° out-of-phase for "ON" segment. Frequency
is 20 times conversion rate. Average DC component is less than 50mV.
5: See "Typical Application".
6: A 48kHz oscillator increases current by 20μA (typical). Common current not included.
DS21461C-page 6
© 2005 Microchip Technology Inc.
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