Datasheet

© 2008 Microchip Technology Inc. DS21455D-page 5
TC7106/A/TC7107/A
Temperature Coefficient of Analog
Common (with Respect to Positive
Supply)
V
CTC
————25kΩ Between Common and
Positive Supply
7106/7/A
7106/7
20
80
50
—
ppm/°C
ppm/°C
0°C ≤ T
A
≤ +70°C
(“C” Commercial Temperature
Range Devices)
Temperature Coefficient of Analog
Common (with Respect to Positive
Supply)
V
CTC
— — 75 ppm/°C 0°C ≤ T
A
≤ +70°C
(“I” Industrial Temperature
Range Devices)
TC7106A ONLY Peak to Peak
Segment Drive Voltage
V
SD
4 5 6 V V+ to V- = 9V
(Note 4)
TC7106A ONLY Peak to Peak
Backplane Drive Voltage
V
BD
4 5 6 V V+ to V- = 9V
(Note 4)
TC7107A ONLY Segment Sinking
Current (Except Pin 19)
5 8.0 — mA V+ = 5.0V
Segment Voltage = 3V
TC7107A ONLY Segment Sinking
Current (Pin 19)
10 16 — mA V+ = 5.0V
Segment Voltage = 3V
TC7106/A AND TC7107/A ELECTRICAL SPECIFICATIONS (CONTINUED)
Electrical Characteristics: Unless otherwise noted, specifications apply to both the TC7106/TC7106A and TC7107/TC7107A at
T
A
= +25°C, f
CLOCK
= 48 kHz. Parts are tested in the circuit of the Typical Operating Circuit.
Parameter Symbol Min Typ Max Unit Test Conditions
Note 1: Input voltages may exceed the supply voltages, provided the input current is limited to ±100 µA.
2: Dissipation rating assumes device is mounted with all leads soldered to printed circuit board.
3: Refer to “Differential Input” discussion.
4: Backplane drive is in phase with segment drive for “OFF” segment, 180° out of phase for “ON” segment. Frequency is 20
times the conversion rate. Average DC component is less than 50 mV.