5829 Datasheet, PDF (4/12 Pages) Allegro MicroSystems – 9-BIT SERIAL-INPUT, LATCHED SINK DRIVER

5829
9-BIT SERIAL-INPUT,
LATCHED SINK DRIVER
ELECTRICAL CHARACTERISTICS at T_A = +25°C, V_DD = 5 V,
in Test Circuit/Typical Application (unless otherwise noted).
Characteristic
Symbol
Test Conditions
Chopping Characteristics (T_J = +25°C to +150°C) with Fast Clamp Diodes
Enable Timeout
t_EN
R_EN = 20 kΩ, C_EN = 0.01 µF
Chopping Frequency
f_ch
R_C = 20 kΩ, C_C = 250 pF
Duty Cycle Range
dc
t_on / t_on + t_off
Chop Current Level
I_TRIP
V_REF = 2.0 V, f_ch < 100 kHz
V_REF = 2.8 V, f_ch < 100 kHz
Output Current Control Range
Delay
Chop Inhibit Voltage Range
V_REF
I_TRIP
t_d
V_REF
I_TRIP to I_OUT(P), T_A = +25°C
Negative current is defined as coming out of (sourcing) the specified device terminal.
Min.
Limits
Typ. Max.
Units
190 200
210
µs
90
100
110
kHz
15
—
< 50
%
0.9
1.0
1.1
A
1.26 1.4
1.54
A
1.0
—
3.2
V
0.5
—
1.6
A
—
300
500
ns
4.5
— V_DD + 0.3
V
NMOS
V_BB + 10 V V_BB
Dwg. EP-027
EXTERNAL HIGH-SIDE DRIVERS
PMOS
V_BB
CHARGE-PUMP CIRCUITRY
FOR SINGLE-SUPPLY OPERATION
V_BB
0.022
µF
10 V
Dwg. EP-028
Dwg. EP-026
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]