DRV120 Datasheet, PDF (6/16 Pages) Texas Instruments – POWER SAVING CURRENT CONTROLLED SOLENOID DRIVER

DRV120
SLVSBG3A – JUNE 2012 – REVISED AUGUST 2012
ELECTRICAL CHARACTERISTICS
V_IN = 14 V, T_A = -40°C to 105°C, over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
SUPPLY
Standby current
I_Q
Quiescent current
EN = 0, V_IN = 14 V
EN = 1, V_IN = 14 V
100
300
CURRENT DRIVER
R_OUT
OUT to GND resistance
I_OUT = 200 mA
f_PWM
PWM frequency
OSC = GND
D_MAX
Maximum PWM duty cycle
D_MIN
Minimum PWM duty cycle
t_D
Start-up delay
Delay between EN going high until driver
enabled⁽¹⁾, f_PWM = 20 kHz
CURRENT CONTROLLER, INTERNAL SETTINGS
1.7
15
20
100
9
25
I_PEAK
Peak current
PEAK = GND
I_HOLD
Hold current
HOLD = GND
CURRENT CONTROLLER, EXTERNAL SETTINGS
160
200
40
50
t_KEEP ⁽²⁾
Externally set keep time at peak
current
C_KEEP = 1 µF
75
I_PEAK
Externally set peak current
R_PEAK = 50 kΩ
R_PEAK = 200 kΩ
250
83
I_HOLD
Externally set hold current
R_HOLD = 50 kΩ
R_HOLD = 200 kΩ
100
33
f_PWM
Externally set PWM frequency
R_OSC = 50 kΩ
R_OSC = 200 kΩ
60
20
LOGIC INPUT LEVELS (EN)
V_IL
Input low level
V_IH
Input high level
R_EN
Input pull-up resistance
LOGIC OUTPUT LEVELS (STATUS)
1.65
350
500
V_OL
Output low level
I_IL
Output leakage current
UNDERVOLTAGE LOCKOUT
Pull-down activated, I_STATUS = 2 mA
Pull-down deactivated, V(STATUS) = 5 V
V_UVLO
Undervoltage lockout threshold
4.6
THERMAL SHUTDOWN
T_TSD
Junction temperature shutdown
threshold
160
T_TSU
Junction temperature startup
threshold
140
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MAX UNIT
150
µA
400
2.5
Ω
25 kHz
%
%
50 µs
240 mA
60 mA
ms
mA
mA
kHz
1.3
V
V
kΩ
0.3
V
1 µA
V
°C
°C
(1) Logic HIGH between 4 V and 7 V. Note: absolute max voltage rating is 7 V.
(2) Either internal or external t_KEEP time setting is selected to be activated during manufacturing of production version of DRV120.
6
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