Datasheet

DRV104
3
SBVS036B
www.ti.com
ELECTRICAL CHARACTERISTICS
At T
C
= +25°C, V
S
= V
PS
= +24V, Load = 100Ω, 4.99kΩ Status OK flag pull-up to +5V, Boot capacitor = 470pF, Delay Adj Capacitor (C
D
) = 100pF to GND, Osc
Freq Adj Resistor = 191kΩ to GND, Duty Cycle Adj Resistor = 147kΩ to GND, and Master and SYNC open, unless otherwise noted.
DRV104
PARAMETER CONDITIONS MIN TYP MAX UNITS
OUTPUT
Output Saturation Voltage, Source I
O
= 1A +0.45 +0.65 V
I
O
= 0.1A +0.05 +0.07 V
Current Limit
(1)(7)
1.2 2.0 2.6 A
Leakage Current DMOS Output Off, V
PS
= V
S
= 32V 1 10 µA
DELAY TO PWM
(3)
DC to PWM Mode
Delay Equation
(4)
Delay to PWM ≈ C
D
• 10
6
(C
D
in F • 1.24) s
Delay Time C
D
= 0.1µF 60 80 100 ms
Minimum Delay Time
(5)
C
D
= 0 18 µs
DUTY CYCLE ADJUST
Duty Cycle Range 10 to 90 %
Duty Cycle Accuracy 50% Duty Cycle, 25kHz ±2 ±5%
vs Supply Voltage 50% Duty Cycle, V
S
= V
PS
= 8V to 32V ±2%
Nonlinearity
(6)
10% to 90% Duty Cycle 1 % FSR
DYNAMIC RESPONSE
Output Voltage Rise Time V
O
= 10% to 90% of V
PS
12 µs
Output Voltage Fall Time V
O
= 90% to 10% of V
PS
0.2 2 µs
SYNC Output Rise Time V
SYNC
= 10% to 90% 0.5 2 µs
SYNC Output Fall Time V
SYNC
= 10% to 90% 0.5 2 µs
Oscillator Frequency Range External Adjust 0.5 to 100 kHz
Oscillator Frequency Accuracy R
FREQ
= 191kΩ 20 25 30 kHz
STATUS OK FLAG
Normal Operation 20kΩ Pull-Up to +5V +4.5 +5 V
Fault
(7)
4.99kΩ Pull-Up to +5V +0.45 +0.6 V
Over-Current Flag: Set—Delay 5 µs
INPUT
(2)
V
INPUT
Low 0 +1.2 V
V
INPUT
High +2.2 +5.5 V
I
INPUT
Low (output disabled) V
INPUT
= 0V 0.01 1 µA
I
INPUT
High (output enabled) V
INPUT
= +4.5V 0.01 1 µA
Propagation Delay On to Off and Off to On, INPUT to OUT 2.2 µs
(master mode) On to Off and Off to On, INPUT to SYNC 0.4 µs
MASTER INPUT
V
MSTR
Low 0 +1.2 V
V
MSTR
High +2.2 +5.5 V
I
MSTR
Low (slave mode) V
INPUT
= 0V 15 25 µA
I
MSTR
High (master mode) V
INPUT
= +4.5V 15 25 µA
SYNC INPUT
V
SYNC
Low 0 +1.2 V
V
SYNC
High +2.2 +5.5 V
I
MSTR
Low (OUT disabled in slave mode) V
INPUT
= 0V 0.01 1 µA
I
MSTR
High (OUT disabled in slave mode) V
INPUT
= +4.5V 0.01 1 µA
Propagation Delay On to Off and Off to On, SYNC to OUT (slave) 2.2 µs
SYNC OUTPUT
(9)
V
OL
Sync I
SYNC
= 100µA (sinking) 0.1 0.3 V
V
OH
Sync I
SYNC
= 100µA (sourcing) +4.0 +4.2 V
THERMAL SHUTDOWN
Junction Temperature
Shutdown +160 °C
Reset from Shutdown +140 °C
POWER SUPPLY
Specified Operating Voltage +24 V
Operating Voltage Range +8 +32 V
Quiescent Current (V
S
)I
O
= 0 0.6 1 mA
TEMPERATURE RANGE
Specified Range –40 +85 °C
Operating Range –55 +125 °C
Storage Range –65 +150 °C
Thermal Resistance,
θ
JA
(8)
HTSSOP-14 with PowerPAD 37.5 °C/W
NOTES: (1) Output current resets to zero when current limit is reached. (2) Logic high enables output (normal operation). (3) Constant dc output to PWM (Pulse-
Width Modulated) time. (4) Maximum delay is determined by an external capacitor. Pulling the Delay Adjust Pin low corresponds to an infinite (continuous) delay.
(5) Connecting the Delay Adjust pin to +5V reduces delay time to 3µs. (6) V
IN
at pin 1 to percent of duty cycle at pins 6 and 7. (7) Flag indicates fault from over-
temperature or over-current conditions. (8)
θ
JA
= 37.5°C/W measured on JEDEC standard test board. θ
JC
= 2.07°C/W. (9) SYNC output follows power output in
master mode. Power output follows SYNC input in slave mode.