Datasheet

DRV103
3
SBVS029A
ELECTRICAL CHARACTERISTICS
At T
C
= +25°C, V
S
= +24V, Load = 100Ω, and 4.99kΩ “OK Flag” pullup to +5V, Delay Adj Capacitor = 100pF to Ground, Freq Adj Resistor = 205kΩ to Ground,
Duty Cycle Adj Resistor = 137kΩ to Ground, unless otherwise noted.
DRV103U, H
PARAMETER CONDITIONS MIN TYP MAX UNITS
OUTPUT
Output Current
(1)
SO-8 Package (U) 1.5 A
PowerPAD™ SO-8 Package (H) 3 A
Output Saturation Voltage, Source I
O
= 1A +0.4 +0.6 V
I
O
= 0.1A +0.05 +0.07 V
Current Limit
(2), (10)
3 3.5 4.2 A
Leakage Current DMOS Output Off, V
O
= +32V ±1 ±10 µA
DIGITAL CONTROL INPUT
(3)
V
CTR
Low (output disabled) 0 +1.2 V
V
CTR
High (output enabled) +2.2 +5.5 V
I
CTR
Low (output disabled) V
CTR
= 0V 0.01 1 µA
I
CTR
High (output enabled) V
CTR
= +5.5V 120 150 µA
Propagation Delay On-to-Off and Off-to-On 1 µs
DELAY TO PWM
(4)
DC to PWM Mode
Delay Equation
(5)
See Note (6) s
Delay Time C
D
= 0.1µF 90 110 140 ms
Minimum Delay Time
(7)
C
D
= 0 18 µs
DUTY CYCLE ADJUST
Duty Cycle Range 10 to 90 %
Duty Cycle Accuracy 50% Duty Cycle, 25kHz ±2%
vs Supply Voltage 50% Duty Cycle, V
S
= V
O
= +8V to +32V ±2%
Nonlinearity
(8)
10% to 90% Duty Cycle 1 % FSR
DYNAMIC RESPONSE
Output Voltage Rise Time V
O
= 10% to 90% of V
S
0.2 2 µs
Output Voltage Fall Time V
O
= 90% to 10% of V
S
0.2 2 µs
Oscillator Frequency Range External Adjust 0.5 to 100 kHz
Oscillator Frequency R
OSC
= 205kΩ 20 25 30 kHz
OK FLAG
Normal Operation 20kΩ Pull-Up to +5V +4.5 5.0 V
Fault
(90)
Sinking 1mA +0.22 +0.4 V
Sink Current V
OKFLAG
= 0.4V 2 mA
Over-Current Flag: Set 5 µs
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 I
O
= 0 0.4 0.8 mA
TEMPERATURE RANGE
Specified Range –40 +85 °C
Operating Range –55 +125 °C
Storage Range –65 +150 °C
Thermal Resistance,
θ
JA
SO-8 (U) 1in
2
0.5oz. Copper on PCB 150 °C/W
PowerPAD™ SO-8 (H)
(10)
1in
2
0.5oz. Copper on PCB 68 °C/W
NOTES: (1) Output current is limited by internal current limit and by DRV103 power dissipation. (2) Output current resets to zero when current limit is reached.
(3) Logic High enables output (normal operation). (4) Constant DC output to PWM (Pulse-Width Modulated) time. (5) Maximum delay is determined by an external
capacitor. Pulling the Delay Adjust Pin LOW corresponds to an infinite (continuous) delay. (6) Delay to PWM ≈ C
D
• 10
6
(C
D
in
F • 1.1). (7) Connecting the Delay Adjust Pin to +5V reduces delay time to less than 1µs. (8) V
IN
at pin 3 to percent of duty cycle at pin 6. (9) OK Flag LOW indicates
fault from over-temperature or over-current conditions. (10) PowerPAD™ SO-8 (H) package has highest continuous current (2A) because the chip operates at a
lower junction temperature when underside metal tab is connected to a heat sink or heat spreader.
θ
JA
= 68°C/W measured on DRV103 demo board;
θ
JA
= 58°C/W measured on JEDEC standard test board. H package θ
JC
= 16.7°C/W.