SNVS549C June 2009 – February 2016 LM3554
PRODUCTION DATA.
MIN | MAX | UNIT | ||
---|---|---|---|---|
VIN, VSW, VOUT | –0.3 | 6 | V | |
VSCL, VSDA, VHWEN, VSTROBE, VTX1/TORCH, VENVM/TX2, VLED1, VLED2, VLEDI/NTC | 0.3 V to (VIN + 0.3 V) w/ 6 V max |
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Continuous power dissipation(4) | Internally limit | |||
Junction temperature, TJ-MAX | 150 | °C | ||
Maximum lead temperature (soldering) | See(5) | |||
Storage temperature, Tstg | –65 | 150 | °C |
VALUE | UNIT | |||
---|---|---|---|---|
V(ESD) | Electrostatic discharge | Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) | ±2000 | V |
MIN | NOM | MAX | UNIT | ||
---|---|---|---|---|---|
Input voltage, VIN | 2.5 | 5.5 | V | ||
Junction temperature, TJ | –30 | 125 | °C | ||
Ambient temperature, TA(2) | –30 | 85 | °C |
THERMAL METRIC(1) | LM3554 | UNIT | |
---|---|---|---|
YFQ (DSBGA) | |||
16 PINS | |||
RθJA | Junction-to-ambient thermal resistance | 75.8 | °C/W |
RθJC(top) | Junction-to-case (top) thermal resistance | 0.5 | °C/W |
RθJB | Junction-to-board thermal resistance | 16.5 | °C/W |
ψJT | Junction-to-top characterization parameter | 0.3 | °C/W |
ψJB | Junction-to-board characterization parameter | 16.4 | °C/W |
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | ||
---|---|---|---|---|---|---|---|
CURRENT SOURCE SPECIFICATIONS | |||||||
ILED | Current source accuracy | 600-mA flash LED setting, VOUT = VIN | ILED1 and ILED2 | 1128 | 1200 | 1284 | mA |
ILED1 or ILED2 | 541 | 600 | 657 | ||||
17-mA torch current setting VHR = 500 mV |
ILED1 and ILED2 | 30.4 | 33.8 | 37.2 | |||
VHR | Current source regulation voltage (VOUT – VLED) | 600-mA setting, VOUT = 3.75 V | 300 | mV | |||
IMATCH | LED Current Matching | 600-mA setting, VLED = 3.2 V | 0.35% | ||||
STEP-UP DC-DC CONVERTER | |||||||
VREG | Output voltage accuracy | 2.7 V ≤ VIN ≤ 4.2 V, IOUT = 0 mA VENVM = VIN, OV bit = 0 |
4.8 | 5 | 5.2 | V | |
VOVP | Output overvoltage protection trip point(3) | On threshold, 2.7 V ≤ VIN ≤ 5.5 V | 5.4 | 5.6 | 5.7 | V | |
Off threshold | 5.3 | ||||||
RPMOS | PMOS switch on-resistance | IPMOS = 1 A | 150 | mΩ | |||
RNMOS | NMOS switch on-resistance | INMOS = 1 A | 150 | mΩ | |||
ICL | Switch current limit(4) | CL bits = 00 | 0.711 | 1.05 | 1.373 | A | |
CL bits = 01 | 1.295 | 1.51 | 1.8 | ||||
CL bits = 10 | 1.783 | 1.99 | 2.263 | ||||
CL bits = 11 | 2.243 | 2.45 | 2.828 | ||||
IOUT_SC | Output short-circuit current limit | VOUT < 2.3 V | 550 | mA | |||
ILED/NTC | Indicator current | LEDI/NTC bit = 0 | IND1, IND0 bits = 00 | 2.3 | mA | ||
IND1, IND0 bits = 01 | 4.6 | ||||||
IND1, IND0 bits = 10 | 6.9 | ||||||
IND1, IND0 bits = 11 | 8.2 | ||||||
VTRIP | Comparator trip threshold | LEDI/NTC bit = 1, 2.7 V ≤ VIN ≤ 5.5 V | 0.947 | 1.052 | 1.157 | V | |
ƒSW | Switching frequency | 2.7 V ≤ VIN ≤ 5.5 V | 1.75 | 2 | 2.23 | MHz | |
IQ | Quiescent supply current | Device not switching | 630 | µA | |||
ISHDN | Shutdown supply current | 2.7 V ≤ VIN ≤ 5.5 V | 3.5 | 6.6 | µA | ||
tTX | Flash-to-torch LED current settling time | TX_ Low to High, ILED1 + ILED2 = 1.2 A to 180 mA | 20 | µs | |||
VIN_TH | VIN monitor trip threshold | VIN falling, VIN monitor register = 0x01 (enabled with VIN_TH = 3.1 V) |
2.95 | 3.09 | 3.23 | V | |
TX1/TORCH/GPIO1, STROBE, HWEN, ENVM/TX2/GPIO2 VOLTAGE | |||||||
VIL | Input logic low | 2.7 V ≤ VIN ≤ 5.5 V | 0 | 0.4 | V | ||
VIH | Input logic high | 2.7 V ≤ VIN ≤ 5.5 V | 1.2 | VIN | V | ||
VOL | Output logic low | ILOAD = 3 mA, 2.7 V ≤ VIN ≤ 5.5 V | 400 | mV | |||
RTX1/TORCH | Internal pulldown resistance at TX1/TORCH | 300 | kΩ | ||||
RSTROBE | Internal pulldown resistance at STROBE | 300 | kΩ | ||||
I2C-COMPATIBLE VOLTAGE SPECIFICATIONS (SCL, SDA) | |||||||
VIL | Input logic low | 2.7 V ≤ VIN ≤ 5.5 V | 0 | 0.4 | V | ||
VIH | Input logic high | 2.7 V ≤ VIN ≤ 5.5 V | 1.22 | VIN | V | ||
VOL | Output logic low (SCL) | ILOAD = 3 mA, 2.7 V ≤ VIN ≤ 5.5 V | 400 | mV |
MIN | NOM | MAX | UNIT | ||
---|---|---|---|---|---|
1 / t1 | SCL clock frequency | 400 | kHz | ||
t2 | Data in setup time to SCL high | 100 | ns | ||
t3 | Data out stable after SCL low | 0 | ns | ||
t4 | SDA low setup time to SCL low (start) | 160 | ns | ||
t5 | SDA high hold time after SCL high (stop) | 160 | ns |
VOUT = 5 V | Voltage-Output Mode |
VIN = 3.6 V | VLED1, VLED2 = 3.2 V | TA = –40°C to +85°C |
Current Matching = Abs Value ((ILED1–ILED2)÷(ILED1+ILED2))×100 |
VLED1, VLED2 = 3.2 V | 75-mA Setting | TA = 85°C |
VIN = 3.6 V | VLED1, VLED2 = 3.2 V | TA = –40°C To +85°C |
Current Matching = Abs Value ((ILED1–ILED2)÷(ILED1+ILED2))×100 |
VLED1, VLED2 = 3.2 V | 600-mA Setting | TA = 85°C |
VLED = 1.5 V |
VLEDI = 2 V |
VLEDI = 2 V |
VOUT = 5 V | Voltage-Output Mode |
VLED1, VLED2 = 3.2 V | 75-mA Setting | TA = 25°C |
VLED1, VLED2 = 3.2 V | 75-mA Setting | TA = –40°C |
VLED1, VLED2 = 3.2 V | 600-mA Setting | TA = 25°C |
VLED1, VLED2 = 3.2 V | 600-mA Setting | TA = –40°C |
VHWEN = 0 V |
VOUT = 5 V | IOUT = 400 mA |
VLEDI = 2 V |
VLEDI = 2 V |