LM36010 Datasheet, PDF (5/37 Pages) Texas Instruments – Synchronous-Boost, Single-LED Flash Driver With 1.5-A High-Side Current Source

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LM36010
SNVSAN4A – APRIL 2017 – REVISED JULY 2017
6.5 Electrical Characteristics
T_A = 25°C and V_IN = 3.6 V, unless otherwise specified. Minimum and maximum limits apply over the full operating ambient
temperature range (–40°C ≤ TA ≤ 85°C).⁽¹⁾⁽²⁾
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
CURRENT SOURCE SPECIFICATIONS
I_LED
Current source accuracy
V_HR
LED current source regulation
voltage
V_OVP
Overvoltage Protection
V_OUT = 4 V , flash code = 0x7F = 1.5 A ⁽³⁾
V_OUT = 4 V , torch code = 0x7F = 376 mA
I_LED = 1.5 A
Flash
I_LED = 376 mA
Torch
ON threshold
OFF threshold
–10%
1.5
10%
A
–10%
376
10% mA
550
mV
350
4.86
5
5.10
V
4.71
4.85
4.95
STEP-UP DC-DC CONVERTER SPECIFICATIONS
R_PMOS
R_NMOS
I_CL
PMOS switch on-resistance
NMOS switch on-resistance
Switch current limit
Reg 0x01, bit [5] = 0
Reg 0x01, bit [5] = 1
–15%
–15%
175
mΩ
130
1.9
15%
A
2.8
15%
V_UVLO
V_IVFM
Undervoltage lockout threshold
Input voltage flash monitor trip
threshold
Falling V_IN
Reg 0x02, bits [7:5] = 000
2.5
V
–3%
2.9
3%
V
I_Q
Quiescent supply current
I_SB
Standby supply current
STROBE VOLTAGE SPECIFICATIONS
Device not switching, in pass mode
Device disabled
2.5 V ≤ V_IN ≤ 5.5 V
0.3
mA
0.8
4 µA
V_IL
Input logic low
V_IH
Input logic high
2.5 V ≤ V_IN ≤ 5.5 V
I²C-COMPATIBLE INTERFACE SPECIFICATIONS (SCL, SDA)
0
0.4
V
1.2
V_IN
V
V_IL
Input logic low
V_IH
Input logic high
V_OL
Output logic low
2.5 V ≤ V_IN ≤ 4.2 V
I_LOAD = 3 mA
0
0.4
V
1.2
V_IN
400 mV
(1) Minimum (MIN) and Maximum (MAX) limits are specified by design, test, or statistical analysis. Typical (TYP) numbers are not verified,
but do represent the most likely norm. Unless otherwise specified, conditions for typical specifications are: V_IN = 3.6 V and T_A = 25°C.
(2) All voltages are with respect to the potential at the GND pin.
(3) The ability to deliver 1.5 A of LED current is highly dependent upon the input voltage, LED voltage, ambient temperature and PCB
layout. Depending upon the system conditions, it is possible that the device could hit the internal thermal shutdown or thermal scale-
back value before the desired flash duration is reached. See Thermal Performance for more details.
6.6 Timing Requirements
t₁
SCL clock period
t₂
Data in set-up time to SCL high
t₃
Data out stable after SCL low
t₄
SDA low set-up time to SCL low (start)
t₅
SDA high hold time after SCL high (stop)
MIN
NOM
MAX UNIT
2.4
µs
100
ns
0
ns
100
ns
100
ns
6.7 Switching Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
ƒ_SW
Switching frequency
2.5 V ≤ V_IN ≤ 5.5 V
MIN
-10%
-10%
TYP
MAX UNIT
2
10%
MHz
4
10%
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