MAX16816 Datasheet, PDF (2/33 Pages) Maxim Integrated Products – Programmable Switch-Mode LED Driver with Analog-Controlled PWM Dimming

Programmable Switch-Mode LED Driver
with Analog-Controlled PWM Dimming
ABSOLUTE MAXIMUM RATINGS
V_CC, HI, LO, CLMP to QGND .................................-0.3V to +80V
CS+, CS-, DGT, UVEN, FAULT to QGND...............-0.3V to +80V
UVEN to QGND ..........................................-0.3V to (V_CC + 0.3V)
DRV to SGND .........................................................-0.3V to +18V
DRI, REG2, DIM to AGND ......................................-0.3V to +18V
QGND, SGND to AGND ........................................-0.3V to +0.3V
SNS+ to SNS- ...........................................................-0.3V to +6V
CS, FB, COMP, SNS+, SNS-, OV, REF,
RTSYNC to AGND ................................................-0.3V to +6V
REG1, CLKOUT to AGND ........................................-0.3V to +6V
CS+ to CS- .............................................................-0.3V to +12V
HI to LO ..................................................................-0.3V to +36V
CS+, CS-, DGT, CLMP to LO .................................-0.3V to +12V
CS+, CS-, DGT, CLMP to LO ........................-0.3V to (HI + 0.3V)
HI to CLMP .............................................................-0.3V to +28V
Continuous Power Dissipation* (T_A = +70°C)
32-Pin TQFN (derate 34.5mW/°C above +70°C) .......2758mW
Thermal Resistance
θ_JA ................................................................................29°C/W
θ_JC...............................................................................1.7°C/W
Operating Temperature Range .........................-40°C to +125°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
*As per JEDEC 51 standard, Multilayer Board (PCB).
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V_CC = V_UVEN = 14V, C_REG1 = 1µF, C_REG2 = 1µF, C_CLMP = 0.1µF, R_T = 25kΩ, T_A = T_J = -40°C to +125°C, unless otherwise noted.
Typical specifications are at T_A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Input Voltage Range
Supply Current to V_CC
Supply Current to HI
Shutdown Current to V_CC
Shutdown Current to HI
UVEN
V_CC
I_{Q_VCC}
I_{Q_HI}
I_{SHDN_VCC}
I_{SHDN_HI}
Exclude current to the gate driver, I_REG2
V_HI = 14V
V_UVEN ≤ 300mV
V_UVEN ≤ 300mV
5.5
76
V
2.7
4.5
mA
0.5
1.0
mA
25
45
µA
1
10
µA
V_CC UVLO Threshold
V_CC Threshold Hysteresis
UVEN Threshold
UVEN Input Current
REGULATORS
V_{CC_R}
V_{CC_F}
V_CC rising
V_CC falling
5.5
6.0
V
5.0
5.5
V_{CC_HYS}
0.4
V
V_UVR
V_UVF
V_UVEN rising
V_UVEN falling
1.10 1.244 1.36
V
1.00 1.145 1.26
I_UVEN
(V_UVEN = 0V and V_CC = 14V) (V_UVEN = 76V
and V_CC = 77V)
-0.2
+0.2
µA
REG1 Regulator Output
REG1 Dropout Voltage
REG1 Load Regulation
REG2 Dropout Voltage
REG2 Load Regulation
V_REG1
0 < I_REG1 < 2mA, 7.5V < V_CC < 76V
I_REG1 = 2mA, V_CC = 5.7V
4.75 5.00 5.25
V
4.00 4.50 5.25
ΔV/ΔI
I_REG1 = 2mA (Note 1)
V_CC = 7.5V, I_REG1 = 0 to 2mA
0.5
1.0
V
25
Ω
V_CC ≥ 9.5V, REG2 control register is ‘0011’,
I_REG2 = 20mA (Note 1)
0.5
1.0
V
ΔV/ΔI
V_CC ≥ 9.5V, REG2 control register is ‘0011’,
I_REG2 = 0 to 20mA
25
Ω
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