MAX16818_15 Datasheet, PDF (3/25 Pages) Maxim Integrated Products – 1.5MHz, 30A High-Efficiency, LED Driver with Rapid LED Current Pulsing

MAX16818
1.5MHz, 30A High-Efficiency, LED Driver
with Rapid LED Current Pulsing
Electrical Characteristics (continued)
(V_CC = 5V, V_DD = V_CC, T_A = T_J = T_MIN to T_MAX, unless otherwise noted. Typical specifications are at T_A = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
CLKOUT Phase Shift
CLKOUT Output Low Level
CLKOUT Output High Level
SYNC Input-High Pulse Width
SYNC Input Clock High Threshold
SYNC Input Clock Low Threshold
SYNC Pullup Current
SYNC Power-Off Level
INDUCTOR CURRENT LIMIT
q_CLKOUT
V_CLKOUTL
V_CLKOUTH
t_SYNC
V_SYNCH
V_SYNCL
I_{SYNC_OUT}
V_{SYNC_OFF}
With respect to DH, f_SW = 125kHz
I_SINK = 2mA
I_SOURCE = 2mA
V_RT/SYNC = 0V
Average Current-Limit Threshold
Reverse Current-Limit Threshold
Cycle-by-Cycle Current Limit
V_CL
V_CLR
CSP to CSN
CSP to CSN
CSP to CSN
Cycle-by-Cycle Overload
Response Time
V_CSP to V_CSN = 75mV
Hiccup Divider Ratio
Hiccup Reset Delay
LIM to V_CM, no switching
LIM Input Impedance
LIM to SGND
CURRENT-SENSE AMPLIFIER
CSP or CSN Input Resistance
R_CS
Common-Mode Range
V_CMR(CS) V_IN = 7V to 28V
Input Offset Voltage
V_OS(CS)
Amplifier Gain
A_V(CS)
3dB Bandwidth
f_3dB
CURRENT-ERROR AMPLIFIER (TRANSCONDUCTANCE AMPLIFIER)
Transconductance
gm
Open-Loop Gain
A_VOL(CE) No load
DIFFERENTIAL VOLTAGE AMPLIFIER FOR LED CURRENT (DIFF)
Common-Mode Voltage Range
DIFF Output Voltage
Input Offset Voltage
Amplifier Gain
3dB Bandwidth
Minimum Output-Current Drive
SENSE+ to SENSE- Input
Resistance
V_CMR(DIFF)
V_CM
V_OS(DIFF)
A_V(DIFF)
f_3dB
I_OUT(DIFF)
V_SENSE+ = V_SENSE- = 0V
C_DIFF = 20pF
R_VS
V_SENSE- = 0V
V_IOUT AMPLIFIER
Gain-Bandwidth Product
3dB Bandwidth
Output Sink Current
V_{V_IOUT} = 2.0V
V_{V_IOUT} = 2.0V
Output Source Current
MIN TYP MAX UNITS
180
Degrees
0.4
V
4.5
V
200
ns
2.0
V
0.4
V
250 750
µA
0.4
V
24.0 26.9 28.2 mV
-3.2 -2.3 -0.1
mV
60
mV
260
ns
0.547 0.558 0.565 V/V
200
ms
55.9
kW
4
kW
0
5.5
V
0.1
mV
34.5
V/V
4
MHz
550
µS
50
dB
0
+1.0
V
0.6
V
-1
+1
mV
0.994 1 1.006 V/V
3
MHz
4
mA
50 100
kW
4
1
30
90
MHz
MHz
µA
µA
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