DLPA2000
www.ti.com.cn
ZHCSCO5B –JUNE 2014–REVISED FEBRUARY 2018
Electrical Characteristics (continued)
over operating free-air temperature range (unless otherwise noted) (see (1)(2)
)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
LED CURRENT CONTROL
Vf
LED forward voltage
4.8
V
VIN ≥ 2.3 V, VLED ≤ 4.8 V
RLIM = 100 mΩ, 0.1%, TA = 25°C (see
register settings)
25
Current at minimum code 0x00Ch for SWx
IDAC[9:0].
DLPA2000 LED currents
mA
VIN ≥ 2.3 V, VLED ≤ 4.8 V
RLIM = 100 mΩ, 0.1%, TA = 25°C (see
register settings)
ILED
750
Current at maximum code 0x307h for
SWx_IDAC[9:0].
DC current accuracy, SW4, 5, 6
Transient LED current limit range
RLIM = 100 mΩ
25
130
mA
mA
ILIM[3:0] = 0000 at RLIM = 100 mΩ
ILIM[3:0] = 1111 at RLIM = 100 mΩ
1500
ILED from 5% to 95%, ILED = 300 mA,
Transient current limit disabled
Not tested in production
trise
Current rise time
50
µs
1.1-V REGULATOR
VCORE (BUCK)
VIN
Input voltage
2.3
6
V
V
Nominal fixed output voltage
1.1
VOUT
0 mA ≤ IOUT ≤ 600 mA at VIN > 2.5 V
VOUT = 1.1 V
DC output voltage accuracy
–1.5%
1.5%
d
Maximum duty cycle
100%
380
Low-side MOSFET on-resistance
High-side MOSFET on-resistance
Output current
185
240
300
1
mΩ
mΩ
mA
A
RDS(ON)
VIN = 3.6 V, TJ = 27ºC
VIN > 2.3 V
480
IOUT
600
ILIMIT
Switch current limit
Time to ramp from 10% to 90% of VOUT
VIN = 3.6 V
,
TSS
Soft-start time
250
µs
COUT
L
Output capacitance
Nominal Inductance
10
µF
µH
2.2
LOAD SWITCH
VIN
Input voltage range
LS_IN
1.8
3.6
V
P-channel MOSFET on-
resistance
RDS(ON)
VIN = 1.8 V, over full temperature range
385
505
mΩ
Output capacitor
Ceramic
Ceramic
4.7
5
10
20
12
µF
COUT
ESR of output capacitor
500
mΩ
MEASUREMENT SYSTEM (AFE)
AFE_GAIN[1:0] = 01
AFE_GAIN[1:0] = 10
AFE_GAIN[1:0] = 11
1.0
9.5
18
G
Amplifier gain (PGA)
V/V
mV
PGA, AFE_CAL_DIS = 1
Not tested in production
–1
1
1.5
15
VOFS
Input referred offset voltage
Comparator
Not tested in production
–1.5
To 1% of final value
(not tested in production)
tsettle
Settling time
µs
To 0.1% of final value
(not tested in production)
52
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9
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