ncp5890 ON Semiconductor, ncp5890 Datasheet - Page 6

• Manufacturer Part Number: ncp5890
• Description: Light Management Ic Dedicated For Lcd Backlighting And Multi-led Fun Light Applications
• Manufacturer: ON Semiconductor

ANALOG SECTION:
temperature, unless otherwise noted), operating conditions 2.85 V < Vbat < 5.5 V, unless otherwise noted.
7. The overall output current tolerance depends upon the accuracy of the external resistor. Using 1% or better resistor is recommended.
8. The external circuit must not force the I
9. This parameter guarantees the function for production test purposes.
10. The ambient sense linearity is guaranteed when the voltage at the output of the internal amplifier is limited to 1.5 V. This voltage is equal to the
11. Parameter guaranteed by design, not tested in production.
DIGITAL PARAMETERS SECTION:
ambient temperature, unless otherwise noted), operating conditions 2.85 V < Vbat < 5.5 V, unless otherwise noted.
NOTE:
10, 11, 12
Pin
1,2
1,2
1
2
3
3
to both I
input voltage times the programmed gain. Beyond this value, the operational amplifier is in the saturation region and the linearity is no longer
guaranteed.
Pin
10
12
11
7
6
7
6
9
9
4
4
4
5
Digital inputs undershoot < − 0.30 V to ground, Digital inputs overshoot < 0.30 V to V
REF
Symbol
F
V
C
V
V
V
SCK
G
G
BVpwm2
BVpwm2
BVpwm1
Symbol
IH
IH
G
G
G
and I
IL
IN
IL
I
V
I
Fpwm
AMB0.25
AMB0.50
M
SDUSD
V
V
R
LKGM
I
AMB01
AMB02
AMB04
V
V
F
I
k
k
REFK
REF
REF
VSD
VSD
PK
DCY
ref
pk
FB
LF
iph
PK
pins.
Input I2C clock frequency
Positive going Input High Voltage Threshold, SCL, SDA signals
Negative going Input High Voltage Threshold, SCL, SDA signals
SDA Input Capacitance
I2C address extension
I2C address extension
(Typical values are referenced to T
Reference Current @ Vref = 1144 mV (Note 8)
Reference Current @ Vref = 1144 mV (Note 8)
Reference Current to ILED peak current ratio
Reference Current to Inductor peak current ratio
Reference Voltage (Note 8)
Reference Voltage (Note 8)
Feedback Voltage @ ILED = 25 mA (Note 9)
Boost Operating Maximum Duty Cycle (0°C < T
Current Mirror Leakage Current
Low Frequency PWM Clock (derived from F
Low Frequency Clock (derived from F
Photo sense bias supply @ Ibias = 1 mA
Photo sense bias supply internal impedance
Photo sense leakage current (Note 11)
Photo sense internal Gain 1/4
Photo sense internal Gain 1/2
Photo sense internal Gain 1
Photo sense internal Gain 2
Photo sense internal Gain 4
Photo sense input voltage (Note 10)
Breakdown Voltage pin 10 to pin 10 (Note 11)
Breakdown Voltage pin 11 to Pin 12 (Note 11)
Breakdown voltage pin 12 to GND (Note 11)
REF or
(Typical values are referenced to Ta = +25°C, Min & Max values are referenced −40°C to +85°C
I
PK
pin voltage either higher or lower than the specified voltage. The reference voltage applies
Rating
A
http://onsemi.com
Rating
= +25°C, Min & Max values are referenced −40°C to +85°C ambient
pwr
/8192)
6
pwr
/8192)
A
< 85°C)
Vbat*0.7
BAT
Min
1.6
0
0
−10%
−3%
Min
140
0.6
2.5
90
1
1
9
9
9
Typ
10
9700
1144
1144
0.25
Typ
250
425
160
0.5
94
30
1
2
4
Vbat+0.3V
V
Max
400
0.4
0.3
15
BAT
+10%
Vbat
Max
+3%
100
100
200
185
100
1.5
20
Unit
kHz
Unit
mV
mV
mV
pF
mA
mA
nA
Hz
Hz
nA
V
V
V
V
%
W
V
V
V
V
V