ncp5890 ON Semiconductor, ncp5890 Datasheet - Page 18

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

ESD PROTECTION CIRCUIT
circuitry is applied. The basic structures are illustrated in
Figure 20.
UNDERVOLTAGE LOCKOUT
the input voltage is below the minimum operating value.
Depending upon the function of the pin, different
The VUVLO circuit is used to disconnect the chip when
Engage the shut down mode
I/O Pin
SFH5711
SDA
Vbat
SCL
Log
D1
D2
U3
GND
1
GND
+Vcc
GND
2
4.7 mF/6.3 V
4
V UVLO
Figure 21. Undervoltage Lockout Basic Mechanism
C4
R1
R2
GND
R4
C1
220 k
Figure 20. Typical ESD Protection Structures
R3
FET_P
FET_N
2.2 mF
22 k
+Vbat
Figure 19. Paralleling Extension LED
12 k
GND
56 k
Voltage Structure
15
Standard Low
1
2
3
4
5
7
6
Vbat
SCL
SDA
I2CADR
VSB
AMBS
IREF
IPK
AGND
http://onsemi.com
L1
NCP5890
8
GND
U1
4.7 mF
PGND
Hysteresis
PWM1
PWM2
PWM3
18
14
Vos
FB
Lx
stresses (as defined by the JEDEC specifications), no
current or voltage, either DC or AC, beyond the maximum
ratings specifications shall be applied to any pin.
The system resumes to normal operation when the input
voltage increases by the minimum value plus the hysteresis
as specified in the data sheet.
NSR0130M2T5G
Although the structures are capable to handle the ESD
13
16
12
11
10
9
D11
DRIVER
High Voltage
Structure
D4
D9
D1
D2
D3
C2
GND
FET_N
1.0 mF/50 V
Resume to normal operation
GND
GND
D5
D6
D7
D8
Vz45V
D1
100R
100R
100R
100R
R5
R6
R7
R8
Vsw pin