NCP5603GEVB ON Semiconductor, NCP5603GEVB Datasheet - Page 4

• Manufacturer Part Number: NCP5603GEVB
• Description: EVAL BOARD FOR NCP5603G HI FREQ
• Manufacturer: ON Semiconductor

Specifications of NCP5603GEVB

• Design Resources: NCP5603 EVB BOM NCP5603GEVB Gerber Files NCP5603 EVB Schematic
• Current - Output / Channel: 160mA
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 4.5 ~ 5 V
• Features: Dimmable
• Voltage - Input: 3V or 3.6V
• Utilized Ic / Part: NCP5603
• Core Chip: NCP5603
• Topology: Charge Pump
• No. Of Outputs: 1
• Development Tool Type: Hardware - Eval/Demo Board
• Leaded Process Compatible: Yes
• Mcu Supported Families: NCP5603
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: NCP5603G
• Other names: NCP5603GEVBOS

1. Using ceramic 16 V working voltage capacitors is recommended to compensate the DC bias effect encountered with such type of capacitors.
2. Any external impedance connected to pin 6 shall be 10 kW or higher.
PIN FUNCTION DESCRIPTION
Pin
10
1
2
3
4
5
6
7
8
9
EN/PWM
Symbol
GND
C1N
Vsel
C2N
C1P
C2P
V
Fsel
V
out
bat
OUTPUT, PWR
INPUT, Digital
INPUT, Digital
INPUT, Digital
GROUND
POWER
POWER
POWER
POWER
POWER
Type
This pin supplies the regulated voltage to the external LED. Since high current transients
are present in this pin, care must be observed to avoid voltage spikes in the system. Good
high frequency layout technique must be observed.
One side of the external charge pump capacitor (C
with C1P, pin 9. Using low ESR ceramic capacitor is recommended to optimize the Charge
Pump efficiency.
This pin shall be connected to the power source, and must be decoupled to Ground by a
low ESR capacitor (2.2 mF/6.3 V ceramic or better (see Note 1)).
This pin is used to program the operating frequency:
This pin setup the output voltage:
This pin controls the activity of the NCP5603 chip:
The NCP5603 can operate either in a continuous mode (EN/PWM = High), or can be
controlled by a PWM pulse applied to EN/PWM to dim the output light. When EN/PWM is
Low, the external load is disconnected from the converter, providing a very low standby
current. The pull down built-in resistance makes sure the chip is deactivated even if the
EN/PWM pin is disconnected (see Note 2).
One side of the external charge pump capacitor (C
with C2P, pin 10. Using low ESR ceramic capacitor is recommended to optimize the
Charge Pump efficiency.
This pin combines the Signal ground and the Power ground and must be connected to the
system ground. Using good quality ground plane is mandatory to avoid spikes on the logic
signal lines.
One side of the external charge pump capacitor (C
with C1N, pin 2. Using low ESR ceramic capacitor is recommended to optimize the Charge
Pump efficiency.
One side of the external charge pump capacitor is connected to this pin, associated with
C2N, pin 7. Using low ESR ceramic capacitor is recommended to optimize the Charge
Pump efficiency.
Fsel = 0 → Fop = 262 kHz
Fsel = 1 → Fop = 650 kHz
Vsel = 0 → V
Vsel = 1 → V
EN/PWM = Low → the chip is deactivated, the load is disconnected
EN/PWM = High → the chip is activated and the load is connected to the
http://onsemi.com
regulated output current.
out
out
NCP5603
= 4.5 V
= 5.0 V
4
Description
FLY
FLY
FLY
) is connected to this pin, associated
) is connected to this pin, associated
) is connected to this pin, associated