CAT3612HV2-GT2 ON Semiconductor, CAT3612HV2-GT2 Datasheet - Page 9

• Manufacturer Part Number: CAT3612HV2-GT2
• Description: IC LED DVR CHRGE PUMP 2CH 12TDFN
• Manufacturer: ON Semiconductor
• Type: Photo Flash LEDr

Specifications of CAT3612HV2-GT2

• Topology: Linear (LDO), Switched Capacitor (Charge Pump)
• Number Of Outputs: 2
• Internal Driver: Yes
• Type - Primary: Flash/Torch
• Frequency: 800kHz ~ 1.3MHz
• Voltage - Supply: 3 V ~ 5.5 V
• Voltage - Output: 7V
• Mounting Type: Surface Mount
• Package / Case: 12-VFDFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 150mA
• Internal Switch(s): Yes
• Efficiency: 90%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Block Diagram
Basic Operation
where the output will be approximately equal to the input
supply voltage (less any internal voltage losses). If the
output voltage is sufficient to regulate all LEDs currents the
device remains in 1x operating mode.
the regulated currents cannot be maintained, the device
automatically switches (after a fixed of 400 ms) into 1.5x
mode.
At power−up, the CAT3612 starts operating in 1x mode
If the input voltage is insufficient or falls to a level where
V
EN/DIM
IN
Figure 27. CAT3612 Functional Block Diagram
Interface
Serial
http://onsemi.com
C
Setting DAC
1−
Reference
Oscillator
Registers
Voltage
Current
1 MHz
1.5x Charge Pump
1x mode (LDO)
C
1+
9
times the input supply voltage (less any internal voltage
losses).
chip is powered−up or is taken out of shutdown mode (via
EN/DIM pin).
In 1.5x mode, the output is approximately equal to 1.5
The above sequence is repeated each and every time the
C
2−
Mode Control
C
2+
GND
LED Channel
Current Regulators
V
LED1
LED2
OUT