CAT3647HV3-GT2 ON Semiconductor, CAT3647HV3-GT2 Datasheet - Page 4

• Manufacturer Part Number: CAT3647HV3-GT2
• Description: IC LED DRVR WHITE BCKLGT 16-TQFN
• Manufacturer: ON Semiconductor
• Series: QUAD-Mode®r
• Type: Backlight, White LEDr

Specifications of CAT3647HV3-GT2

• Topology: Switched Capacitor (Charge Pump)
• Number Of Outputs: 3
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Frequency: 800kHz ~ 1.6MHz
• Voltage - Supply: 2.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 16-TFQFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 30mA
• Internal Switch(s): Yes
• Efficiency: 92%
• Number Of Segments: 3
• Operating Supply Voltage: 2.5 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Lead Free Status / Rohs Status: Details
• Other names: CAT3647HV3-GT2TR

LED Current Setting
connected between the RSET pin and ground. Table 5 lists
standard resistor values for several LED current settings.
Table 4. RECOMMENDED EN/DIM TIMING
(For 2.4 V ≤ V
Table 5. RESISTOR RSET AND LED CURRENT
T
The full scale LED current is set by the external resistor
Symbol
PWRDWN
T
T
T
LED
Full Scale LED Current [mA]
LO
HI
EN/DIM
Current
LED
IN
EN/DIM program low time
EN/DIM program high time
EN/DIM low time to shutdown
LED current settling time
≤ 5.5 V, over full ambient temperature range -40°C to +85°C.)
10
15
20
25
30
Shutdown
2
5
T
LED
Name
Figure 2. EN/DIM Digital Dimming Timing Diagram
100%
T
LO
RSET [kW]
T
37.4
14.7
7.50
4.99
3.74
3.00
2.49
HI
97% 93%
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32 Levels
Conditions
4
3%
0%
100%
Min
0.2
0.2
1.5
T
PWRDWN
Typ
40
Shutdown
Max
100
Units
ms
ms
ms
ms