CAT3644HV3-GT2 ON Semiconductor, CAT3644HV3-GT2 Datasheet - Page 8

• Manufacturer Part Number: CAT3644HV3-GT2
• Description: IC LED DVR 4CH QUAD MODE 16TQFN
• Manufacturer: ON Semiconductor
• Series: QUAD-Mode®r
• Type: Backlight, White LEDr

Specifications of CAT3644HV3-GT2

• Topology: Linear (LDO), Switched Capacitor (Charge Pump)
• Number Of Outputs: 4
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Frequency: 800kHz ~ 1.6MHz
• Voltage - Supply: 2.5 V ~ 5.5 V
• Voltage - Output: 7V
• Mounting Type: Surface Mount
• Package / Case: 16-TFQFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 25mA
• Internal Switch(s): Yes
• Efficiency: 92%
• Number Of Digits: 4
• Low Level Output Current: 25 mA
• High Level Output Current: 100 mA
• Operating Supply Voltage: 2.5 V to 5.5 V
• Maximum Supply Current: 30 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
(V
IN
= 3.6 V, I
Figure 21. Foldback Current Limit
Figure 23. Dimming Waveform
100
OUT
OUTPUT CURRENT (mA)
= 80 mA (4 LEDs at 20 mA), C
200
TYPICAL PERFORMANCE CHARACTERISTICS
1x Mode
300
http://onsemi.com
IN
= C
400
OUT
8
= C
1
= C
40
30
20
10
50
40
30
20
10
0
0
2
0
1
= 1 mF, T
Figure 22. LED Current vs. LED Pin Voltage
50
AMB
Figure 24. LED Current vs. RSET
= 25°C unless otherwise specified.)
RSET RESISTANCE (kW)
LED PIN VOLTAGE (mV)
100
150
10
200
250
300
100