CAT4201TD-GT3 ON Semiconductor, CAT4201TD-GT3 Datasheet - Page 6

• Manufacturer Part Number: CAT4201TD-GT3
• Description: IC LED DRIVER HIGH BRIGHT TSOT-5
• Manufacturer: ON Semiconductor
• Type: HBLED Driverr

Specifications of CAT4201TD-GT3

• Topology: PWM, Step-Down (Buck)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Automotive, Backlight
• Type - Secondary: High Brightness LED (HBLED)
• Frequency: 1MHz
• Voltage - Supply: 6.5 V ~ 36 V
• Voltage - Output: 36V
• Mounting Type: Surface Mount
• Package / Case: TSOT-23-5, TSOT-5, TSOP-5
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 350mA
• Internal Switch(s): Yes
• Efficiency: 94%
• Number Of Segments: 1
• Operating Supply Voltage: 6.5 V to 28 V
• Maximum Supply Current: 0.4 mA
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: CAT4201TD-GT3TR

External Component Selection
accuracy, LED ripple current, switching frequency and component size.
NOTE:
Table 4. EXTERNAL COMPONENT SELECTION
Table 5. INDUCTOR SELECTION DEPENDING ON VBAT SUPPLY VOLTAGE
Table 4 provides the recommended external components L and C2 that offer the best performance relative to the LED current
LED Current (mA)
Larger C2 capacitor values allow to reduce further the LED ripple current if needed.
VBAT Supply Voltage (V)
< 150
≥150
(V
Figure 20. RSET Transient Response
IN
< 26
≥ 26
= 13 V, I
LED
L Inductor (mH)
= 300 mA, L = 22 mH, C
22
33
47
TYPICAL OPERATION CHARACTERISTICS
1 LED
Minimum Inductor L (mH)
1
http://onsemi.com
= 4.7 mF, C
C2 Capacitor (mF)
4.7
4.7
10
6
22
33
2
= 10 mF, T
AMB
Figure 21. Line Transient Response
= 25°C unless otherwise specified)
L Inductor (mH)
22
47
(10 V to 13 V)
2 LEDs
C2 Capacitor (mF)
4.7
2.2