RYC9901 Tyco Electronics, RYC9901 Datasheet - Page 3

• Manufacturer Part Number: RYC9901
• Description: IC, LED DRIVER, BOOST, SOT-23-6
• Manufacturer: Tyco Electronics

Specifications of RYC9901

• No. Of Outputs: 1
• Output Current: 1.9A
• Output Voltage: 25V
• Input Voltage: 1.9V To 5.5V
• Dimming Control Type: PWM / Analog
• Operating Temperature Range: -40°C To +85°C
• Topology: Boost
• Output Power: 700 mWatts
• Switching Frequency: 85 KHz
• Mounting Style: SMD/SMT
• Package / Case: SOT-23-6
• Duty Cycle (max): 75 %
• Number Of Outputs: 2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Note 1. Operation beyond absolute maximum rating or improper use may result in permanent damage to the device.
RYC9901
Multi-LED Boost
ABSOLUTE MAXIMUM RATINGS
Parameter
VCC to GND
Lx to GND
All Other Pins to GND
Continuous Power Dissipation (70°C)
(Derate 5.9mW/°C above 70°C)
Ambient operating temperature
Storage temperature
Max lead temperature during soldering (5 sec.)
Note 2. Devices are ESD sensitive. Handling precautions recommended. This device is rated at HBM ±2.0 kV.
ELECTRICAL CHARACTERISTICS
(Vcc = +3.5V, TA = 25°C, using circuit in Figure 1, unless otherwise noted)
(The • denotes specifications which apply over the full operating temperature range.)
Parameters
VCC
Supply voltage
Supply Current
Disable Supply Current
ENABLE
Threshold
Input Current
Turn-on Time
LX
LX Voltage
Switch Resistance
Current Limit
Current Limit Temperature Variation
FB
Feedback Voltage
Feedback Voltage Temperature
Variation
Other
Switching frequency
Frequency Temperature Variation
Maximum Duty Cycle
Thermal Shutdown
Thermal Shutdown Hysteresis
Tyco Electronics Corporation 308 Constitution Drive, Menlo Park, CA 94025 Tel: [phone] Fax: [phone]
© 2005 Tyco Electronics Corporation.
maximum rating conditions for extended periods or to conditions beyond absolute maximum rating conditions may adversely affect device
reliability. Functional operation under absolute maximum rating conditions is not implied.
Condition
V
V
Low-to-High
High-to-Low
V
V
ENABLE
ENABLE
ENABLE
ENABLE
= 0V
= 3.5V
= 0V
= 3.5V
(Notes 1, 2)
Min
-0.3
-0.3
-0.3
-40
− 65 to +150
VCC + 0.3
www.tycopowercomponents.com
Document: SCD 25493
Status: Released
Rev.: D
Rev Date: March 8, 2005
Raychem
Power Management ICs
Max
+6.5
380
+85
260
33
•
•
•
•
•
•
•
Min
600
300
1.9
0.8
60
-1
Exposure to absolute
-0.05
0.15
0.05
Typ
-----
150
200
860
±10
340
±10
135
1.3
1.3
±5
85
75
10
Units
1900
mW
Max
0.55
260
370
110
°C
°C
°C
5.5
1.8
V
V
V
25
1
3 of 12
Units
kHz
mΩ
mA
mV
µA
µA
°C
°C
µA
%
%
%
%
µs
V
V
V
V