RT8450BGCP Richtek USA Inc, RT8450BGCP Datasheet - Page 5

• Manufacturer Part Number: RT8450BGCP
• Description: IC LED DRIVER PWM 16TSSOP
• Manufacturer: Richtek USA Inc

Specifications of RT8450BGCP

• Internal Driver: Yes
• Type - Primary: Backlight
• Mounting Type: Surface Mount
• Topology: PWM, Step-Down (Buck), Step-Up (Boost)
• Number Of Outputs: 1
• Frequency: 400kHz ~ 600kHz
• Voltage - Supply: 4.5 V ~ 40 V
• Package / Case: 16-TSSOP (0.173", 4.40mm Width) Exposed pad
• Operating Temperature: -40°C ~ 85°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Other names: 1028-1003-2

Absolute Maximum Ratings
Recommended Operating Conditions
Electrical Characteristics
(V
DS8450/B-02 November 2009
Overall
Supply Voltage
Supply Voltage VCC2 for Switch
Base Drive
Supply Current
Supply Current
Shutdown Current
Shutdown Threshold
EN Input Current
Current Sense Amplifier
Input Threshold (V
Input Current
Input Current
Output Current
VC T hreshold for PW M Switch Off
Supply Input Voltage, V
SW Pin Voltage at Switching Off, ISP, ISN ----------------------------------------------------------------------------
DCTL, ACTL, OVP Pin Voltage ------------------------------------------------------------------------------------------ 8V (Note 6)
EN Pin Voltage --------------------------------------------------------------------------------------------------------------- 20V
Power Dissipation, P
TSSOP-16 --------------------------------------------------------------------------------------------------------------------- 2.66W
WDFN-12L 3x3 --------------------------------------------------------------------------------------------------------------- 1.667W
Package Thermal Resistance (Note 4)
TSSOP-16, θ
WDFN-12L 3x3, θ
WDFN-12L 3x3, θ
Junction Temperature ------------------------------------------------------------------------------------------------------- 150°C
Lead Temperature (Soldering, 10 sec.) --------------------------------------------------------------------------------- 260°C
Storage Temperature Range ---------------------------------------------------------------------------------------------- −65°C to 150°C
ESD Susceptibility (Note 2)
HBM (Human Body Mode) ------------------------------------------------------------------------------------------------ 2kV
MM (Machine Mode) -------------------------------------------------------------------------------------------------------- 200V
Junction Temperature Range ---------------------------------------------------------------------------------------------- −40°C to 125°C
Ambient Temperature Range ---------------------------------------------------------------------------------------------- −40°C to 85°C
CC1
= V
CC2
= 12V, No Load on any Output, T
Parameter
JA
--------------------------------------------------------------------------------------------------------------- 47°C/W
JA
ISP
JC
--------------------------------------------------------------------------------------------------------- 60°C/W
--------------------------------------------------------------------------------------------------------- 8.2°C/W
D
− V
@ T
CC1,
ISN
A
)
V
= 25°C
CC2
---------------------------------------------------------------------------------------- 45V
V
V
I
I
I
V
I
I
I
VCC1
VCC2
SHDN_VCC1
ISP
ISN
VC
CC1
CC2
E N
Symbol
A
= 25°C, unless otherwise specified)
(Note 1)
VC ≤ 0.4V (Switching off)
V
V
V
4.5V ≤ common mode ≤ 50V
V
V
2.4V > VC > 0.2V
CC1
EN
EN
ISP
ISN
≤ 0.7V
= 3V
= 24V
= 24V
= V
Conditions
CC2
(Note 3)
= 24V, I
SW
≤ 1A
Min
170
4.5
--
--
--
--
--
--
--
--
3
1
I
SW
Typ
190
100
±20
1.4
0.7
12
40
--
--
--
4
/70 I
RT8450/B
SW
To be continued
Max
www.richtek.com
210
0.5
55V
40
40
--
--
--
--
--
--
6
/40
Unit
mA
mV
μA
μA
μA
μA
μA
V
V
A
V
V
5