30V / 3A Step-Down LED Driver
RZ3113/3114/3115
18V/30V/40V/3A
LED
RZ3113/3114/3115
4V 18V RZ3114
VFB
115mV
LED 5 30V RZ3115
5 40V LED
0 100% ...
Description
RZ3113/3114/3115
18V/30V/40V/3A
LED
RZ3113/3114/3115
4V 18V RZ3114
VFB
115mV
LED 5 30V RZ3115
5 40V LED
0 100% KHz ESR
ESR
LED RZ3113 3A
EN
PMOS 50KHz
500
RZ3113 4V RZ3114 5V RZ3115 5V 3A 0.115V 0% 100% 50KHz 500 KHz SOP8-EP
18V 30V 40V
LED LED LED
LED
EN 1 Vss 2 OCSET 3 Vcc 4
RZ3113
8 OSC 7 COMP 6 FB 5 SW
ESOP8
FB OCSET
COMP OSC
-
+ -
Reference Voltage Source with Soft Start
+
Oscillation Circuit
PWM-Switched Control Circuit
Thermal VEN Shutdown
EN
Vcc
SW 60uA VSS
V1.0 2011-5
Tel. 0510-85898501 18061979821 Fax. 0510-85898500 1/7
RZ3113/3114/3115
18V/30V/40V/3A
LED
1 EN 2 VSS 3 OCSET 4 VCC 5 SW 6 FB 7 COMP 8 OSC
ON/OFF
OPEN ON / L OFF
GND
FB VSS RC
Order Information
RZ 3113 X
Packing Blank: Tube A: Taping
Top Marking
RZ 3113 XX XX
Part number
ID code: internal WW: 01 -- 52 Year: 11= 2011
(at Ta=25 )
EN
RZ3113 RZ3114 RZ3115
VSS - 0.3 to VSS + 20 VCC VSS - 0.3 to VSS + 30 V
VSS - 0.3 to VSS + 40
VFB VSS - 0.3 to 6 V VEN VSS - 0.3 to 6 V
V1.0 2011-5
Tel. 0510-85898501 18061979821 Fax. 0510-85898500 2/7
RZ3113/3114/3115
18V/30V/40V/3A
LED
VOSC VCOMP VOCSET VSW
PD
VSS - 0.3 to 3 VSS - 0.3 to 6 VSS - 0.3 to VCC VSS - 0.3 to VCC + 0.3
V V V V mW
from Junction to case rom Junction to ambient
TST TOJP θJC θJA
-55 to +150 -40 to +125
15 40
/W /W
Note: θJA is measured with the PCB copper area(need connect to Exposed Pad) of approximately 1.5 in2(Multi-layer).
(VCC = 12V, Ta=25 , unless otherwise specified)
EN MOS RDSON
1
VFB ...
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