AN30185A-VL Panasonic Electronic Components, AN30185A-VL Datasheet
AN30185A-VL
Specifications of AN30185A-VL
Related parts for AN30185A-VL
AN30185A-VL Summary of contents
Page 1
... Publication date: October 2012 DESCRIPTION AN30185A is a power management LSI which has DC-DC step down regulators (2-ch) that employs hysteretic control system. By this system, when load current changes suddenly, it responds at high speed and minimizes the changes of output voltage ...
Page 2
... stg EN,EN2,FB1,FB2 – 0 LX1,LX2,PCNT,DIS, – 0 RESET,BUF,VREG HBM (Human Body Model) + 0.3) V must not be exceeded θ PD(Ta=25°C) JA 84.9 °C /W 1.472 W 2 AN30185A Rating Unit 6.0 V °C – °C – 150 °C – 150 + 0. 0. PD(Ta=85°C) Notes 0 ...
Page 3
... FB1 – 0.3 — FB2 – 0.3 — LX1,LX2 – 0.3 — PCNT – 0.3 — DIS – 0.3 — RESET – 0.3 — BUF – 0.3 — VREG – 0.3 — AN30185A Max. Unit Notes * 0.3 ...
Page 4
... V IN RMV VRST = 3.3 V → DET VRST = 0 V → 3 RMV RON RST RON DIS BUF = 10 μA I OUT(BUF) VOUT 4 AN30185A Limits Unit Notes Min Typ Max μA — 200 300 — — 0 0.3 V — 1.5 3.3 — V — μA — 2.4 10 — ...
Page 5
... V IN EFF4 I = 500 mA OUT2 DD1 OUT1 VRPL1 DD1 I = 450 mA OUT1 VRPL2 DD2 OUT2 VRPL1 DD2 I = 500 mA OUT2 VRPL2 5 AN30185A Reference values Unit Notes Min Typ Max μA — 0 — *1 — 6 — — 8 — — 10 — — ...
Page 6
... Capacitive load : 26 μF DD1 OUT1 TSTU The time until 90 % from target value. Capacitive load : 24 μF DD2 OUT2 TSTU The time until 90 % from target value. 6 AN30185A Reference values Unit Notes Min Typ Max — 25 — — 25 — — ...
Page 7
... The time until 90 % from 10 % TSTU of target value. RST — DLY IPCNT PCNT = 3.3 V TLAT — CH DD1 FB1 = 1.0 V → SCP DD2 FB2 = 1.8 V → SCP TJSO Temperature error detection 7 AN30185A Reference values Unit Notes Min Typ Max — 0 — — 5 — — 10 — ...
Page 8
... LDO output pin ( Power supply for internal control circuit / 2. Power supply pin LDO output pin ( 0 Power supply pin ( for DC-DC2 ) Power supply pin ( for DC-DC2 ) Driver output pin ( for DC-DC2 ) Driver output pin ( for DC-DC2 ) Ground pin ( for DC-DC2 ) Ground pin ( for DC-DC2 ) 8 AN30185A PGND1 12 PGND1 11 LX1 10 LX1 9 8 ...
Page 9
... Notes) This block diagram is for explaining functions. Part of the block diagram may be omitted may be simplified. RESET Enable DC-DC1 (1.0 V, 800 mA) SHP Enable ENC DC-DC2 (1.8 V, 800 mA) Enable SHP Enable BUF 9 AN30185A 13 : RESET PCNT 6 : PCNT 5 : DIS 14 : FB1 OCP 7,8 : PVIN1 9,10 : LX1 Control Driver logic 11,12 : PGND1 ...
Page 10
... EN2 pin is the control pin for DC-DC2 and BUF. When EN2 pin becomes High, DC-DC2 and BUF turn on. Even if EN2 is High under the condition that EN is Low, DC-DC2 and BUF do not turn on. High High Low OFF ON OFF 10 AN30185A Low High Low OFF OFF OFF OFF OFF OFF OFF OFF Ver. BEB ...
Page 11
... BUF Note) All values given in the above figure are typical values Constant current discharge (2.5 μA) 300 μs 3.3 V 150 μs 2.81 ms 1 μs 0.47 ms 4. AN30185A Terminated with a resistor V IN Terminated with a resistor Terminated with a resistor Terminated with a resistor Ver. BEB ...
Page 12
... BUF Note) All values given in the above figure are typical values Constant current discharge (2.5 μA) 300 μs 3.3 V 150 μs 2.81 ms 1 μs 0.47 ms 4. AN30185A ) is as follows. IN 2.92 V 2.81 V 0.85 V Natural Terminated discharge with a resistor V IN Terminated with a resistor Natural Terminated ...
Page 13
... Start / Stop control sequence by EN2 pin under the condition that EN pin is fixed to High is as follows EN2 UVLO RESET 1.0 V FB1 PCNT 3.3 V DIS (3.3 V line) 1.88～3.76 ms FB2 BUF Note) All values given in the above figure are typical values. 150 μs 1 μs 0. AN30185A Terminated with a resistor Terminated with a resistor Ver. BEB ...
Page 14
... BUF starts, preventing rush current and overshoot. BUF stops because UVLO detects. BUF is terminated with a resistor when EN pin shifts to Low. BUF also stops when EN2 pin becomes Low, and the output pin is terminated with a resistor. and DIS pin is terminated with a resistor AN30185A Ver. BEB ...
Page 15
... BUF has limit characteristics, which the output current decreases as the output voltage falls. The peak input current is 40 mA(typ). The input current at BUF = mA(typ). Output voltage 0.8A to 2 1.6A(typ) Output current 15 AN30185A Output current b) BUF Ver. BEB ...
Page 16
... Note) The characteristics listed below are reference values derived from the design of the IC and are not guaranteed. Protection Sequence When the following state continues for 1 ms(typ), AN30185A shifts to the protection sequence. — Any of DCDC1 and DCDC2 shorts to GND. (Output voltage is 50% or lower of target value.) — ...
Page 17
... Is shorted to GND. Since each function is not latched unlike the case of [3.Protection : Protection sequence], it recovers by the release of ground-short. The operation is as follows. 2.55 V VREG 2.1 V RESET 1.0 V FB1 PCNT 3.3 V DIS (3.3 V line) PCNTB 1.8 V FB2 BUF Normal operation Ground-short release Ground-short 0. OFF state Normal operation (Start sequence) 17 AN30185A 30 ms 3.75 ms 4.22 ms Ver. BEB ...
Page 18
... TYPICAL CHARACTERISTICS CURVES (1) Output ripple voltage VIN = 3 Cout = 10 μF ( GRM21BB31A106K[Murata Lout = 2.2 μH ( NR3012T2R2M[Taiyo Yuden] ) DC-DC1 Iout1 = 10 mA LX1 Vout1 DC-DC1 Iout1 = 450 mA LX1 Vout1 AN30185A DC-DC2 Iout2 = 10 mA LX2 Vout2 DC-DC2 Iout2 = 500 mA LX2 Vout2 18 Ver. BEB ...
Page 19
... TYPICAL CHARACTERISTICS CURVES (Continued) (1) Output ripple voltage VIN = 5 Cout = 10 μF ( GRM21BB31A106K[Murata 2.2 μH ( NR3012T2R2M[Taiyo Yuden] ) DC-DC1 Iout1 = 10 mA LX1 Vout1 DC-DC1 Iout1 = 450 mA LX1 Vout1 AN30185A DC-DC2 Iout2 = 10 mA LX2 Vout2 DC-DC2 Iout2 = 500 mA LX2 Vout2 19 Ver. BEB ...
Page 20
... Iout1 = 200 mA , Δ μsec Iout1 LX1 Vout1 DC-DC1 Iout1 = 200 Δ μsec Iout1 LX1 Vout1 AN30185A DC-DC2 Iout2 = 250 mA , Δ μsec Iout2 LX2 Vout2 DC-DC2 Iout2 = 250 Δ μsec Iout2 LX2 ...
Page 21
... Iout1 = 200 mA , Δ μsec Iout1 LX1 Vout1 DC-DC1 Iout1 = 200 Δ μsec Iout1 LX1 Vout1 DC-DC2 Iout2 = 250 mA , Δ μsec Iout2 LX2 Vout2 DC-DC2 Iout2 = 250 Δ μsec Iout2 LX2 Vout2 21 AN30185A Ver. BEB ...
Page 22
... Cout = 10 μF ( GRM21BB31A106K[Murata Lout = 2.2 μH ( NR3012T2R2M[Taiyo Yuden] ) DC-DC1 1.2 1.15 Iload=450mA Iload=800mA 1.1 1.05 1 0.95 0.9 0.85 0.8 2.5 3 3.5 4 Input Voltage [V ] DC-DC2 VIN=3.3V VIN=5V 100 1000 DC-DC2 500 600 700 800 DC-DC2 4 AN30185A 100 VIN=3.3V 60 VIN= 100 load current [mA] 2 1.95 VIN=3.3V VIN=5V 1.9 1.85 1.8 1.75 1.7 1.65 1.6 0 100 200 300 400 ...
Page 23
... You are fully responsible for the incorporation of the above application circuit and information in the design of your equipment. 3.3V PCNT U1 DIS FB1 VOUT1 LX1 L-OUT1 C-OUT1 FB2 VOUT2 LX2 L-OUT2 C-OUT2 BUF C-BUF PGND2 Figure : Bottom Layer with silk screen 23 AN30185A ( Bottom View )with Evaluation board Ver. BEB ...
Page 24
... F Murata 4.7 μ F Murata 4.7 μ F Murata 1 μF Murata 1 μF Murata 10 μF Murata 10 μF Murata 2.2 μH TAIYO YUDEN 2.2 μH TAIYO YUDEN — Panasonic 10 K Ω Panasonic 24 AN30185A Part Number GRM21BB31A475KA74L GRM21BB31A475KA74L GRM21BB31A475KA74L GRM155B31A105KE15D GRM155B31A105KE15D GRM21BB31A106KE18L GRM21BB31A106KE18L NR3012T2R2M NR3012T2R2M MTM76111 ERA3ARW103V Ver. BEB ...
Page 25
... PACKAGE INFORMATION (Reference Data) Package Code : HQFN024-P-0404 AN30185A Body Material Lead Material Lead Finish Method : Au Plating 25 Unit: Free : Epoxy Resin : Cu Alloy Ver. BEB ...
Page 26
... Please use this product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances, including without limitation, the EU RoHS Directive. Our company shall not be held responsible for any damage incurred as a result of your using the LSI not complying with the applicable laws and regulations. AN30185A 26 Ver. BEB ...
Page 27
... Verify the risks which might be caused by the malfunctions of external components. 11. Connect the metallic plates on the back side of the LSI with their respective potentials (AGND, PVIN, LX). The thermal resistance and the electrical characteristics are guaranteed only when the metallic plates are connected with their respective potentials. 27 AN30185A Ver. BEB ...
Page 28
Request for your special attention and precautions in using the technical information and (1) If any of the products or technical information described in this book exported or provided to non-residents, the laws and regulations of the ...