SLOA327A November   2022  – August 2024 LM25017 , LM25018 , LM25019 , LM25180 , LM25183 , LM25184 , LM5017 , LM5018 , LM5019 , LM5160 , LM5160A , LM5161 , LM5168-Q1 , LM5169-Q1 , LM5180 , LM5181 , SN6501 , SN6505A , SN6505B , SN6505D-Q1 , SN6507 , TPS55010

 

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Table 1 Usable Isolated Power Topologies and Proposed TI Devices
Parameter Open-Loop LLC
(see Figure 1)		 Open-Loop Push-Pull
(see Figure 2)		 Duty Control Push-Pull
(see Figure 3)		 Fly-Buck
(see Figure 4)		 Fly-Buck Boost
(see Figure 5)		 Primary-Side Regulated Flyback
(see Figure 6)		 Fully-Integrated Modules
(see Figure 7)
VIN (MIN, MAX) 9V, 34V 2.25V, 36V 3V, 36V 2.95V, 120V 2.95V,
120V – |Non-iso VOUT_N|		 4.5V, 65/100V(3) 4.5V, 26.4V
MAX POUT Up to 9W Up to 10W Up to 5W Up to 15W Up to 10W Up to 15W/50W+ (6) Up to 2W
VOUT Regulation Non-regulated VIN controlled Quasi-regulated Regulated Regulated and non-regulated
VOUT setting(5) n, (Lr, Cr) n n, RDC n, resistor-divider for non-iso VOUT RFB, n (4)
V_ISO Depends on used transformer Up to 5kVRMS
Type of Isolation Up to reinforced
EMI Best Good Good Better Better Good (4)
Supporting Devices UCC25800-Q1
UCC25800B-Q1		 SN6501,
SN6505A, SN6505B SN6505D-Q1,
SN6507		 SN6507 TPS55010,
LM5017, LM5018, LM5019,
LM25017, LM25018, LM25019,
LM5160, LM5160A, LM5161,
LM5168, LM5169		 Converters (integrated MOSFET):
LM5180, LM5181, LM25180, LM25183, LM25184

Controllers (external MOSFET):
LM5185, LM25185		 Isolated Power
UCC33410, UCC33420, UCC12050, UCC12040, UCC12051-Q1, UCC12041-Q1, UCC14xxx, UCC15xxx DCH01, DCPA1, DCP01B, DCR01, DCV01, DCP02, DCR02

Isolated data and power
ISOW784x, ISOW7841A-Q1, ISOW774x
(1)
LMR50410XF, TPS560430XF, TPS560430X3F , TPS560430YF, LMR23630F, LMR23630AF,
LM73605 , LM73606,
LMR36015FB,
LMR36500F, LMR36501F, LMR36502F, LMR36503RF,
LMR36503MSC-Q1, LMR36506RF, LMR36520FA
Reference Designs (Examples) PMP23061,
PMP23216,
PMP23209, PMP40980, PMP40970, PMP23240		 TIDA-01576,
PMP22992,
PMP21561		 SN6507DGQEVM TIDA-00688,
TIDA-00689,
PMP15006,
PMP10532 		(2)
PMP10545,
PMP10733,
PMP10571		 TIDA-010048,
TIDA-010006,
TIDA-010009,
TIDA-01535,
PMP31177,
PMP30834,
PMP30750,
PMP22760		 TIDA-01434
Additional Collateral SLUAAB9
SSZTCX7		 SLLA587,
SLLA436,
SLLA566		 SLLA587,
SLLA566		 SLYT615,
SLPY004,
SNVA790,
Design Calculator		 SNVAA84,
Design Calculator		 SNVAA28,
SNVA900,
SLYT800		 SSZTD18,
SLUA977,
SLLA553,
SLYY202,
SLLA561
(1) Basically any synchronous buck which can be forced to operate in CCM or in forced PWM and for which a negative current limit is large enough and specified can work in low-power, fly-buck configuration. Select the appropriate device version out of a device family. Cross-check negative current limit and loop stability - see data sheets and additional collateral.
(2) Cross-check loop stability and consult collateral for inverting buck boost such as SNVA856, SLVA933, SLVA910, SLYT286, SLVAE10, SLVA317.
(3) Additional limitation of 65V (for converters with integrated MOSFET) or 100V (controllers with external MOSFET) exists for switch-node voltage; see the specific data sheet especially regarding the reflected output voltage and the needed clamp circuit.
(4) Depends on specific module and used topology
(5) n-Turns ratio of transformer
(6) MAX POUT up to 15W for converters with integrated MOSFET, more than 50W for controllers plus external MOSFET