Datasheet

UCD9248

www.ti.com

SLVSA33A –JANUARY 2010–REVISED AUGUST 2012

PIN NO. PIN NAME DESCRIPTION

48 nTRST JTAG Test reset – tie to ground with 10kOhm resistor

49 PGood Power Good indication, Active high open-drain output. Pull-up to 3.3V with 10 kΩ resistor.

50 SRE-4B Synchronous rectifier enable output 4B, active high

51 SRE-2A Synchronous rectifier enable output 2A, active high

52 SRE-3B Synchronous rectifier enable output 3B, active high

53 SEQ-2 Sequencing Input/Output

54 TMUX-2 Temperature multiplexer select output S2

55 DGND3 Digital Ground

56 V33DIO Digital I/O 3.3V supply

57 V33D Digital core 3.3V supply

58 V33A Analog 3.3V supply

59 BPCap 1.8V bypass capacitor connection

60 AGND1 Analog Ground

61 AGND2 Analog Ground

62 EAP1 Error analog, differential voltage. Positive channel #1 input

63 EAN1 Error analog, differential voltage. Negative channel #1 input

64 EAP2 Error analog, differential voltage. Positive channel #2 input

65 EAN2 Error analog, differential voltage. Negative channel #2 input

66 EAP3 Error analog, differential voltage. Positive channel #3 input

67 EAN3 Error analog, differential voltage. Negative channel #3 input

68 EAP4 Error analog, differential voltage. Positive channel #4 input

69 EAN4 Error analog, differential voltage. Negative channel #4 input

70 V33FB Connection to the base of the 3.3V linear regulator transistor. (no connect if not using an external

transistor)

71 Aux-In (AD13) Unused Analog Input – Tie to ground with a 10KOhm resistor

72 Aux-In (AD14) Unused Analog Input – Tie to ground with a 10KOhm resistor

73 CS-4B Power stage 4B current sense input

74 CS-3B Power stage 3B current sense input

75 CS-1A Power stage 1A current sense input and input to analog comparator 1

76 ADDR-1 Address sense input. Channel 1

77 ADDR-0 Address sense input. Channel 0

78 CS-2B Power stage 2B current sense input

79 CS-1B Power stage 1B current sense input

80 AGND3 Analog Ground