BUK221-50DY Datasheet, PDF (3/16 Pages) NXP Semiconductors – Dual channel high-side TOPFET

Philips Semiconductors
3. Block diagram
BUK221-50DY
Dual channel high-side TOPFET™
3
I1
I2
6
CHANNEL1
VOLTAGE
REGULATOR
CHARGE PUMP
CURRENT LIMIT
CONTROL
LOGIC1
OPEN CIRCUIT
SENSOR
OVERVOLTAGE
PROTECTION
UNDERVOLTAGE
PROTECTION
SHORT CIRCUIT
PROTECTION
TEMPERATURE
SENSOR
STATUS DIAGNOSIS
CHANNEL2
VOLTAGE
REGULATOR
CHARGE PUMP
CONTROL
LOGIC2
CURRENT LIMIT
OPEN CIRCUIT
SENSOR
OVERVOLTAGE
PROTECTION
UNDERVOLTAGE
PROTECTION
SHORT CIRCUIT
PROTECTION
TEMPERATURE
SENSOR
BUK221-50DY
POWER
MOSFET1
4/mb
B
1
L1
POWER
MOSFET2
5
S
7
L2
RLG1
RLG2
RG
2
G
03pa69
Fig 3. Elements of the dual high-side TOPFET switch.
9397 750 11167
Product data
Rev. 01 — 16 April 2003
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
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